chore: bump version to 0.9.1+2026101701

Changelog: Fix pasting and Chinese input in text fields

.agents/agent-config.md

@@ -0,0 +1,32 @@
+# Agent Configuration Model
+
+Use the smallest durable surface that matches the job.
+
+## Surfaces
+
+- `AGENTS.md`: repository entry point. Keep it small and reserve it for always-on rules, routing, and high-priority expectations.
+- No `CLAUDE.md`: Claude Code v2.1.277+ loads `AGENTS.md` at startup only while no `CLAUDE.md`, `.claude/CLAUDE.md`, or `CLAUDE.local.md` sits in the working directory or above it, so adding one silently replaces `AGENTS.md` for Claude. Sessions that cannot load `AGENTS.md` directly (third-party providers, telemetry disabled) need an uncommitted `CLAUDE.local.md` containing `@AGENTS.md`. The one nested `CLAUDE.md`, in `plugins/rust_api/`, imports the root `AGENTS.md` for the same reason.
+- `.agents/*.md`: human- and agent-readable reference docs linked from `AGENTS.md`. Use these for detailed project context, commands, architecture, and conventions.
+- `.agents/skills/*/SKILL.md`: repo skills shared by Codex and Claude Code. Use these for repeatable workflows that should be discoverable by name and description; `.claude/skills/` holds one symlink per skill so Claude Code finds the same files.
+- `.codex/config.toml`: trusted project Codex settings such as MCP, hooks, sandbox, approval, or model defaults.
+- `.codex/rules/*.rules`: command permission rules for running commands outside the sandbox. None exist yet. Do not mix these with coding conventions in `.agents/rules.md`.
+- `.codex/hooks.json` or `.codex/config.toml` hooks: lifecycle automation such as prompt checks, command validation, or final verification gates.
+
+## Placement Rules
+
+- Put stable team conventions in `AGENTS.md` only when every task must see them without opening another file.
+- Put detailed explanations in `.agents/*.md` and link them from `AGENTS.md`.
+- Put reusable task workflows in `.agents/skills/<skill-name>/SKILL.md`.
+- Put mechanical enforcement in linters, tests, hooks, or `.codex/rules`; do not rely on prose when tooling can enforce the rule.
+- Split a rule into the part that can be counted and the part that cannot, and enforce them differently. A rule resting entirely on judgment gets decided at the keyboard, at the moment the exception looks most justified; the comment policy is the worked example, where "is this comment useful" stays prose and review while "are these comments too frequent" became a measured gate. Find the countable half before writing more prose.
+- Restate the one-line form of a rule in every context that must obey it, and keep its explanation in one `.agents/*.md` file that the others link to. Prefer a runnable check to either: a gate an agent trips before reporting done outperforms a paragraph asking it to have been careful.
+- State a gate's real force. Enforcement differs per tool, and a rule that claims uniform coverage it does not have is worse than one that names the gap.
+- Keep user-specific preferences out of the repository. They belong in user-level Codex configuration or user-level skills.
+
+## Skill Authoring Rules
+
+- Use lowercase hyphenated names.
+- Start descriptions with `Use when...`.
+- Describe trigger conditions in the description, not the workflow.
+- Keep `SKILL.md` lean; link to `.agents/*.md` for large reference material.
+- Add scripts only when deterministic behavior is needed repeatedly.

.agents/commands.md

@@ -0,0 +1,388 @@
+# Commands
+
+## Building
+
+Update submodules first. The ClashMeta Go core lives in `core/Clash.Meta/`.
+
+```bash
+git submodule update --init --recursive
+```
+
+Full package build, including Go core, Flutter, and packaging, runs through `setup.dart`:
+
+```bash
+dart setup.dart macos
+dart setup.dart linux
+dart setup.dart windows
+dart setup.dart android
+```
+
+The desktop Go core and the Rust helper build automatically: Flutter runs
+`plugins/setup/hook/build.dart` on every `flutter build` and `flutter test`,
+and the hook drives `CoreBuilder` from the `setup_hooks` package in
+`plugins/setup/setup_hooks/`. Artifacts land in `libclash/`. Android's Core is
+the AAR the `:core` Gradle module builds with `gomobile bind` before anything
+compiles against it; that needs `go` on `PATH` and nothing else, since the
+gomobile tools come from `core/go.mod` and the NDK from AGP. The hook reruns only when Go, Rust, or
+`setup_hooks` inputs change; the fingerprint cache lives in
+`.dart_tool/setup_build_cache/`. To force a rebuild, delete that directory:
+
+```bash
+rm -rf .dart_tool/setup_build_cache
+```
+
+Flutter hides the hook's output on success, so to see why the Core was or was
+not rebuilt read `.dart_tool/setup_build_cache/hook.log`; each invocation starts
+with a `===` line carrying its timestamp and target.
+
+The hook runs for `flutter test` and for `dart run` of any root-package script
+too, so a pure Dart test run needs the Go toolchain, and on Linux and Windows
+also `cargo` and `rustc` — the Helper fingerprint shells out to both even on a
+cache hit. The hook protocol carries no build mode and no caller, so the only
+switch is the user-define in the root `pubspec.yaml`:
+
+```yaml
+hooks:
+  user_defines:
+    setup:
+      build_assets: true   # false turns the Go core and Helper hook into a no-op
+    rust_api:
+      build_assets: true   # false does the same for the Rust library
+```
+
+CI flips `setup` to `false` with `yq` in its throwaway checkout before
+`dart run tool/changelog.dart` and `dart run tool/test.dart`; no test loads the Go core. `rust_api`
+stays on there because the editor tests in `test/plugins/code_forge/` and the socket
+test in `test/core/desktop/ipc_native_test.dart` load the Rust library the hook
+builds; the release-notes job, which runs no tests, flips both.
+Never commit `false`: a build with it set stages whatever `libclash/` already
+holds and bundles no Rust library, which is why `setup.dart` refuses to package
+while it is set. Locally, `false` is worth setting for a Dart-only test loop,
+but the hook cache keys on the user-define, so the first build afterwards runs
+the hooks again. The editor and IPC socket tests still need the Rust library: keep `rust_api`
+on, or point `FRB_DART_LOAD_EXTERNAL_LIBRARY_NATIVE_LIB_DIR` at a directory that
+holds a `rust_api` library built from the same sources.
+
+## Flutter Development
+
+Use the default Flutter SDK directly:
+
+```bash
+flutter pub get
+flutter run
+flutter test
+```
+
+Use `flutter test`, not `dart test`, because models pull in Flutter types.
+
+A development build takes over the host exactly like a release: it creates the TUN device, sets the system proxy, on
+macOS rewrites the system DNS, registers itself as the login item, and on Windows and Linux starts its Core through the
+shared privileged Helper, which stops the Core an installed FlClash is running. Only the data directory is kept apart,
+and only for some builds: a macOS debug build is `com.follow.clash.debug` and an Android debug build `com.follow.clash.dev`,
+while profile and release builds, and every build on Windows and Linux, share the directory and preferences of the
+installed app. Safe mode keeps all of the host changes off and never opens the Core's listeners or external
+controller, so it does not compete with the installed app for the mixed, DNS, RESTful API and other loopback ports:
+
+```bash
+flutter run --dart-define-from-file=env.json --dart-define=SAFE_MODE=true
+```
+
+`.run/main_safe_mode.run.xml` is the same launch for IntelliJ, and `Flutter App (Safe Mode)` in `.zed/debug.json` (debugger) or `flutter run (Safe Mode)` in `.zed/tasks.json`
+(plain run) for Zed. The build is bannered `SAFE MODE`, the tray shows the
+`status_4` bug icon with a menu of only show and exit and no traffic title, and the settings keep their values, so
+nothing has to be flipped back before a normal run. See the safe mode section of `architecture.md` for the owners that consult the flag.
+
+## Code Generation
+
+Run code generation after modifying models, providers, or database schema:
+
+```bash
+dart run build_runner build --delete-conflicting-outputs
+dart run build_runner watch
+```
+
+Code generation covers:
+
+- Riverpod providers through `riverpod_generator`.
+- Models through `freezed` and `json_serializable`.
+- Database tables through `drift_dev`.
+
+The Dart-Rust bindings in `plugins/rust_api` are generated by `flutter_rust_bridge_codegen` from
+`plugins/rust_api/flutter_rust_bridge.yaml`; rerun it from that directory after changing anything under
+`rust/src/api/`:
+
+```bash
+cd plugins/rust_api && flutter_rust_bridge_codegen generate
+```
+
+Generated output paths, configured in `build.yaml`:
+
+- `lib/models/generated/*.g.dart`, `*.freezed.dart`.
+- `lib/providers/generated/*.g.dart`.
+- `lib/database/generated/*.g.dart`.
+
+Tray and Windows app icons are generated, not hand-edited. `assets_source/images/icon/*.svg` is
+the source of truth; the script needs `rsvg-convert` (librsvg) on `PATH`:
+
+```bash
+dart run tool/generate_status_icons.dart
+```
+
+It writes the tray PNGs with Flutter `2.0x/`–`4.0x/` resolution variants to `assets/images/tray/unix/`,
+multi-size tray `.ico` files to `assets/images/tray/windows/`, and `windows/runner/resources/app_icon.ico`
+from `assets/images/icon.png`. macOS draws its menu bar icon as a template, so it skips the ringed color
+icons, whose logo shrinks to a small glyph once only alpha shows: `status_1` renders the bare logo from
+`assets_source/images/icon/glyph.svg` and `status_4` reuses `status_4.svg`, both recolored to black into
+`assets/images/tray/macos/`; the sources keep their colors. `glyph.svg` is also the geometry of the Android notification drawables
+`android/service/src/main/res/drawable/ic.xml` and `ic_service.xml`; change them together. `pubspec.yaml` declares the three tray directories with `platforms:` so each
+build only bundles the format its tray loads; a new status icon needs a source SVG and an entry in the
+script's `statusIconNames`, nothing in `pubspec.yaml`.
+
+## Testing
+
+Tests use `package:test/test.dart` for pure Dart logic and `flutter_test` for provider and widget tests. `mocktail` is the mocking framework.
+
+```bash
+flutter test test/models/
+flutter test test/core/
+flutter test test/core/desktop/
+flutter test test/providers/
+flutter test test/common/
+flutter test test/database/
+flutter test test/widgets/
+flutter test test/setup_test.dart
+flutter test plugins/proxy/test/proxy_test.dart
+```
+
+For the whole suite, or a directory of more than a few files, use `tool/test.dart`, which is also what CI runs:
+
+```bash
+dart run tool/test.dart                                  # all of test/
+dart run tool/test.dart test/widgets test/views          # some paths
+dart run tool/test.dart -- --reporter expanded --coverage
+```
+
+Plain `flutter test` compiles each file into its own program and starts an engine for it, one file after another, and
+that dominates a full run: 329 files took 128 s on a 12-core Mac with at most four running at once. `tool/test.dart`
+imports the files into 32 generated entrypoints under `.dart_tool/test_bundles/` and runs those with one worker per
+core: about 60 s for the same run, and 67 s instead of 180–213 s with `--coverage`. Files in one entrypoint share an
+isolate, so a test can see state a file before it left behind; the script runs every file that failed there again on
+its own, lets that run decide, and names the files that only failed together. See the Shared Test Isolate section of
+`rules.md` before fixing one.
+
+`plugins/setup/setup_hooks/` is a pure Dart package and is tested with `dart test` from its own directory, which is
+also what CI runs; `tool/check_plugins.sh` does not descend into it. It must stay out of `flutter test`, because a test
+run of `plugins/setup` would execute the build hook itself.
+
+Native plugin code under `plugins/*/{linux,macos,windows}` is compiled by the CI `desktop` job, which runs
+`flutter build <platform> --debug` on every branch push, and by the release matrix on a tag; `tool/check_plugins.sh`
+only analyzes and tests the Dart side.
+
+Root `flutter test` only discovers the root package's `test/` directory by default. Include bundled plugin Dart tests by passing paths explicitly, or run `flutter test` from that plugin package directory, or run `bash tool/check_plugins.sh` to analyze and test every plugin package the way CI does. Native plugin tests under platform folders are not run by `flutter test`.
+
+For the current Core/service architecture, useful focused checks are:
+
+```bash
+flutter test test/core/desktop/
+flutter test test/core/service_test.dart
+flutter test test/core/protocol_contract_test.dart
+flutter test test/manager/core_manager_test.dart
+flutter test test/providers/action_test.dart test/providers/system_action_test.dart
+flutter test test/widgets/core_status_button_test.dart
+```
+
+What those suites own:
+
+- `test/core/desktop/`: replaceable IPC transport, RPC request correlation/failure, direct/Helper process leases, and
+  latest-intent desktop lifecycle convergence. `ipc_native_test.dart` runs the transport over a real socket through
+  the Rust `IpcServer`; the server's own behavior is covered by `cargo test` in `plugins/rust_api/rust`.
+- `test/core/service_test.dart`: `CoreService` composition and terminal close behavior.
+- `test/core/protocol_contract_test.dart`: shared Dart/Go method and event-envelope compatibility, including event batches.
+- `test/providers/action_test.dart`: Core start/restart orchestration and overlapping restart requests.
+- `test/providers/system_action_test.dart`: ordered, idempotent exit cleanup and watchdog behavior.
+- `test/widgets/core_status_button_test.dart`: 600-millisecond connecting presentation hold, immediate failure display,
+  long-running connecting state, and disconnected restart.
+
+## Native Component Verification
+
+The CI Go-wrapper checks can be reproduced without CGO, the Android files included:
+
+```bash
+cd core
+CGO_ENABLED=0 go test .
+CGO_ENABLED=0 go vet . ./cmd/...
+GOOS=android GOARCH=arm64 CGO_ENABLED=0 go vet -tags=with_gvisor . ./mobile ./tun ./platform
+```
+
+The Windows Helper's loopback/session protocol tests are host-independent by default. Windows CI additionally enables its
+service implementation:
+
+```bash
+cargo fmt --manifest-path services/helper/Cargo.toml -- --check
+cargo test --manifest-path services/helper/Cargo.toml
+cargo test --manifest-path services/helper/Cargo.toml --features windows-service
+```
+
+The last command requires Windows for meaningful service coverage. Native Android lifecycle edits should at minimum
+compile the modules they touch, with the JDK 17 that CI installs. On macOS the Homebrew `openjdk@17` keg is not
+registered with `java_home`, so export it by prefix:
+
+```bash
+cd android
+export JAVA_HOME="$(brew --prefix openjdk@17)/libexec/openjdk.jdk/Contents/Home"   # elsewhere: any JDK 17
+./gradlew :core:compileDebugKotlin -Ptarget-platform=android-arm64   # builds the gomobile AAR for one ABI
+./gradlew :service:compileDebugKotlin
+./gradlew :app:compileDebugKotlin
+```
+
+Always-on VPN entry, system VPN revoke, actual permission UI, and rapid device start/stop still require Android device or
+emulator validation; Kotlin compilation cannot prove those system callbacks.
+
+## Changelog And Release
+
+The changelog is derived from Conventional Commits by `tool/changelog.dart` and written to two committed files:
+`CHANGELOG.md` for readers and `changelog.json` for the renderers. See `.agents/rules.md` for the `Changelog:` trailers
+that decide the wording.
+
+The app ships no changelog of its own. `render release` appends the released version as JSON inside an HTML comment
+(`<!-- flclash:changelog:json … -->`), so the release body GitHub already returns to `checkForUpdate` carries the
+notes shown in the update dialog. `parseReleaseChangelog` reads that block and falls back to the English
+bullets when a release predates it.
+
+```bash
+dart run tool/changelog.dart verify                  # what CI checks
+dart run tool/changelog.dart release --version 0.8.96
+dart run tool/changelog.dart build --unreleased      # changelog.json only, includes untagged work
+dart run tool/changelog.dart render release --out release.md
+dart run tool/changelog.dart render telegram --out telegram.md
+```
+
+Releasing a stable version, in order:
+
+```bash
+tool/bump_version.sh all
+dart run tool/changelog.dart release --version 0.8.96
+git commit -am "chore(release): v0.8.96"
+git tag v0.8.96
+git push origin main && git push origin v0.8.96
+```
+
+Push the tag by name. Every release tag here is lightweight, and `--follow-tags` carries annotated tags only: it skips a
+lightweight one silently, so the branch lands, the tag does not, and the release workflow never fires.
+
+`tool/release.sh` drives both paths so the ordering below cannot be got wrong by hand. It resolves the version (bumping
+the patch when pubspec still names an already tagged one), prints the notes the tag would ship, and only pushes with
+`--push`:
+
+```bash
+tool/release.sh pre --dry-run     # plan and notes, changes nothing
+tool/release.sh pre --push        # bump, tag vX.Y.Z-pre.N, push
+tool/release.sh stable --push     # changelog, chore(release) commit, tag, push
+```
+
+The release commit comes before the tag on purpose: the generated wording is reviewable in the diff before it ships, and
+the tag is what `render release` reads. CI never writes back to the repository; it only runs `verify`. Wording in
+`changelog.json` may be edited by hand as long as no derivable entry disappears and every entry still points at a commit
+inside that version's range.
+
+Entries at or below `v0.8.96` are frozen: they predate the pipeline, live under the `<!-- changelog:frozen -->` marker
+in `CHANGELOG.md`, and are never regenerated.
+
+`verify` compares a version only when its tag is reachable from `HEAD`, because that is the same scope the builder walks
+(`git tag --merged`). A branch cut before the newest release cannot derive that version at all, so `verify` names it as
+skipped and moves on instead of reporting drift that does not exist. Checking mere tag existence is what made every such
+branch fail on an unrelated release.
+
+Prerelease tags (`v0.8.96-pre.N`) skip the release commit, and CI renders their notes with `build --unreleased` for the
+Telegram post. They publish no GitHub release, so the update dialog never sees them. `build --unreleased` reads the
+version from `pubspec.yaml` rather than the tag, so the patch has to be bumped before the first `-pre.N` of a cycle:
+while `v<pubspec version>` is still tagged it refuses to collect anything and the release job fails.
+
+### Website
+
+`site/` is the GitHub Pages site: a static page that renders `CHANGELOG.md` and the download links in the browser, and
+works as is for local previews. `tool/build_site.sh [dir]` assembles it with the preview images, the app icon,
+`CHANGELOG.md` read at the latest release tag, and a `release.json` of asset names, sizes and digests fetched through
+`gh`. Without `gh` access the page falls back to the newest version in `CHANGELOG.md` and lists the files without sizes.
+It then runs `tool/render_site.mjs` (Node), which writes the English page and a `zh/` copy for search engines: page
+text, the first changelog releases, canonical and `hreflang` links, JSON-LD and `sitemap.xml`, all from the strings,
+changelog parser and release markup in `site/assets/shared.js`, plus the GitHub star count from `release.json` so the
+nav does not grow when the page loads. `SITE_URL` overrides the published URL these point at.
+On the built site each URL keeps its language: the language button links to the other page and carries the section in
+view, the chosen platform and the changelog search. Only the English root sends readers who chose or prefer Chinese on
+to `zh/`, unless its URL carries `?lang=en`: the button on `zh/` links there with it, so getting back to English never
+depends on browser storage. A project site cannot serve the `robots.txt` that would announce the sitemap, so submit
+`sitemap.xml` in Google Search Console and Bing Webmaster Tools once.
+
+```bash
+tool/build_site.sh && python3 -m http.server -d build/site
+```
+
+The page's look is deliberate: low-saturation flat colour, no blur, glow, glass or soft shadow, and motion that follows
+the logo's 30° lattice. `site/assets/field.js` draws the hero's capsules on that lattice with the glyph's own
+proportions, and the slanted wipes, the dot-to-bar marks and the theme transition reuse the same angle. Text that sits
+inside the hero has to be listed in `wireField` in `app.js`, or the capsules run behind it.
+
+`.github/workflows/pages.yaml` deploys it after every successful stable tag build and on pushes to `main` that touch the
+site, in the public repository only; its Pages source has to be set to GitHub Actions once. The file names come from the
+release matrix in `build.yaml`, so a renamed artifact needs the same change in `buildsFor` in `site/assets/app.js`.
+
+## Verify
+
+In the public repository every branch push runs the `dart` job; in the private
+`origin` every check job runs only when started by hand (`workflow_dispatch`).
+The `dart` job performs these root-package checks in order:
+
+```bash
+bash tool/hooks/test.sh
+flutter pub get
+dart format --output=none --set-exit-if-changed lib test tool plugins setup.dart
+flutter analyze --no-fatal-infos
+dart run tool/changelog.dart verify   # main and tags only
+flutter test --reporter expanded --coverage
+dart run tool/check_coverage.dart coverage/lcov.info 75
+```
+
+`tool/hooks/` holds the scripts the git hooks run, and `tool/hooks/test.sh` runs every `*_test.sh` beside them, so a
+new hook script needs only its test file next to it, not a workflow step.
+
+Run `flutter analyze` before committing; CI fails on anything it reports.
+
+Release builds run only for `v*` tag pushes; pull requests trigger nothing.
+Root analysis excludes `plugins/**`, and root tests do not discover nested
+plugin packages, so parallel jobs validate the rest from their own package
+directories: `plugins` (local Flutter packages and the setup build tool), `go`
+(the Core wrapper, plus a vet of the Android files), `android` (JVM unit tests
+for `:common`, `:service` and `:app`, with the Flutter compile tasks excluded
+and the gomobile AAR built for one ABI), `rust` (both crates), and a
+Windows runner for the helper's `windows-service` feature. On branch pushes a
+`desktop` job also compiles a debug build per desktop platform; a tag skips it,
+since its release matrix compiles the same native code. Release builds run only
+in the public repository and start alongside the checks; `upload` publishes
+only once every build and every check job passes.
+
+`bash tool/check_plugins.sh` is that plugin gate, and CI runs the same script.
+It discovers every `plugins/*/pubspec.yaml`, analyzes each package, and runs
+`flutter test` wherever `test/*_test.dart` exists. Adding a plugin package needs
+no workflow edit; enumerating packages by hand in the workflow is what
+previously left `plugins/tray` unanalyzed and untested.
+
+### CI Caches
+
+A run restores only cache entries saved on its own branch or tag, or on the default branch (`main`), and the
+repository holds 10 GB before evicting the least recently used entries. Every release is a new tag that no later run
+reads from, so `BRANCH_CACHE` turns caching off in tag runs: one release used to write about 9 GB of such entries and
+evict everything `dev` had saved. Release builds therefore start cold; branch runs, chiefly `dev`, keep the caches.
+
+- setup-go keys its entry on the `cache-dependency-path` files alone and saves only on a miss, so jobs listing the
+  same files share one entry holding the build cache of whichever finished first. `desktop` and `android` each add
+  the file that drives their Core build to get an entry of their own.
+- setup-gradle writes only on the default branch unless told otherwise, so `android` lets `dev` write as well. Its
+  entries are keyed by job, which is one more reason the release build gains nothing from caching.
+
+## Worktree Tooling
+
+```bash
+bash tool/worktrees.sh list       # every worktree with owner tool and dirty/clean state
+bash tool/worktrees.sh prune      # remove clean worktrees; add --force to drop dirty ones too
+```

.agents/flutter-upgrade.md

@@ -0,0 +1,103 @@
+# Flutter Upgrade Checklist
+
+Read this before changing `FLUTTER_VERSION` in `.github/workflows/build.yaml` or `.fvmrc`. Each entry is a
+workaround tied to a Flutter bug: what it does, where it lives, and what has to be true before it can go. Remove an
+entry together with its workaround; add one whenever a new workaround is pinned to the SDK.
+
+## Stable cadence
+
+Flutter ships a stable release about once a quarter, three minor versions apart (3.41 in February, 3.44 in May, 3.47
+in August 2026). The two minors in between (3.48, 3.49) are beta only, so a fix that lands on `main` reaches stable
+in the next multiple, 3.50, expected around mid-November 2026. Hotfix releases (3.47.x) carry only cherry-picks
+listed in the SDK's `CHANGELOG.md`.
+
+## Impeller disabled on Intel macOS release builds
+
+- **Bug:** [flutter/flutter#191538](https://github.com/flutter/flutter/issues/191538). From 3.47, when Impeller
+  became the default desktop renderer, Intel (x86_64) Macs flicker across the whole window while scrolling or
+  animating, and text can render garbled. Apple Silicon is not affected.
+- **Fix upstream:** landed on `main` before 2026-08-25 and verified on `3.48.0-1.0.pre-404`; it is not in any
+  3.47.x hotfix (checked through 3.47.6).
+- **Workaround:** the release job for `macos-15-intel` (`arch: amd64`) runs
+  `plutil -replace FLTEnableImpeller -bool NO macos/Runner/Info.plist` before `dart setup.dart`, so only the Intel
+  DMG falls back to Skia. The checked-in `Info.plist` does not set the key, so local builds and the arm64 DMG keep
+  Impeller. The macOS embedder reads the key at launch in `FlutterDartProject.mm` (`enableImpeller`), release
+  builds included.
+- **Side effect:** Skia on Intel renders blur, shadows and text slightly differently; judge Intel-only visual reports
+  against Skia, not Impeller.
+- **Remove when:** `FLUTTER_VERSION` moves to a stable that contains the fix (3.50 or later, or a 3.47.x whose
+  changelog lists #191538). Before dropping the step, build the Intel DMG without it and scroll the proxies and
+  dashboard pages on an Intel Mac with its integrated GPU driving the built-in display; an external display can
+  switch to the discrete GPU and hide the flicker.
+
+## Wrong-size back buffer on macOS
+
+- **Bug:** [flutter/flutter#185394](https://github.com/flutter/flutter/issues/185394). `removeSurfaceForSize:` in
+  the macOS engine's `FlutterSurfaceManager.mm` hands out the youngest idle cached surface without checking its size.
+  When the window flips between sizes while the window server still holds the previous surface, which dragging a
+  window edge back and forth does, a request for one size gets a surface of another. Impeller's Metal texture then
+  disagrees with its descriptor, the render target drops it, and `Canvas::SetupRenderPass` dereferences a null
+  texture on the raster thread. Debug builds log `The texture and its descriptor disagree about its size` and
+  `Store action needs resolve but no valid resolve texture specified` first; release builds just crash.
+- **Fix upstream:** [flutter/flutter#192522](https://github.com/flutter/flutter/pull/192522), still open; 3.47.6
+  ships the same `FlutterSurfaceManager.mm` as 3.47.4.
+- **Workaround:** `BackBufferCacheGuard` in the `window` plugin's
+  `macos/window/Sources/window/BackBufferCacheGuard.swift`, installed from `WindowPlugin.register`, replaces
+  `-[FlutterBackBufferCache removeSurfaceForSize:]` at runtime and answers nil when the cached surface is not the
+  requested size, so the engine allocates a new one. It does nothing if the engine no longer has that class or
+  selector.
+- **Remove when:** `FLUTTER_VERSION` moves to a stable that contains #192522 (check the SDK `CHANGELOG.md` for a
+  3.47.x cherry-pick). Before dropping it, run a debug build without the guard on that SDK and drag a window edge
+  back and forth for a minute; neither validation line may appear.
+
+## Windows view visibility forwarded by the runner
+
+- **Bug:** the Windows embedder's `WindowsLifecycleManager` counts the Flutter view as a window of its own and keeps
+  it visible until the view is sized to zero. Hiding the top-level window never resizes the view, and the `window`
+  plugin keeps it sized while minimized, so the app was never told `hidden`: animations kept rendering in the tray
+  and `appVisibleProvider` stayed true.
+- **Workaround:** `WindowPluginForwardVisibility` in the `window` plugin's
+  `windows/include/window/window_plugin_runner.h` hands the top-level window's `WM_SHOWWINDOW` and `WM_SIZE` to
+  `ProcessExternalWindowMessage` for the view's HWND, so the view shows and hides with its window.
+  `FlutterWindow::MessageHandler` in `windows/runner/flutter_window.cpp` calls it before `HandleTopLevelWindowProc`;
+  the Flutter runner template has no such call, so keep it when regenerating the runner.
+- **Remove when:** the engine hides the view together with its top-level window. Check with the proxy running and
+  the window focused: hiding it to the tray and minimizing it must each log `AppLifecycleState.hidden`.
+
+## macOS activation resumes a hidden window
+
+- **Bug:** `handleWillBecomeActive` in the macOS engine's `FlutterEngine.mm` resumes when any window in
+  `NSApp.windows` is visible, and the tray's `NSStatusBarWindow` always is. Activating the app while its window was
+  minimized or hidden, such as Cmd-Tab back to a minimized window, reported `resumed`, and the next deactivation
+  `inactive`, so frames ran until the window was shown again.
+- **Workaround:** the `window` plugin observes will-become-active and will-resign-active and, once the engine has
+  answered, sends `AppLifecycleState.hidden` on `flutter/lifecycle` while its window is not visible
+  (`applicationActivityChanged` in `WindowPlugin.swift`). A window brought back without another activation change
+  would then wait on an occlusion notification macOS does not always post, keeping its last frame, so `show` and a
+  deminiaturize hand the state back (`windowBecameVisible`).
+- **Remove when:** the engine ignores status item windows on activation. Check without the workaround: minimize the
+  window, switch to another app, then Cmd-Tab back without restoring it; the log must stay at
+  `AppLifecycleState.hidden`.
+
+## Linux minimize on Wayland reads as inactive
+
+- **Bug:** the Linux engine reports `hidden` for `GDK_WINDOW_STATE_ICONIFIED`, but xdg-shell has no minimized state,
+  so GTK 3 never sets it on Wayland. A minimized window reported only its focus loss, as `inactive`, and kept
+  rendering at the display rate (GNOME 46).
+- **Workaround:** the `window` plugin's Linux `minimize` records the time, and a focus loss within 500 ms of it sends
+  `AppLifecycleState.hidden`. Its `window-state-event` handler is connected after the engine's, so that message
+  follows the engine's `inactive`; the compositor focuses the window when it restores it, which the engine reports as
+  `resumed`. A minimize the compositor starts itself (Super+H, the dock) is not covered.
+- **Remove when:** the Linux engine reports minimized windows on Wayland, which needs GTK 4 or xdg-shell's
+  `suspended` state. Check in a GNOME Wayland session without the workaround: minimizing from the caption button
+  must log `AppLifecycleState.hidden`.
+
+## Liquid glass saves around the transform of a blurring layer
+
+- **Bug:** not filed upstream. On 3.47 Impeller scales a `saveLayer`'s image filter by a transform set inside the
+  layer that is still in effect when the layer is restored. A host's capture shrinks each pane's slot inside the
+  layer that blurs it, so its blur vanished at a quarter scale and spread half again as far at 1.5.
+- **Workaround:** `_LiquidGlassHostLayer._snapshot` sets each slot's transform inside a `save` of its own, and each
+  band's offset, restored before the layer is.
+- **Remove when:** without that `save`, the frosted-pane case of `test/widgets/liquid_glass_host_test.dart` passes
+  under `flutter test --enable-impeller`.

.agents/project.md

@@ -0,0 +1,104 @@
+# Project Context
+
+FlClash is a multi-platform proxy client based on ClashMeta (mihomo), built with Flutter. It supports Android, Windows, macOS, and Linux, using Material You from `material_ui` as the base with Apple's Human Interface interaction conventions layered on top.
+
+## Version Notes
+
+- Flutter stays on the 3.47.x line. Release CI pins 3.47.6 and is the source
+  of truth for release builds; `.fvmrc` and local SDKs may sit on another 3.47
+  patch. The editor in `plugins/code_forge` came from `code_forge` 10.14.0, which
+  needs Dart 3.13.2, so the CI pin cannot go below Flutter 3.47.2.
+- Before moving the pin, walk `flutter-upgrade.md`: it lists the workarounds tied to
+  the current SDK, such as Impeller disabled on the Intel macOS release build.
+- The Dart SDK lower bound in `pubspec.yaml` sets the package language
+  version. `flutter analyze` excludes `lib/**/generated/**`, so a raise is
+  proven by `flutter test`, which parses the generated code, not by analyze.
+
+## Forked Dependencies
+
+One `pubspec.yaml` dependency is pinned to a fork by commit SHA. The fork lives
+under `chen08209`, the same account that owns this repository, so it is
+maintained in-house rather than tracked from a third party: advancing a pin is a
+local decision, and there is no external maintainer to wait on for the patch
+itself. What the fork still waits on is the *upstream* fix that would let the pin
+be dropped entirely, recorded below.
+
+Each entry records what the fork changes and what has to be true before it can go
+back to the published package, so a future upgrade does not have to rediscover it.
+Re-verify a fork by diffing its pub cache checkout against the published version
+of the same number:
+
+```bash
+diff -ru ~/.pub-cache/hosted/pub.dev/<name>-<version> ~/.pub-cache/git/<name>-<sha>
+```
+
+The `window_manager` fork (`chen08209/window_manager`, tag `v0.5.1-flclash.3`)
+was replaced by the in-repo `plugins/window` package; the behaviors it carried
+(work-area maximize with a hidden title bar on Windows, geometry restore on
+re-map on Linux, corner preference, terminate and activate events) live there
+now, see the window plugin section of `architecture.md`.
+
+`launch_at_startup` — `chen08209/launch_at_startup`, version 0.5.1.
+
+- Migrates `win32_registry` from `^2.0.0` to `^3.0.3`, which is a breaking rename
+  across the whole Windows implementation (`Registry.openPath` → `CURRENT_USER.open`,
+  `createValue` → `setValue`, `getStringValue` → `getString`).
+- This one is not optional while it lasts: FlClash depends on `win32_registry: ^3.0.3`
+  directly, and upstream's `^2.0.0` constraint cannot co-resolve with it.
+- Drop the fork when upstream publishes a release that accepts `win32_registry` 3.x.
+
+The `yaml_writer` fork (`chen08209/yaml_writer`) was replaced by
+`lib/common/yaml_writer.dart`. Its key quoting let keys such as `!a`, `'a` or
+`0x1F` reach the Core's yaml.v3 as a parse error or a non-string; a merge key
+`<<` stays plain on purpose, because `package:yaml` keeps it as an ordinary key
+and the Core applies the merge.
+
+The `code_forge` fork (`chen08209/code_forge`) is frozen: its Dart code now lives
+in the in-repo `plugins/code_forge` package and its Rust code in the `editor/`
+module of `plugins/rust_api`, both trimmed to what FlClash uses.
+`plugins/code_forge/README.md` records what was kept and what was removed;
+upstream's MIT notice stays in `plugins/code_forge/LICENSE`.
+
+## Dependency Ceilings
+
+`flutter pub outdated` lists only upstream-held entries, so treat them as
+resolved-until-the-ceiling-moves rather than as debt:
+
+- `intl` is intentionally unbounded (`any`) and `material_color_utilities` is
+  resolved by the Flutter SDK; neither is a bound this repository sets.
+
+The `riverpod` set, `build_runner`, `drift_dev` and `intl_utils` resolve to their
+latest releases. Two are held back:
+
+- `freezed` 4.0.2 needs `analyzer` 14, while `intl_utils` 2.8.16 still requires
+  `analyzer` ^13. It moves once `intl_utils` accepts analyzer 14.
+- `test` 1.32.0 needs `test_api` 0.7.14, and `flutter_test` on Flutter 3.47 pins
+  0.7.12. It moves with the SDK.
+
+When an upgrade fails version solving, record the blocker here with
+what has to change upstream before the pin can move, so the next
+`flutter pub outdated` run does not rediscover it.
+
+`_initDynamicColor` in `lib/bootstrap.dart` reads the `dynamic_color` method
+channel directly and decodes the palette list into a `TonalPalette`, instead of
+going through `DynamicColorPlugin.getCorePalette()` and its deprecated
+`CorePalette` return type. Everything downstream sees `DynamicColorSeeds`, so a
+non-deprecated plugin accessor changes only that one function.
+
+## Build Dependencies
+
+Linux:
+
+```bash
+sudo apt-get install libayatana-appindicator3-dev
+```
+
+Windows:
+
+- GCC and Inno Setup.
+
+macOS:
+
+```bash
+npm install -g appdmg
+```

.agents/rules.md

@@ -0,0 +1,663 @@
+# Rules
+
+These are repository coding and testing conventions. Codex command permission rules belong in `.codex/rules/*.rules`; see `.agents/agent-config.md` before adding those.
+
+## Dart and Flutter Style
+
+The lint set lives in `lint_options.yaml` at the repo root. The root `analysis_options.yaml` and every local plugin under
+`plugins/*` include it, so application and plugin code are held to the same rules. Add or change a rule there, not in an
+individual `analysis_options.yaml`; those files carry only their own `analyzer.exclude` entries.
+
+`lint_options.yaml` enforces these non-default rules:
+
+- `prefer_single_quotes: true`: always use single quotes.
+- `require_trailing_commas: true`: use trailing commas in multi-line argument lists.
+- `sort_child_properties_last: true`: `child:` must be the last named parameter.
+- `avoid_print: true`: do not use `print()` calls.
+- `prefer_const_constructors: true` and `prefer_const_declarations: true`.
+- `prefer_final_locals: true` and `prefer_final_in_for_each: true`.
+- `always_declare_return_types: true`.
+- `only_throw_errors: true`: throw an `Exception` or `Error`, never a bare `String`.
+
+Failures whose whole content is a message meant for the user throw
+`MessageException` from `lib/common/exception.dart`. Its `toString()` is the bare
+message, which is what `globalState.safeRun` surfaces in the dialog, so the
+user-facing text is unchanged from the older `throw someMessage` idiom while the
+throw stays catchable as an `Exception` and carries a stack trace. Assert on it
+with `isA<MessageException>().having((e) => e.message, 'message', ...)`, not on a
+raw string.
+
+### Corner Radius
+
+Rounded corners are superellipses (continuous corners) everywhere, never circular arcs; when a component offers
+both, pick the superellipse. `test/lint/superellipse_corners_test.dart` fails on the circular APIs below in `lib/`. Use
+the superellipse API at each layer:
+
+- Shapes: `RoundedSuperellipseBorder` instead of `RoundedRectangleBorder`.
+- Clips: `ClipRSuperellipse` instead of `ClipRRect`.
+- Container decorations: `ShapeDecoration(shape: RoundedSuperellipseBorder(...))` instead of
+  `BoxDecoration(borderRadius: ...)`; borders move to the shape's `side`, and a `Container` with
+  `clipBehavior` still clips to the shape path.
+- Canvas: `canvas.drawRSuperellipse(RSuperellipse.fromRectAndRadius(...))` instead of `drawRRect`.
+- Ink: `InkWell.customBorder` with an `AppShape` instead of `InkWell.borderRadius`.
+
+Passing `BorderRadius.circular(x)` as the `borderRadius` argument of these APIs is expected — it only
+carries the corner magnitude; the rendered geometry stays a superellipse.
+
+Pills are no exception. `StadiumBorder` joins its round caps to the straight sides with a curvature jump, while
+`AppShape.full`, a superellipse at full radius, blends them, and on a square it renders the exact circle, so it serves
+circles too. Material 3 defaults every button, icon button, segmented button, and search bar to `StadiumBorder`;
+`ThemeData.withAppShapes` replaces that for the button themes, and a local `FilledButtonTheme` or `IconButtonTheme`
+replaces the app's, so merge the ambient `XButtonTheme.of(context).style` into it, as `CommonMinFilledButtonTheme`
+does. `CircleBorder` and `BoxShape.circle` are fine for something that is always square.
+
+APIs that accept only a `Radius`, such as `ScrollbarThemeData.radius`, keep circular corners; supply the superellipse
+with an enclosing clip or shape where it shows. Framework widgets that paint their own circular corners with no shape or
+decoration to override, such as the `Switch` track, are left as Material draws them. Tooltips take theirs from
+`withAppShapes`, which sets `tooltipTheme.decoration`.
+
+### Typography
+
+Text sizes follow Apple's iOS Dynamic Type scale at its default size, on every platform. `AppTextStyle` in
+`lib/ui/typography.dart` holds its eleven styles, `largeTitle` to `caption2`, with Apple's leading and weights, plus two
+steps the scale lacks: `display` for a dashboard figure and `pageTitle` for an app bar. Take one with
+`AppTextStyle.body.of(context)`, pass `emphasized: true` for the scale's emphasized weight (bold for the titles,
+semibold for the rest), and change color or family with `copyWith`; a weight is either regular or emphasized. Text
+sized to the shape it marks, such as a letter scaled to its icon, comes from `AppTextStyle.custom`. The dashboard's
+roles (`DashboardText` in `lib/views/dashboard/style.dart`) are built on the same types. `ThemeData.withAppTypography`
+maps Material's `TextTheme` slots onto the scale so Material components follow it; app code never reads those slots.
+
+App bar titles sit at the leading edge in `pageTitle` on a root page and on any desktop page, at the leading edge in
+`headline` on a pushed page in the mobile view, and in the bar's centre in `headline` on a bottom sheet. A title widget,
+such as the editor's name field, stays at the leading edge. Past a back button a title keeps the bar's action inset
+clear of the button on either side.
+
+`test/lint/typography_test.dart` fails on `textTheme` anywhere in `lib/` but `typography.dart`, and on `fontSize:` or
+`fontWeight:` outside `lib/ui/`, except in the code editor, whose text follows the editor font-size setting.
+
+### Text Field Suggestions
+
+On Android, Flutter maps `enableSuggestions: false` to the visible-password input type, not only to "no suggestions"
+(`TextInputPlugin.inputTypeFromTextInputType` in the engine). Input methods then treat the field as a password: no
+clipboard panel, no Chinese layouts, and on some systems a secure keyboard. With the app's clipboard permission denied,
+that leaves no way to paste a link at all. Only the secret fields, `SecretTextFormField` and `FormRowSecretTextField`,
+ask for a password keyboard; a link, key, rule or regex field that should not be corrected sets `autocorrect: false`
+alone. `test/lint/text_field_suggestions_test.dart` fails on `enableSuggestions: false` or
+`TextInputType.visiblePassword` anywhere else in `lib/`.
+
+### Length Units
+
+Flutter lengths are logical pixels, the unit Android calls dp. Comments, test names, docs and reports give them in dp,
+as in `48 dp`, never px: a reader takes px for physical pixels and misjudges the size by the device pixel ratio. Write
+"physical pixel" in full where the code really works in them, as the hairline snapping in
+`lib/ui/list_row_separator.dart` and the Win32 frame metrics in `plugins/window` do; raster image sizes in
+`tool/` and CSS under `site/` keep px. `test/lint/length_unit_test.dart` fails on a number followed by px in `lib/`
+and `test/`.
+
+CI gates formatting: `dart format --output=none --set-exit-if-changed lib test
+tool plugins setup.dart` runs before `flutter analyze`.
+
+These directories are excluded from analysis:
+
+- `build/**`
+- `lib/l10n/intl/**`
+- `lib/**/generated/**`
+- `plugins/**`
+- the platform runner directories: `android/`, `ios/`, `web/`, `windows/`, `macos/`, `linux/`
+
+## Comments
+
+Comments are part of the code and some of them are load-bearing. What this repository limits is the useless and the
+frequent. Every comment that restates the code devalues the ones carrying real information, until readers skim past all
+of them — a file with three comments that matter is more readable than one with thirty.
+
+The two halves are enforced differently, because only one of them can be counted. Whether a comment is useless is a
+judgment, and it lives in the rules below and in review. Whether comments are too frequent is arithmetic, and
+`comment-density` measures it.
+
+### What a Comment Must Earn
+
+- Write one when it carries something the code cannot: a non-obvious constraint, an upstream or platform behavior being
+  worked around, a reason the next reader would otherwise get wrong, a coupling to a value defined somewhere else.
+- Never restate what the code already says. If the comment and the line below it convey the same thing, the comment is
+  noise.
+- Never narrate. Not what this diff changed, not what the code used to be, not the order you did things in. Version
+  history belongs in git and change rationale belongs in the commit message.
+- Never annotate line by line or statement by statement. A block that seems to need a comment per step needs better
+  names or a smaller decomposition instead — reach for structure before prose.
+- Prefer encoding the intent in structure and naming. A named mixin, type, or method that makes the invariant hard to
+  break beats a paragraph asking the next reader not to break it.
+- Delete commented-out code, stale version notes, and comments that only restate the code, whenever you edit the file
+  that contains them. This does not need approval.
+- These are not comments and are exempt from every rule here, including the density count: analyzer and linter
+  directives (`// ignore:`, `// ignore_for_file:`, `// coverage:ignore`), license and copyright headers,
+  code-generation markers, and comments inside vendored upstream code such as `lib/ui/open_container.dart`.
+
+### Density
+
+`tool/hooks/comment_density.sh` fails a file whose added lines are more than 5% standalone comment lines, ignoring
+diffs under 20 added lines so small edits are never caught. The number is calibrated on this repository's own history:
+healthy changes sit at or under 3.6%, while the core fix that prompted the gate ran 22.4%.
+
+It is a ceiling on frequency, not a target to fill. Do not read `core/`'s inherited mihomo density as a quota either —
+it is forked upstream code, not a house style.
+
+Three gates run the same script, and they do not have equal force. The `PostToolUse` hooks in `.claude/settings.json`
+and `.codex/config.toml` run after the tool and hand offending lines back as feedback; neither can undo the completed
+write. The `comment-density` pre-commit hook fails the commit, and it is the only hard gate that covers every tool.
+Behavior is pinned by `tool/hooks/comment_density_test.sh`, which CI runs through `tool/hooks/test.sh`.
+
+When a change genuinely warrants more, raise the ceiling for that run rather than working around it:
+`COMMENT_DENSITY_MAX=20 git commit`, or `SKIP=comment-density git commit` to step past it entirely.
+
+### Where Knowledge Belongs
+
+A comment is one of three destinations, and often the weakest. Pick by where the constraint would be violated, not by
+how important it feels.
+
+- **Assertable behavior goes in a test.** A test is the only form that cannot drift, because it fails when the behavior
+  it describes is broken. Prefer it over both a comment and a document whenever the fact can be checked in code.
+- **Repository-wide defaults, ownership, and invariants go in `.agents/*.md` or a `.agents/skills/*/SKILL.md`.** They
+  are violated from many files, so they must reach every future agent at session start. A comment in one file cannot do
+  that.
+- **A fact that is true only at one call site, and is not visible from that call site, is the one thing a comment does
+  better than a test or a document.** Its value is being in the reader's line of sight at the moment of the edit.
+  `lib/common/constant.dart` carries one: the delay-test concurrency cap is bound to `delayTestConcurrency` in
+  `core/delay.go`, and whoever changes that number must see the constraint on the same screen. This is the case a
+  comment is for; the bar is that no test and no `.agents/` entry could hold the fact instead.
+
+Both failure directions are real. Moving a local constraint into `.agents/` hides it from the person editing the line;
+leaving a repo-wide policy as a comment reaches only the reader of that one file.
+
+## Core API Safety
+
+- `core/Clash.Meta` is a fork of mihomo, and changes to it are budgeted for features, not repairs. Fixing a bug there is
+  low priority even when the bug is real and the fix is small: every patch is one more thing to carry across an upstream
+  rebase. Solve it on the FlClash side of the boundary and note the mihomo behaviour you are working around. Reach into
+  the submodule only for a feature that has nowhere else to live, or when the problem is one the FlClash patches
+  themselves introduced — and say which of the two it is in the commit message.
+- Do not expose direct filesystem deletion APIs through Core or helper IPC; use
+  a scope-specific cleanup API instead.
+- The desktop IPC socket in `plugins/rust_api` admits a Unix peer only when its effective uid is the app's own or root:
+  the socket lives in `/tmp`, and the Core connects as root whenever it runs setuid for TUN or under the Linux Helper.
+  A launch mode that runs the Core as any other user has to widen `admit` in `ipc/access.rs`, and Windows
+  keeps its identity check on the Dart side, which compares the named-pipe peer PID with the Core it launched.
+- Keep the shared `CoreMethodCall`/`CoreMethodResponse` JSON envelope structurally identical across Dart, Go, the
+  gomobile binding, and desktop IPC. Do not double-encode `arguments`, `result`, or event batches. A response whose
+  `file` is set was spilled to disk; a transport resolves it with `resolveSpilledResponse` before reading `result`.
+- `core/message.go` carries three event queues, and the split is load-bearing: state (loaded, geo-update,
+  route-changed), priority (every other event), and bulk (log, request, DNS). Priority and bulk evict their own oldest
+  entry under backpressure, except DNS, which enters the bulk queue through `enqueueState` so a lookup burst cannot push
+  out the request events the connection list is built from; state uses `enqueueState`, which never evicts, because a dropped `geoUpdate{updating:false}` leaves `isUpdatingProvider` stuck at true in the UI until
+  `UpdatingAction` sweeps it as stale minutes later. Do not merge the tiers or give state eviction semantics. `enqueueState` drops silently on a full
+  queue and must stay that way: reaching it means the host stopped reading, which `logDeliveryError` already reports,
+  and reporting it from the message layer feeds the same batcher.
+- Every method of the callback interfaces in `core/mobile` (`TunHandler`, `ResultHandler`) returns an `error`. gobind
+  clears a Java exception and hands it to Go only for a method that declares one; otherwise the exception stays pending
+  and the next JNI call on that thread aborts the process, so a throw in `protect`/`resolveUid`/`resolvePackage`/
+  `onResult` would crash unrelated code. `core/mobile` turns the error into the answer the system gives when it will not
+  help: `false`, `-1`, or an empty package name.
+- `TunHandler`'s hooks in `core/lib.go` check `callbacks` under `th.mu` before every call. `clear` drops the callbacks
+  while connections may still be resolving, and a call through the nil interface panics on a mihomo goroutine, outside
+  every recovery.
+- The Android bridge resolves an owner in two steps — `ResolveUid` then `ResolvePackage` — because mihomo fills
+  `metadata.Uid` from a procfs lookup that Android Q closed off. Collapsing them back into one call that returns only a
+  package name is what left every connection reporting uid 0, so `UID` rules matched nothing.
+- The desktop delivery path in `core/server.go` must not report failures through `logError`. A log event is published to
+  the log subscriber, batched, and handed back to `send`, so a send failure reported that way feeds itself; use
+  `logDeliveryError`, which writes to stderr and latches until a frame gets through or the next connection is installed.
+  A write that fails without putting a byte on the wire — host backpressure hitting `ipcWriteTimeout`, or a payload above
+  `maxIPCFrameSize` — drops that one frame and keeps the connection: the stream is still framed correctly, and tearing it
+  down here ends the read loop, and with it the Core process. A half-written frame whose write merely timed out is
+  resumed for as long as the stall lasts: Windows Modern Standby suspends the app while the Helper's Core keeps running,
+  so the host can stop draining for hours and still come back, and go-winio reports the expiry as its own `ErrTimeout`
+  rather than `os.ErrDeadlineExceeded`, which is why `send` checks `Timeout()`. The wait has no cap on purpose, and
+  `send` holds `writeMu` throughout, so every other frame — method responses and the single batcher goroutine behind
+  the event queues — waits behind the stalled one. Memory is bounded by the queues; what gives is delivery: the state
+  queue fills and `enqueueState` starts dropping, which is the case the `UpdatingAction` sweep above exists for. Nothing
+  on the Dart side restarts the Core over a stall: `CoreRpcClient` times each pending request out on its own and hands
+  the caller `null` (a `no_response` exception for message methods), and the sweep clears core-scope updating state
+  minutes later. Only a half-written frame that fails outright desynchronizes the stream, and that is the one case
+  `send` closes on.
+- Core method handlers are plain functions that return their answer, registered in the `methodHandlers` table in
+  `core/method.go` through the adapter matching their shape. `dispatchMethodCall` already runs every call on its own
+  goroutine and `handleMethodCall` turns a panic into an `internal_error` answer, so a handler blocks for as long as its
+  work takes and never spawns a goroutine just to answer. Work that outlives the answer goes through `safeGo`, which
+  recovers; a bare `go` puts a panic outside every recovery and kills the process, which on Android is the whole
+  application. The exported Android entry points in `core/lib.go` do not reach `handleMethodCall`, so each one carries
+  its own recovery.
+- A handler fails by returning an `error`: a `*MethodError` travels as it is and anything else under `core_error`. The
+  exception is `withMessage`, for the methods whose result the host reads as a message that is empty on success
+  (`_invokeMessage` in `lib/core/interface.dart`): there a plain error becomes that message and only a `*MethodError`
+  fails the call. Moving a method between the two changes what Dart receives.
+- `dialer.DefaultSocketHook` and `process.DefaultPackageNameResolver` are installed exactly once, by `installHooks` in
+  `core/lib.go`, and never cleared. mihomo checks `DefaultSocketHook` for nil once and dereferences it again when the
+  socket is created (`component/dialer/socket_hook.go`), so clearing it while a dial is in flight calls a nil func
+  value. Stopping the TUN swaps `activeTunHandler` instead.
+- `tunnel.AllProxies()` returns a shared, cached map — never modify it. The cache is invalidated by
+  `invalidateAllProxies` on `tunnel.UpdateProxies` and validated against each provider's `Version()`, so a rebuild
+  costs one read per provider rather than one per proxy. Anything else added to `tunnel/patch.go` that derives from the
+  proxy set needs both signals: the external controller can reload the config through `hub/route/configs.go` without
+  going through FlClash's `applyConfig`, so a hook on the FlClash side alone would miss a profile switch.
+- Core state that mirrors mihomo state goes stale at the next `applyConfig`, which replaces every proxy, provider and
+  rule. Read the tunnel instead of caching a snapshot of it: `lookupExternalProvider` kept one that was rebuilt only
+  when the host asked for the provider list, and the host asks after a successful setup and not after a failed one, so
+  an update ran against a provider the tunnel no longer held — downloading, writing to disk and reporting success
+  against nothing.
+- Selection writes take `selectMu`, not `configMu`. mihomo's `Selector.Set` has no lock of its own, so the writes need
+  mutual exclusion against each other and against `patchSelectGroup` — but not against a whole config apply, which is
+  what `configMu` made a proxy switch wait for, provider downloads included. `patchSelectGroup` takes `selectMu` under
+  `configMu`, fixing the order as `configMu` → `selectMu`.
+- Queueing for the delay-test semaphore and probing the node each get the full timeout in `handleTestDelay`. With one
+  shared deadline, a node that waited behind a saturated semaphore reached `URLTest` with almost nothing left, so a bulk
+  test of a large subscription reported whatever sat at the back of the queue as unreachable.
+- A delay test that the Core does not answer is a fault of the Core or the channel, never a verdict on the proxy:
+  `handleTestDelay` returns within its two timeouts on every path. `asyncTestDelay` therefore returns null instead of a
+  `-1` delay, and `ProxiesAction` leaves the last measurement in place and abandons the rest of the run. Writing a
+  timeout there is what made a reachable node read as unreachable whenever the host deadline beat the Core's.
+- Delay-test progress lives in `pendingDelayTestsProvider`, not as a sentinel value in `DelayDataSource`. A delay of 0
+  used to mean "testing", which let a result and the state of a test overwrite each other and left cards spinning
+  forever when the Core restarted. The run owns its keys and releases them in a `finally`, so nothing depends on a
+  reply arriving; core status leaving `connected` cancels every run in flight.
+- Some constants in `lib/common/constant.dart` mirror the Core and move with it. `delayTimedOutValue` is the `-1` that
+  `core/delay.go` reports for a delay test that ran out of time; any other negative value failed outright.
+  `downloadTimeoutDuration` matches mihomo's `resource.DefaultHttpTimeout`, which bounds the Core's provider downloads
+  end to end. `shareLinkSchemes` are the schemes mihomo's `ConvertsV2Ray` reads, less http(s), which is a subscription.
+- Anything on the mihomo side that is reached from both a user-triggered core method and mihomo's own background
+  scheduler needs its in-flight guard on the FlClash side. `updater.UpdateMMDB` and its siblings have none — only the
+  batch `UpdateGeoDatabases` does — and two concurrent runs close the mmap'd database twice, so `handleUpdateGeoData`
+  claims per resource and `updater.GeoUpdateHook` releases.
+- A failed `applyConfig` rolls the tunnel back to the default config, and that rollback is the whole recovery:
+  `handleSetupConfig` returns the error and stops there. Do not add a teardown on top of it — stopping the listeners
+  takes the app offline over a profile the user can still switch away from, and the error already reaches the host,
+  which is what surfaces the failure (`MessageException` on the Flutter side, the config-error toast on Android). Keep
+  an empty `config.yaml` out of the failure path — it is how the app says "no profile selected", and `loadConfig`
+  resolves it to the defaults.
+- Package `init` in the Android library runs while the `.so` is being loaded, so a panic there takes the application
+  down before it can report anything. `platform/limit.go` arms an fd-pressure probe and degrades to never blocking when
+  it cannot; keep that shape for anything else `init` sets up that correctness does not depend on.
+- No file in `core/` uses cgo: the only C in the Android library is the glue gobind generates during `gomobile bind`.
+  Android-only files take `//go:build android` and desktop-only ones `!android`, so `GOOS=android CGO_ENABLED=0 go vet`
+  checks the Android side without an NDK. Keep it that way; cgo in `core/` puts the NDK back in front of that vet and of
+  `go build ./...` on every developer machine.
+
+## Lifecycle Rules
+
+- Crash recovery is owned by `BootGuard` (`lib/common/boot_guard.dart`), and the signal it acts on is the persisted
+  `BootRecord`, never a crash reporter. The record is stamped `starting` before `startCore` and `running` once
+  `_initApp` finishes, so only a launch that died before reaching `running` is a failed launch — a crash after hours of
+  runtime, or a process the system reclaimed in the background, is not one. `ApplicationExitInfo` can only veto a
+  failure (user stop, low memory, signal, package change), never create one, and its timestamp is consumed through
+  `handledExitAt` so the same exit cannot be counted twice.
+- `BootGuard` is an Android-only mechanism and gates itself: on every other platform `evaluate`, `markRunning` and
+  `markClosed` return without touching preferences. The desktop has no `ApplicationExitInfo` equivalent to attribute an
+  exit, so a bare sentinel there would read a window closed on the disclaimer dialog, or a session ended by shutdown,
+  as a failed launch. Keep the platform check inside the guard; callers in `bootstrap.dart` and `SystemAction` stay
+  unconditional.
+- Recovery is graded: the first failed launch only skips `initStatus`, and `currentProfileId` is cleared only from
+  `crashRecoveryClearThreshold` consecutive failures on. Do not let a single interrupted launch write to the config.
+- Desktop process ownership belongs to `DesktopCoreLifecycle`; do not start/kill `FlClashCore` from providers, widgets,
+  managers, or ad hoc exit callbacks. Acquire and release it through a `CoreProcessLease`.
+- `CoreController.close()` and platform `close()` implementations are terminal and idempotent. Application shutdown must
+  stay centralized in `SystemAction`/`SystemExitCoordinator`.
+- Android start/stop MethodChannel calls are optimistic UI commands. Keep latest-wins arbitration in native
+  `ServiceState`; do not add a Flutter completion callback that creates a second lifecycle owner. What flows back is
+  the revision-stamped `stopped` report, which Flutter mirrors with `setRunning(false)` and never answers with a
+  decision of its own.
+- Android `RunState` is derived in `ServiceStateMachine.publish`; do not assign it from a transition step, and do not
+  add a second "is it running" field beside `ServiceController.runtime`. Every divergence between the tile and the
+  service so far came from a copy that one path forgot to update.
+- Android service callbacks are not automatically user intent. Route explicit Quick Settings, Always-on VPN, and revoke
+  actions through `ServiceState` and keep `ServiceController` as the sole binding/run-time owner.
+- Every `BroadcastReceiver.goAsync()` path must finish its `PendingResult` exactly once. A watchdog may release the
+  broadcast lease, but must not cancel, reverse, or otherwise redefine the service operation.
+- Anything that probes through the outbound route is a `RoutedProbe` judged against `routeTrackerProvider` (Route
+  Consistency in `.agents/architecture.md`); the Core stamps every answer and publishes its picks, so do not add a
+  change signal, a trigger counter, or a `coreStatusProvider` watch of your own.
+- Presentation smoothing such as `CoreStatusButton`'s connecting hold must remain local display state. It must not delay or
+  overwrite `coreStatusProvider`, and a real failure must bypass/cancel the hold immediately.
+- Safe mode (`SAFE_MODE` define, see the safe mode section of `.agents/architecture.md`) is consulted by each host
+  integration at its owner, never by rewriting the user's settings. `safeModeBuild` is for handles created before the
+  container exists; everything else reads `safeModeProvider` so a test can override it.
+- `Tray.hide()` is idempotent on all three desktop platforms and returns native state to "`show` was never called".
+  `AppTray.shutdown()` latches, so no later `update()`/`updateTitle()` can resurrect the icon once shutdown begins.
+  Keep it that way; a resurrected icon outlives `exit(0)` as a Windows ghost icon, because `setPreventClose(true)`
+  means `WM_DESTROY` never runs.
+- The `tray` plugin owns call ordering, idempotency, serialization, and unchanged-payload suppression. Application code
+  declares desired state through one `Tray.show(TraySpec)` call and must not add platform branches to work around
+  ordering. Platform branches in `lib/common/tray.dart` are only for deliberate product differences (macOS speed title
+  and group submenus); query `Tray.instance.capabilities` for ability differences.
+- Every native `show` returns whether the tray accepted the payload, and reports `false` instead of showing a broken
+  icon. `Tray` caches the payload signature only on `true`, so a rejected `show` is retried by the next update rather
+  than suppressed until restart. Windows accepts a payload the shell refused, as at sign-in, and retries the icon
+  natively until it lands, so `Tray` still treats it as visible and `hide` reaches native to delete an add that may
+  have landed. Any test that mocks the `tray` channel must return `true` from `show`.
+- Reading the Wi-Fi SSID is opt-in work, not ambient state. `ConnectivityManager` reads it only while `excludeSSIDs` is
+  non-empty, because that list is its only consumer through `suspendProvider`, and the read costs a blocking platform
+  call plus a location permission on Android and macOS. A second consumer must widen that gate, not drop it.
+- On Android the `wifi_ssid` permission is only `granted` once `ACCESS_BACKGROUND_LOCATION` is held too (Q+). Fine
+  location alone reads the SSID in the foreground but returns `UNKNOWN_SSID` once the app is backgrounded, which is
+  where on-demand spends most of its time. `getSsid` itself only needs fine location, so the split stays inside the
+  plugin.
+- No `wifi_ssid` implementation may answer `getSsid` on the platform thread. Android resolves through a network callback
+  with a timeout, Linux through `g_task_run_in_thread`, and macOS through `ssidQueue` after checking the location
+  authorization, because CoreWLAN reaches `wifid` over XPC and a wedged daemon would freeze the window. Windows is the
+  outstanding exception: `WlanQueryInterface` still runs inline, since replying off-thread there needs a window-message
+  hop that the plugin API does not provide.
+- The delayed DNS re-check `NetworkObserveModule.onLosing` posts is deliberately left un-deduplicated. The runnable
+  re-reads `networkInfos` and does nothing when `onLost` already dropped the network, `updateDns` calls into the Core
+  only when the resolved list or the preferred network changed, and `stop()` clears the handler queue, so a network that
+  reports `onLosing` repeatedly costs two comparisons per event. Holding the pending `Runnable` to `removeCallbacks` it changes no behaviour and adds
+  state that has to stay in sync with the map.
+
+## UI Isolate Work
+
+Everything the UI isolate runs synchronously shares a frame with build, layout and paint: 16 ms at 60 Hz, 8 ms at
+120 Hz. Computation may take as long as it needs anywhere else, so this rule is about where work runs, not how much of
+it there is.
+
+- Work that grows with the user's data (profiles, rules, proxies, groups, dialers, icons, connections) and can take
+  more than about 8 ms on the largest data the app expects runs in an isolate, through `compute` or `Isolate.run`.
+  Thousands of rules or proxies and hundreds of groups are in that range. `makeRealProfileTask` in
+  `lib/common/task.dart` and the backup tasks in `lib/common/backup.dart` are the existing shape.
+- Make the algorithm linear or cached first. Work superlinear in that data, such as a walk of the whole graph per
+  item, a scan of every group per group, or a list copy per inserted element, is a defect on any isolate; moving it
+  only hides the cost until the data outgrows the move.
+- Sending data to an isolate copies it on the sending isolate, so hand the task the smallest input it reads. A value
+  the UI reads synchronously, such as a sync provider watched in `build`, becomes an async provider with a loading
+  state rather than a blocking call.
+- drift runs SQL on its own isolate but maps rows into models on the caller's, so a watched query over a large table
+  costs the UI isolate on every emission, and any write to that table makes it emit again.
+- Bounded work stays where it is: a provider recompute that reuses a cache, a single-item update, a search filter over
+  a list sized for scrolling.
+- Decide on measurements taken at the expected maximum. A `flutter test` probe that counts provider recomputes, times
+  the provider body and hooks `debugOnRebuildDirtyWidget` shows what reruns and how it scales; its JIT timings are not
+  device numbers, so a case near the line is settled with a profile build. No gate checks this rule.
+
+## Testing Rules
+
+The `core/` directory is excluded from automated coverage accounting. Do not add coverage instrumentation or coverage
+collection for code under `core/`. CI still runs `CGO_ENABLED=0 go test .` and `go vet .` to compile/check the Go wrapper,
+plus a `GOOS=android` vet that covers the `android` files the first two exclude; verify cross-language
+protocol behavior through shared Dart contract tests under `test/core/` and native platform build checks.
+
+A Go test in `core/` that reaches `sendMessage` — directly, or through `handleStartLog` or `updater.GeoUpdateHook` —
+leaves events in the process-wide batcher, which flushes them up to `messageBatchInterval` later into whichever
+connection `captureFrames` has installed by then. Either keep the event out of the batcher or end the test with
+`settleMessageBatcher`. That batcher runs for the whole test binary and reads `conn` under `connMu`, so install a test
+connection with `swapConn`; a bare assignment races every event it happens to be delivering, and `go test -race` catches
+it in an unrelated test.
+
+Register fallback values for freezed params used with `any()` matchers.
+
+`tool/check_coverage.dart` enforces a total floor passed by CI plus per-group floors declared in `_groupFloors`. Raise a
+group's floor when new tests lift it; do not lower one to make a run pass.
+
+Every measured group needs a floor. A group the report measures but `_groupFloors` does not declare fails the run, so
+adding a top-level directory under `lib/` means adding its floor in the same change. Set a new floor at or just below
+the coverage the directory actually has; the point is to stop a slide, not to backfill tests before the directory can
+land.
+
+Prefer `coreHandlerProvider.overrideWithValue(CoreController.scoped(fake))` over `CoreController.test(fake)` in new and
+touched tests. `CoreController.test` claims the process-wide singleton, which makes a global read and a provider read
+resolve to the same fake, so it cannot fail on a call site that still reaches for the global. A test that does claim
+the singleton calls `CoreController.resetInstance()` in `tearDown`. It also only reaches the global `coreController`
+when nothing has read it yet: that is a top-level `final`, bound to whichever instance existed at the first read, which
+in a shared isolate is another file's.
+
+### Shared Test Isolate
+
+`tool/test.dart` imports many test files into one entrypoint, so process-wide state outlives the file that set it, and
+every file's `main()` runs before any test of the entrypoint does. Keep `main()` to declarations and
+`TestWidgetsFlutterBinding.ensureInitialized()`: a mock installed there is replaced by the next file's before a test
+sees it. Set up what the tests need in `setUp` or `setUpAll` instead, from the helpers that rebind the singletons:
+
+- `appPath` resolves its directories once per process. Point them at a test's directory with `await useAppPaths(dir)`
+  from `test/helpers/app_paths.dart`, not with a `PathProviderPlatform` fake, which only works while nothing has asked
+  `appPath` yet.
+- `preferences` opens its store once per process. Use `await mockPreferences(values)` from
+  `test/helpers/preferences.dart` rather than `SharedPreferences.setMockInitialValues` alone, which leaves `preferences`
+  on the store it already opened.
+
+Both cache the resolved value, not the future that produced it. A future completed in one test's fake-async zone runs
+its listeners in that zone, so a later test that awaits it never resumes. Await the helpers outside `testWidgets`
+bodies for the same reason.
+
+A test that only passes in a fresh isolate is leaning on a global it did not set up: `database_test.dart` once caught
+its write failures only because `currentAppLocalizations` threw before anything had loaded them. The script reruns such
+a file alone so it cannot fail the run, and lists it; fix it where it reads the global.
+
+Construct the Android lib handler with `CoreLib.scoped(fakeService)`. The `service` global is gated on `Platform.isAndroid`
+and is therefore null on every test host, so a `CoreLib()` built from it silently takes the null-service fallback on every
+path. `CoreLib.scoped` binds an explicit `Service` instead; reset the singleton with `CoreLib.resetInstance()` in `tearDown`.
+
+Three globals in `lib/common` reach real host state and carry a `@visibleForTesting` seam to stand in front of it:
+`AutoLaunch.launcher`, `listNetworkInterfaces` and `LinkManager.uriLinkStream`. Replace the launcher in particular — every
+`enable`/`disable`/`isEnabled` writes the actual autostart entry (a LaunchAgents plist, a `.desktop` file or a registry
+key), so a test that skips the seam registers the test binary on the machine that ran it. `updateStatus` returns early
+under `kDebugMode`, which is always true beneath `flutter test`, so its remaining branches cannot be reached from a test
+at all; `test/common/launch_test.dart` pins the early return instead.
+
+`pumpAndSettle` never returns on a page holding `EditorView` (what `EditorPage` embeds): the code editor blinks its
+caret forever, so frames keep being scheduled. Pump explicitly instead. `encodeYamlTask` and its neighbours in
+`common/task.dart` hand work to a real isolate through `compute`, which only runs outside the fake-async zone, so a test
+awaiting one needs `tester.runAsync(...)` between the pumps.
+
+The `@visibleForTesting` `database` setter in `lib/database/database.dart` deliberately does not close the instance it
+replaces. Tests inject `NativeDatabase.memory()`, which holds no file handle, and `Database.close()` is async while the
+setter is not, so closing there would either be unawaited or force the seam to become async for no gain. A test that
+does open a file-backed database owns closing it.
+
+`system.isAndroid` / `isMacOS` / `isWindows` / `isLinux` read `dart:io` `Platform` and cannot be overridden, unlike
+`debugDefaultTargetPlatformOverride`. A branch behind one of them is only ever exercised on a host that matches it, so CI
+(`ubuntu-latest`) and a macOS working copy measure different coverage for the same test. Assert host-agnostic behavior,
+and leave headroom under a group floor that covers such a branch.
+
+A platform decision that drives layout takes `isDesktop`/`isMacOS` as parameters and reads `system` only at the call site,
+so every platform's outcome is reachable from one host. `getWindowHeaderHeight` and `showsWindowHeader` in
+`lib/common/layout.dart` own the window header rule for both `WindowHeaderContainer` and `overlayTopOffset` — they must
+agree, or the content is offset by a header that is not there. `WindowHeaderBar` takes its height and slots as arguments,
+which is what lets `test/manager/window_header_test.dart` measure the Windows caption bar on a macOS host.
+
+A `Stack` under loose constraints sizes to its non-positioned children, and falls back to `constraints.biggest` only when
+it has none — so a bar that fills the window must keep every slot positioned. One non-positioned child is enough to
+collapse `WindowHeaderBar` to that child's width: the macOS title did exactly that, leaving the app name over the traffic
+lights and the raw window painted black beside it, while Windows, whose slots are all positioned, stayed correct.
+`WindowHeaderLayout` positions the header across the top for the same reason, and the macOS group asserts the bar's
+width, not just its height — a height-only assertion cannot see this.
+
+The same seam carries the two other places a platform decision changed what was built: `AppTray` holds `isMacOS`/
+`isWindows` as state — `AppTray()` fills them from `system`, `AppTray.forPlatform` is the test seam — and `OnDemandView`
+takes nullable `isAndroid`/`isMacOS` that fall back to the host. Every test names the platform it means, because
+`debugDefaultTargetPlatformOverride` does not move `system` and a suite that leaves it to the host asserts the macOS
+shape on a developer machine and the Linux one on CI. `WindowHeaderContainer` builds the caption buttons on every
+non-macOS host, so a test mounting it needs `TestApp` for `AppLocalizations` and a `window` channel mock that
+answers `isMaximized`/`isAlwaysOnTop` with a bool.
+
+Auto-dispose providers need a container-level hold before a test reads them back. `proxyGroupProvider`, `ruleProvider`,
+`itemsProvider` and friends mix in `AutoDisposeNotifierMixin`, so a `container.read` that no widget is currently watching
+rebuilds the provider from its override and silently discards whatever the code under test wrote. Add
+`container.listen(theProvider, (_, _) {})` in the harness, as `test/providers/action_test.dart` does for `scriptsProvider`.
+
+A field that constructs its own `ValueNotifier`, `TextEditingController`, `ScrollController`, `FocusNode`, `TabController`,
+`PageController`, `AnimationController` or `StreamController` must be released in the same file.
+`test/lint/disposable_field_test.dart` enforces this by scanning `lib/`, because no lint covers it: `close_sinks` only sees
+sinks, and nothing in the standard set tracks `ChangeNotifier` disposal. A field that genuinely outlives its owner goes in
+that test's `_allowed` set with the reason, not left bare. Controllers received as widget parameters belong to the caller
+and are out of scope.
+
+An `IconButton` whose icon is an icon needs a `tooltip`. It is the button's only accessible name — without it TalkBack and
+VoiceOver announce nothing and the desktop build shows no hover hint. `test/lint/icon_button_tooltip_test.dart` enforces
+it and skips exactly two shapes: an `icon:` holding a `Text`, which is already a visible label, and
+`views/dashboard/widgets/core_status_button.dart`, which takes its label from an enclosing `Tooltip` (a second test fails
+if that wrapper disappears). Reuse an existing string before adding one; a label that depends on state goes on the button
+inside the `ValueListenableBuilder`, not outside it, or the tooltip cannot follow the icon. A row of window buttons hidden
+behind `system.isMacOS` is unreachable from a macOS test host, so extract it — `WindowHeaderActions` is the pattern.
+
+A tooltip needs an `Overlay` ancestor at build time, not at hover time: `RawTooltip` builds an `OverlayPortal`, so a
+button whose `tooltip` has nowhere to go throws "No Overlay widget found" and takes its whole subtree down with it.
+Everything `buildManagerStack` wraps around `MaterialApp.builder`'s child sits *above* the app Navigator and therefore
+above the only Overlay in the tree. A manager that renders a tooltip — `WindowHeaderLayout` and its caption buttons are
+the case that broke Windows while macOS, which renders a bare title there, stayed clean — hosts its own with
+`Overlay.wrap`, spanning the window so the tooltip is not clipped to the widget that owns it. A test only reproduces this
+by mirroring that topology: build the widget from `MaterialApp.builder`, never from `home:`.
+
+A public top-level declaration that nothing outside its own file references is dead, and no lint catches it:
+`unused_element` covers only private ones, and a barrel `export` keeps a dead file compiling and off every
+"unused import" report. `test/lint/dead_file_test.dart` scans `lib/` for files whose declared names — types plus the
+`final appPath = AppPath()` singletons next to them — appear nowhere else, counting generated code as a consumer (a
+riverpod notifier is reached through its generated provider) and barrels as neither. Files publishing only extensions or
+typedefs are skipped: those are reached through the types they attach to, never by name.
+
+`CommonScaffold` adds the height of its docked search to `BottomInsetScope` around its body, so a page that reads
+`BottomInsetScope.of(context)` with the context it builds the scaffold from gets the inset without it, and the end of
+its content stays under the search field. Read it below the scaffold,
+inside `body: Builder(builder: (context) => ...)`. `test/lint/scaffold_bottom_inset_test.dart` enforces this by
+scanning `lib/`.
+
+Every reorderable list builds its drag proxy with `commonProxyDecorator`, which tells `DecorationListItem` it is lifted:
+the row drops its separator and rounds from its corners in the run to a card of its own as it lifts, and back as it
+drops. A list without it lifts a middle row with square edges. `test/lint/reorder_proxy_decorator_test.dart` enforces
+this by scanning `lib/`.
+
+A `State.dispose()` override must not await before `super.dispose()`. `StatefulElement.unmount` calls `dispose()` and then
+immediately asserts that `super.dispose()` already ran, so an `await` defers the call past the assert and every teardown
+throws "`…State.dispose failed to call super.dispose.`" in debug and profile builds. Declare the override as `void
+dispose()` and hand async teardown to `unawaited(...)`; `Future<void> dispose() async` compiles and is the shape that
+invites the bug.
+
+Use `ProviderContainer` directly for simple Riverpod provider tests, released with `addTearDown(container.dispose)`.
+Assert against the provider's generated public API, not its implementation, re-read source defaults before asserting
+them, and wait on provider futures or state changes rather than fixed sleeps. The generated Riverpod `update()` method
+takes a callback:
+
+```dart
+notifier.update((state) => newValue);
+```
+
+When testing freezed models with nested objects, always round-trip through `jsonEncode` and `jsonDecode`. Direct `fromJson(toJson())` fails for nested freezed types because `toJson()` stores child objects directly instead of maps.
+
+For async widgets, put visual cleanup in `finally` when the action may throw. Focused widget tests should cover success,
+failure, disposal, and any timer boundary that changes visible state.
+
+## Running the App Locally
+
+- An agent starts FlClash on the host only as a safe mode build (`--dart-define=SAFE_MODE=true`, see
+  `.agents/commands.md`). A normal build takes over the host network, so the user runs it, never the agent.
+- Never end a FlClash process the agent did not start, and never kill by name (`pkill`, `killall`, a pattern on the
+  executable path): the user's own instance matches too. Record the pid of every process you launch, check with
+  `ps -o pid,command -p <pid>` that its executable is your own build output, and end only that pid.
+- Only a macOS or Android debug build has its own data directory; every other build shares the installed app's data
+  directory and single-instance lock, so it cannot start while the user's instance runs. `.agents/commands.md` lists
+  which builds are kept apart.
+
+## Commit Messages
+
+Subjects follow Conventional Commits and are enforced by the `commit-msg` hook in `.pre-commit-config.yaml`, which runs
+`tool/hooks/commit_msg.sh`:
+
+```text
+<type>[(scope)][!]: <description>
+```
+
+- Types: `feat`, `fix`, `docs`, `style`, `refactor`, `perf`, `test`, `build`, `ci`, `chore`, `revert`.
+- Scope is optional and lower case; use a comma to list several, as in `fix(core,android)`.
+- `!` before the colon marks a breaking change.
+- Descriptions start in lower case, omit the trailing period, and keep the whole subject within 100 characters.
+  Identifiers and acronyms keep their own casing, as in `fix(ui): AppBar text is truncated`.
+- `Merge`/`Revert` subjects and `fixup!`/`squash!` commits are exempt.
+- No `Co-authored-by` trailer crediting a coding agent, whatever that tool's own convention says. The history
+  records who owns the change, not which tool typed it; human co-authors are still fine. The hook rejects the
+  known agent identities.
+
+Write what the change does, not that something changed: `perf(views): stop redoing per-frame work in build`, not
+`Optimize more details`.
+
+Install the hooks once with `pre-commit install --hook-type pre-commit --hook-type pre-push --hook-type commit-msg`.
+
+### Fixup Commits
+
+A follow-up to a change that has not shipped in a stable release goes in as `git commit --fixup=<target>`, aimed at the
+commit that introduced what it amends.
+
+- Only stable tags (`vX.Y.Z`) close a commit. A target reached only by pre-release tags (`vX.Y.Z-pre.N`) is still open
+  for fixups, so do not steer away from it or flag it.
+- A commit a stable tag contains takes no fixup; land the follow-up as a regular commit. Check with
+  `git tag --contains <target> | grep -v -- '-pre'`, which must print nothing.
+- Asking for a fixup means creating the `fixup!` commit only. Do not run `git rebase --autosquash` or otherwise fold it
+  into its target unless the user asks for the squash.
+
+### Changelog Trailers
+
+`tool/changelog.dart` builds the user facing changelog from the commit history, so the trailers below are the copy that
+ships to users. The subject stays the developer facing summary and is only the fallback.
+
+```text
+feat(profiles): support per-profile override script
+
+Changelog: Per-profile override scripts
+```
+
+- `Changelog:` is the English entry. `Changelog: skip` drops the commit from the changelog entirely.
+- The changelog is English only. A `Changelog-<locale>:` or `Breaking-<locale>:` trailer fails the hook, because
+  translated release copy does not belong in the commit history. Translate after the fact if ever needed, not in the
+  commit message.
+- `Changelog-Type:` moves an entry into another group, for example to promote a `refactor` that users will notice. Valid
+  values are `breaking`, `feat`, `fix`, `perf`, `revert`.
+- `BREAKING CHANGE:` is required whenever the subject carries `!`, and its text becomes the breaking entry. A `!` commit
+  therefore needs two lines of copy: the footer for the breaking entry and `Changelog:` for the normal one.
+
+`feat`, `fix`, `perf`, `revert` and breaking commits are collected by default; every other type is dropped unless it
+carries a `Changelog:` trailer. Commits missing a trailer reuse their subject; for `feat`, `fix` and `perf` the hook
+says so without blocking.
+
+## Migrations
+
+An upgrade starts from the last release, not from the previous development build. Before writing a legacy reader, a
+data move, or a test for one, check that the state it reads shipped: `git tag --contains <commit>` on the commit that
+introduced it, or `git show <tag>:<path>` for the file as the release had it. A state that only ever existed between
+two releases gets no migration; a development install holding it may lose that setting or fall back to its default.
+
+A release that resets or rewrites settings, instead of reading their old shape, adds a step to `_upgrades` in
+`lib/common/migration.dart` under the next `upgradeVersion`. A step takes and returns the `Config`, runs once on an
+install that already had settings, and never on a new one. Leave `currentVersion` for changes to the stored format:
+backups carry it, and an older app refuses a backup stamped newer than its own, so bumping it for a reset would strand
+backups between devices on different releases.
+
+The database takes one migration step per release. The newest step in `lib/database/database.dart` has not shipped
+while `schemaVersion` at the last release tag is below its number; a schema change then goes into that step, raising
+`schemaVersion` and the step's condition together so a development install runs the step again, instead of adding a
+step of its own. Every operation in it checks the shape it finds, a missing table or column or a column under its old
+name, so it can run again on a database that went through part of it. Its tests start from the released shape.
+
+## Generated Code
+
+Do not manually edit generated files under:
+
+- `lib/l10n/l10n.dart`
+- `lib/models/generated/`
+- `lib/providers/generated/`
+- `lib/database/generated/`
+- `lib/ui/generated/`
+- `lib/l10n/intl/`
+
+After schema, model, or provider changes, run build generation and include focused tests when behavior changes.
+
+`lib/l10n/l10n.dart` is the one file that still imports `package:flutter/material.dart`.
+`intl_utils` hardcodes that import in its own template, so regenerating rewrites it and
+there is nothing to fix here; `test/lint/design_package_test.dart` exempts the generated
+l10n paths for that reason. It is harmless because the file only needs `Locale`,
+`BuildContext`, `Localizations` and `LocalizationsDelegate`, which the legacy library and
+`material_ui` both re-export from the same `package:flutter/widgets.dart`. Everything a
+human writes takes Material from `material_ui`; `cupertino_ui` is banned outright and
+survives only as a transitive dependency of `material_ui`.
+
+Strings live in `arb/intl_{en,zh_CN,ja,ru,fr,es,ko}.arb` — flat JSON, no `@` metadata. Add a key to all seven, then regenerate with
+`dart run intl_utils:generate`, which rewrites `lib/l10n/`. A key present in only some locales silently falls back to
+English at runtime, so add the translation rather than leaving it out.
+
+Labels for enum values go through the exhaustive switches in `lib/common/l10n_labels.dart`, never
+`Intl.message(<runtime string>)`. A key built from an enum name or a stored string is invisible to the analyzer, and a
+failed lookup returns the key itself, so a stale key ships as `routeMode_config` in the UI rather than throwing.
+`test/lint/dynamic_message_key_test.dart` fails on any `Intl.message(` in `lib` outside the generated code, and checks
+that every locale carries the same keys and has a display name.

.agents/setting-changes.md

@@ -0,0 +1,147 @@
+# Setting Changes
+
+A changed setting takes one of three paths. The path depends on who reads the setting and when it reads it, not on
+which page edits it. Choose the path when you add a setting or move one.
+
+| Path    | Who reads the setting                       | Watched provider                       | Acts                          | Effect                                     |
+|---------|---------------------------------------------|----------------------------------------|-------------------------------|--------------------------------------------|
+| Update  | Core, and Go can change it in place         | `updateParamsProvider`                 | `CoreManager`, automatically  | Patches the running config, no reload      |
+| Apply   | Core, only when it parses a config          | `setupPatchProvider`                   | `CoreManager`, automatically  | Rebuilds the profile and reloads the Core  |
+| Restart | Android service, when it starts             | `vpnOptionsProvider`                   | `VpnManager` asks the user    | Stop and start of the service              |
+
+Update and apply run on their own, debounced. A restart never does: rebuilding the tunnel cuts every connection
+through it, so `VpnManager` only shows a notifier and the user taps its restart action. A setting that only Flutter
+reads takes no path.
+
+## Update
+
+`CoreManager` hands each change of `updateParamsProvider` to `SetupAction.updateConfigDebounce`. `updateConfig` then sends
+`PatchClashConfig.toUpdateParams` to Go's `updateConfig` in `core/config.go`. That function writes the fields into the
+running config and calls the runtime setter for each one, or `updateListeners` for the inbounds. Nothing is re-parsed.
+
+The update path carries these fields:
+
+- From `PatchClashConfig`: `mode`, `log-level`, `mixed-port`, `allow-lan`, `ipv6`, `find-process-mode`,
+  `tcp-concurrent`, `unified-delay`, `external-controller`, `secret`, `geo-auto-update`, `geo-update-interval`,
+  `geox-url`, and the `tun` keys of `Tun.coreJson`: `enable`, `device`, `stack`, and `auto-route`, always on.
+- From other settings: `NetworkProps.authentication`, and `AppSettingProps.checkCertificate`, sent as
+  `skip-cert-verify`.
+
+On desktop, `updateListeners` rebuilds the TUN from the patched `tun`. Enabling TUN may need authorization first. When
+`requestAdmin` gets it newly granted, `updateConfig` restarts the Core instead of patching it. On Android,
+`updateListeners` skips TUN, so a `tun` update reaches the VPN only through a restart.
+
+To move a setting onto this path:
+
+1. Add it to Dart `UpdateParams` and `toUpdateParams`.
+2. Add it to Go `UpdateParams` in `core/protocol.go` and apply it in `updateConfig`.
+3. Reset it in `PatchClashConfig.setupOnly`. If you skip this, every change also reloads the profile. The
+   `PatchClashConfig.setupOnly` test in `test/models/config_test.dart` fails until its fixture changes the field and
+   `setupOnly` resets it.
+4. Keep writing it in `_makeRealProfileTask`, so a full apply hands the Core the same value.
+
+Prefer update whenever Go has a setter for the setting, because an apply reloads the whole config.
+
+## Apply
+
+`CoreManager` answers each change of `setupPatchProvider` with `applyProfileDebounce(silence: true)`. That call
+rebuilds the profile YAML and hands it to Go's `applyConfig` through `setupConfig`. The provider holds three values:
+
+- `PatchClashConfig.setupOnly`: the config with every field that update carries reset to its default.
+- `NetworkProps.appendSystemDns`.
+- `NetworkProps.bypassPrivateRoute` on desktop, where the task adds the private ranges to the TUN's final
+  `route-exclude-address`.
+
+A change to anything else in `PatchClashConfig` therefore reaches it. Today that is the DNS and TUN overrides (`dns`,
+`dnsOverrideKeys`, `tunOverride`, `tunOverrideKeys`), `hosts`, the extra inbound ports (`port`, `socks-port`,
+`redir-port`, `tproxy-port`), the dialer options (`keep-alive-*`, `disable-keep-alive`, `interface-name`, its mode,
+`routing-mark`), `geodata-loader` and `global-ua`. A new `PatchClashConfig` field written by `_makeRealProfileTask` lands here without further work. A value
+the profile build reads from another settings object has to be added to `setupPatchProvider`.
+
+An apply without `force` sends nothing when the md5 of the generated YAML has not changed. A value that only
+`SetupParams` carries never changes the YAML, so this path does not deliver it. `testUrl` is that case: Go's default
+health-check URL follows it only when some other change or a `force` apply reaches the Core.
+
+Profile content does not go through `setupPatchProvider`. `setupStateProvider` reads rules, groups and scripts from the
+database once instead of watching them. Content is applied explicitly by whatever changes it:
+
+- Profile editors call `autoApplyProfile` when they close.
+- Subscription updates, scripts and app-level providers call `applyProfileDebounce`.
+- A profile switch runs `fullSetup`.
+- A start applies again with `force` unless the last apply saw the same inputs (`_inputsApplied`), the `testUrl` and
+  `skipCertVerify` that only `SetupParams` carries included.
+
+## Restart
+
+`VpnService.handleStart` builds the tunnel once from `VpnOptions` and never reads them again.
+`ServiceController.start` uses `enable` to choose between `VpnService` and `ProxyService`.
+
+`vpnOptionsProvider` derives the options the service would start with now. `runningVpnOptionsProvider` records what
+the last listener start handed it. The route list is subtracted in an isolate by `vpnRouteAddressProvider`, which
+reruns only when the route lists or `bypassPrivateRoute` change, so `vpnOptionsProvider` is async: a start awaits it
+before recording, the Android Core awaits it before its first `syncState`, and the shared state keeps the last options
+while new routes compute rather than handing the service an empty list. `SetupAction` owns every start and stop: it
+sets the record on a start and clears it on a stop, on-demand SSID suspension included.
+
+`VpnManager` shows the notifier whenever a change leaves `VpnOptions.effective` different from the recorded options.
+Repeated changes refresh the same notifier instead of stacking new ones. Changing a setting back to the running value
+asks for nothing. The tap runs `SetupAction.restartVpn`: a stop, then a start, and only while a run is up.
+
+| `VpnOptions` field     | Taken from                                                    | The service reads it                   |
+|------------------------|---------------------------------------------------------------|----------------------------------------|
+| `enable`               | `VpnProps.enable`, off in safe mode                           | always                                 |
+| `stack`                | `Tun.stack`                                                   | with the VPN                           |
+| `ipv6`, `dnsHijacking` | `VpnProps`                                                    | with the VPN                           |
+| `allowBypass`          | `VpnProps`                                                    | with the VPN                           |
+| `accessControlProps`   | `VpnProps.accessControlProps`                                 | `enable`, `mode` and that mode's list  |
+| `systemProxy`          | `VpnProps.systemProxy`, off under local auth or safe mode     | with the VPN                           |
+| `port`                 | `PatchClashConfig.mixedPort`                                  | with `systemProxy`                     |
+| `bypassDomain`         | `NetworkProps.bypassDomain`                                   | with `systemProxy`                     |
+| `routeAddress`         | `Tun.routeAddress` and `bypassPrivateRoute`                   | with the VPN                           |
+| `mtu`                  | `Tun`                                                         | with the VPN                           |
+| `congestionController` | `Tun`                                                         | with the VPN                           |
+
+The service never reads the access list's sort and filter fields. `effective` resets them, along with every field
+the table does not mark as read, so changing them does not ask for a restart.
+
+To add a VPN option:
+
+1. Add it to Dart and Kotlin `VpnOptions` and to `vpnOptionsProvider`.
+2. If the service reads it only under a condition, put that condition in `VpnOptions.effective`, which mirrors
+   `ServiceController.start` and `VpnService.handleStart`.
+
+The notifier stays off while nothing runs, during on-demand suspension, in safe mode, and on desktop, where
+`VpnManager` is not mounted. When Flutter reattaches to a service that is already running, it records the current
+options, because the service does not report the options it was started with.
+
+## One Setting, Several Paths
+
+Each path watches its own provider, so a single setting can take more than one of them:
+
+- `mixedPort`: update moves the Core's listener; under the VPN system proxy, the restart notice follows.
+- TUN switch and stack: update rebuilds the desktop TUN. On Android the update reaches no TUN, and the restart notice
+  carries the stack.
+- MTU, congestion control and routes: Android's rows take the restart path; on desktop they are TUN overrides, applied
+  with the profile.
+- `bypassPrivateRoute`: apply on desktop, restart on Android.
+- Local authentication: update applies it to the inbounds. It also switches the VPN system proxy, which needs a
+  restart.
+
+## Choosing The Path
+
+For a new or moved setting, answer each question. More than one answer can be yes.
+
+1. Does the Android service read it when it starts? Then it belongs in `VpnOptions` and takes the restart path.
+2. Does the Core read it, and can Go change it in place? Then it belongs in `UpdateParams` and takes the update path.
+3. Does the Core read it only when it parses a config? Then write it into the generated config, and it takes the
+   apply path.
+4. Does only Flutter read it? Then it takes no path.
+
+Tests that hold these rules:
+
+- `test/models/config_test.dart` (`PatchClashConfig.setupOnly`).
+- `test/models/core_test.dart` (`VpnOptions.effective`).
+- `test/providers/state_derived_test.dart` (the setup patch).
+- `test/manager/core_manager_test.dart` (update against apply).
+- `test/manager/vpn_manager_test.dart` (the restart notice).
+- `test/providers/setup_action_test.dart` (running options, suspension, `restartVpn`).

.agents/skills.md

@@ -0,0 +1,24 @@
+# Agent Skills
+
+Repo skills live under `.agents/skills/*/SKILL.md`, where Codex discovers them directly. Claude Code discovers them
+through the symlinks in `.claude/skills/`, one per skill, pointing back at the `.agents/skills/` directory. Both tools
+match a task against the skill `name` and `description`, then load the full instructions only when it matches.
+
+## Available Repo Skills
+
+- `localization`: hardcoded UI text scans, ARB updates, locale generation, and localization verification.
+- `ui-work`: Flutter UI, widgets, Material You styling, navigation surfaces, async feedback, and user-facing interactions.
+- `core-platform`: Core lifecycle/process ownership, Android services, Go event delivery, desktop IPC, platform managers,
+  VPN/TUN, and Windows Helper flow.
+- `pre-commit-quality-review`: lightweight triage before commits, with scoped structural review and user decisions on concrete regressions.
+
+## Authoring Notes
+
+- Add new repeatable workflows as `.agents/skills/<skill-name>/SKILL.md`, and add the matching
+  `.claude/skills/<skill-name>` symlink so Claude Code sees it too; remove both when retiring a skill.
+- Git stores the symlinks as links only where the checkout supports them. A Windows checkout needs
+  `core.symlinks=true` and Developer Mode, otherwise the links become plain files and Claude Code loads no repo
+  skill there; Codex is unaffected because it reads `.agents/skills/` directly.
+- Keep skill descriptions trigger-focused and start them with `Use when...`.
+- Keep long reference material in `.agents/*.md`; skills should link to it instead of duplicating it.
+- Put command permission rules in `.codex/rules/*.rules`, not in this file.

.agents/skills/core-platform/SKILL.md

@@ -0,0 +1,65 @@
+---
+name: core-platform
+description: Use when changing FlClash Core integration, lifecycle/process ownership, Go event delivery, Android services, desktop IPC, platform managers, build hooks, system proxy, tray, VPN/TUN, or the Windows or Linux Helper.
+---
+
+# Core And Platform
+
+## When To Use
+
+Use this for changes touching `lib/core/`, `lib/manager/`, `core/`, `services/helper/`, Android app/service modules,
+build hooks, system proxy, tray, VPN, TUN, or platform-specific desktop/mobile behavior.
+
+## Read First
+
+- `.agents/rules.md`: Core API Safety and Lifecycle Rules are binding. They carry the mihomo-fork patch budget, the
+  JSON envelope and `core/message.go` queue rules, gomobile callback rules, `BootGuard`, tray, and SSID rules, and every
+  lifecycle invariant (latest intent wins, desktop ownership through a `CoreProcessLease`, terminal `close()`,
+  optimistic Android commands arbitrated by `ServiceState`, callbacks are not user intent, `goAsync()` finishes once).
+- `.agents/setting-changes.md`: a setting the Core or the Android VPN reads is patched live, re-applied with the
+  profile, or left to a restart the user confirms; it says which, and what adding a setting to each path takes.
+- `.agents/architecture.md`: Core Integration, Lifecycle Ownership And Convergence, Core Protocol And Event Delivery,
+  Safe Mode, Build System, and Rust Helper Service describe the current mechanisms, including the Helper protocol,
+  the applied/coalesced/superseded outcomes, and the unconfirmed-exit lease.
+
+## Owners
+
+Every behavior here has one authoritative owner, and a change lands there:
+
+- Shared facade/protocol: `lib/core/controller.dart`, `lib/core/interface.dart`, and `lib/core/method.dart`.
+- Android Core connection: `lib/core/lib.dart`, `lib/plugins/service.dart`, and Android `ServicePlugin`.
+- Android start/stop intent: `ServiceState`; binding/process-time bookkeeping: `ServiceController`.
+- Desktop composition: `lib/core/service.dart`; lifecycle/process ownership: `lib/core/desktop/lifecycle.dart`.
+- Desktop IPC/RPC: `lib/core/desktop/transport.dart` and `lib/core/desktop/rpc_client.dart`.
+- Desktop launch ownership: `lib/core/desktop/launcher.dart`; Windows and Linux Helper HTTP contract:
+  `lib/core/desktop/helper_client.dart` and `services/helper/`.
+- Flutter orchestration: `lib/providers/actions/core.dart` and `system.dart`; application exit:
+  `SystemExitCoordinator`; UI/event observation: `lib/manager/`.
+
+An owner has more entry paths than the UI: provider calls, Quick Settings, notification actions, Always-on VPN, revoke
+callbacks, application exit, and crash/disconnect recovery all reach it. Always-on startup is explicit through
+`VPN_START_REQUESTED` and revoke through `VPN_REVOKED`; service creation or destruction is never read as intent.
+
+## Verification
+
+Focused tests live at the narrowest layer, and the matching commands are in `.agents/commands.md`:
+
+- Desktop lifecycle/transport/RPC: `test/core/desktop/` plus `test/core/service_test.dart`.
+- Cross-language envelopes/events: `test/core/protocol_contract_test.dart` and `CGO_ENABLED=0 go test .`.
+- Provider/exit convergence: `test/providers/action_test.dart` and `test/providers/system_action_test.dart`.
+- Android Kotlin: compile each touched Gradle module with JDK 17.
+- Helper: `cargo fmt --check` and `cargo test`; the `windows-service` feature only builds on Windows.
+
+State host gaps explicitly. Always-on VPN, VPN permission, system revoke, named-pipe peer identity, polkit and systemd
+on Linux, and Windows Service Control Manager behavior need their real platform even when portable tests pass.
+
+## Pitfalls
+
+- A `200` from Helper `/stop` means the Core is gone. When termination cannot be confirmed the Helper keeps the child
+  and answers `coreStopFailed`, and `/start` reports the same code instead of spawning a replacement. Keep that code
+  out of the Dart pre-spawn fallback set in `helper_client.dart`, or the direct launch races a Core the Helper still
+  owns.
+- The Helper owns executable integrity: Core SHA256 validation and the protocol stay identical across Flutter build
+  modes, so a debug build is not exempt.
+- `plugins/setup/` is a build harness, not a Dart API plugin, and its hooks can trigger Go or Rust compilation
+  indirectly through Flutter platform builds; a missing toolchain fails `flutter test`, not only `flutter build`.

.agents/skills/localization/SKILL.md

@@ -0,0 +1,49 @@
+---
+name: localization
+description: Use when changing FlClash UI text, scanning for hardcoded Chinese strings, updating ARB localization, or fixing generated locale output in this repository.
+---
+
+# Localization
+
+## When To Use
+
+Use this for localization work in this repository, especially hardcoded UI text in `lib/`, ARB updates, missing translations, or generated `lib/l10n/` output that does not match source ARB values.
+
+Do not use this for README translation sync or manual edits to generated localization Dart.
+
+## Workflow
+
+1. Scan user-facing Dart text before opening many files. `flutter_intl` reads `arb/` and writes `lib/l10n/`:
+
+   ```bash
+   rg -n "[\\p{Han}]" lib -g '!lib/l10n/intl/**' -g '!lib/**/generated/**'
+   ```
+
+2. Inspect the smallest relevant call sites and nearby ARB keys.
+3. Add or update every source ARB:
+   - `arb/intl_en.arb`
+   - `arb/intl_zh_CN.arb`
+   - `arb/intl_ja.arb`
+   - `arb/intl_ru.arb`
+   - `arb/intl_fr.arb`
+   - `arb/intl_es.arb`
+   - `arb/intl_ko.arb`
+4. Replace inline strings with existing project accessors:
+   - Widgets with `BuildContext`: `context.appLocalizations.key` from `lib/common/context.dart`.
+   - Controllers/providers/non-widget code: `currentAppLocalizations.key` from `lib/common/app_localizations.dart`.
+5. Regenerate:
+
+   ```bash
+   dart run intl_utils:generate
+   ```
+
+6. Run `flutter analyze --no-fatal-infos` and `flutter test test/l10n test/lint/dynamic_message_key_test.dart`. The
+   lint test checks that every locale carries the same keys and that no `Intl.message` builds a key at runtime; labels
+   for enum values go through the switches in `lib/common/l10n_labels.dart`, as the ARB section of `.agents/rules.md`
+   explains.
+7. Re-run the Han-text scan for targeted strings.
+
+## Pitfalls
+
+- If ja/ru still show English, fix ja/ru source ARB values and regenerate. Do not edit generated Dart.
+- Ignore `lib/l10n/intl/**` and `lib/**/generated/**` during text scans.

.agents/skills/pre-commit-quality-review/SKILL.md

@@ -0,0 +1,105 @@
+---
+name: pre-commit-quality-review
+description: Use when the user asks to commit, amend, or squash code, or requests a pre-commit structural quality review.
+---
+
+# Pre-commit Quality Review
+
+Check that iterative edits converged into a clear, cohesive, maintainable implementation before they become a commit,
+so later code review is not spent on basic structure. `AGENTS.md` and `.agents/rules.md` apply throughout. This skill
+grants no authority: commit, push, and history rewrites stay under the user's existing authorization, and silence is
+not consent.
+
+## Triage
+
+Most commits stop here. Decide from the change summary, the diff, and the local context it needs; never start with a
+repository-wide scan.
+
+- **Skip** formatting, mechanical renames, generated output, copy changes, and simple local fixes. They go through the
+  normal commit flow without extra confirmation. Say the review was skipped, never that it passed.
+- **Review** when a core implementation is replaced; when responsibilities, dependency direction, or public abstractions
+  change materially; when accumulated patches added branches, duplicate paths, or indirection; or when new code draws
+  responsibility boundaries. A small change can move a critical responsibility, so line count is not a trigger.
+- An explicit structural review request bypasses triage.
+
+The snapshot under review is the intended commit compared with its baseline:
+
+| Operation | Baseline |
+|---|---|
+| Regular commit | `HEAD` |
+| Amend | Parent of the commit being replaced |
+| Squash | Version preceding the agreed range |
+| Initial commit | Empty tree |
+
+Ask when the range or parent is materially ambiguous instead of assuming the whole branch. Read staged versions of
+partially staged files; an unstaged fix is not part of the pending commit. Preserve unrelated changes and partial
+staging.
+
+## Review the Final Structure
+
+Scope the review to the responsibility boundaries this change touched. Read the complete final implementation of the
+affected units and compare before and after, not only the last patch. Report issues this change introduced or
+worsened; untouched historical debt is not a pre-commit requirement. Follow a call or dependency path only as far as a
+concrete concern needs, and disclose missing essential context rather than claiming a complete pass.
+
+Focus on:
+
+- **Responsibilities and cohesion:** units mixing responsibilities that change independently; orchestration tangled
+  with implementation detail; responsibilities in layers that should not own them.
+- **Dependencies and abstractions:** reversed or circular dependencies, forwarding layers, abstractions that isolate
+  nothing; similar names or interfaces hiding different responsibilities.
+- **Complexity and readability:** nested conditions, repeated fallbacks, boolean parameter combinations, mutually
+  dependent helpers; names and decomposition that do not reduce reading effort.
+- **Duplication and consistency:** reimplemented existing capabilities, parallel implementations or duplicate state,
+  scattered ownership of error handling, cleanup, or state updates.
+- **Remnants:** obsolete branches, compatibility layers, unused parameters, commented-out code, comments the rewrite
+  invalidated; coupling that makes existing test boundaries hard to use.
+
+Not findings: length, a missing design pattern, naming taste, or anything without code evidence and a real
+maintenance cost. Do not add cross-layer coupling to remove a few similar lines, rewrite stable code for uniformity,
+or demand abstractions for speculative needs.
+
+Business logic, UI behavior, performance, security, platform compatibility, and full functional review are out of
+scope. Report an incidentally found serious defect separately through the normal defect workflow, without hiding it or
+widening this review.
+
+## Findings and the User's Decision
+
+A finding qualifies only when all three hold:
+
+- Before-and-after code and the necessary call relationships show this change introduced or worsened it.
+- The maintenance cost is concrete, such as updating one rule in two places or touching unrelated layers for one
+  responsibility. Clarity or elegance alone is not enough.
+- A minimal proposal fits existing constraints, with a benefit not offset by new coupling, indirection, or scope.
+
+With no qualifying finding, state the reviewed scope and conclusion in a sentence or two and continue under the
+existing commit authorization. Do not ask for confirmation because a review happened, and do not collect optional
+improvements into a suggestion list.
+
+With qualifying findings, finish the read-only review and independent checks first, merge findings that share a cause,
+and give for each: file, symbol, and location with how this change introduced it; the concrete maintenance cost; the
+smallest proposal with its scope and any behavioral impact. Then **pause before creating the commit and ask whether to
+optimize first; do not edit or commit until the user answers.** Attribute the pause to this skill by file path so the
+user recognizes their configured workflow, for example: "The structural issues above support consolidating the
+duplicate state-update paths. Should I make that change before committing?"
+
+Existing explicit authorization for these findings is enough to act without asking again. The user may accept all,
+some, or none. Keep accepted findings and tradeoffs in the task context only, and do not re-ask because files were
+restaged, a hash changed, or unrelated edits landed; reassess only when relevant code changes invalidate the tradeoff.
+
+## Resolve and Finish
+
+Once authorized, make the smallest adjustments that resolve the accepted findings while preserving behavior and task
+scope; explain separately if either must change. Verify only the accepted findings and the direct effects of the
+adjustments, without another search for improvements. Raise a new finding only with evidence that meets the threshold
+and exceeds the existing authorization.
+
+Before committing, recheck status and the actual staged diff so the pending snapshot matches what was reviewed, and
+review only the delta of later edits. Run the checks `AGENTS.md` requires for the change: `flutter pub get`,
+`flutter analyze --no-fatal-infos`, and the covering `flutter test` suites listed in `.agents/commands.md`. Reuse
+results that are still valid, rerun those a later edit invalidated, and never present results from an earlier snapshot
+as verification of the staged one. The `comment-density` and `commit-msg` hooks in `.agents/rules.md` still gate the
+commit.
+
+Report the reviewed scope, completed improvements or accepted tradeoffs, check results, and any verification limits.
+Claim the commit is done only after it exists.

.agents/skills/ui-work/SKILL.md

@@ -0,0 +1,144 @@
+---
+name: ui-work
+description: Use when changing FlClash Flutter UI, widgets, screens, Material You styling, icons or glyphs, shapes and corner radii, navigation surfaces, async feedback, or user-facing interactions.
+---
+
+# UI Work
+
+## When To Use
+
+Use this for user-facing Flutter UI changes in `lib/`, including widgets, screens, navigation surfaces, settings rows,
+dialogs, and interaction behavior.
+
+## Conventions
+
+- Reuse the patterns of nearby widgets, providers, notifiers, and helpers before adding an abstraction, and keep to the
+  look the rest of the app has: Material You from `material_ui` as the base, with Apple's interaction conventions
+  (continuous corners, sheets that snap between detents, a floating tab bar) built on Material widgets rather than
+  Cupertino ones. Do not introduce a visual system for one screen or rewrite a layout the request does not need.
+- `.agents/rules.md` is binding here: the lint set (`child:` last, `const`, final locals), the superellipse corner API,
+  and the widget-test facts under Testing Rules (`pumpAndSettle` never returns on `EditorView`, `dispose()` must not
+  await, auto-dispose providers need a container-level hold, platform decisions are passed in as parameters).
+- A component that reads no provider, model or app string goes in `lib/ui/`; one built for an app feature goes in
+  `lib/widgets/`. The UI Layer section of `.agents/architecture.md` says how a `lib/ui` component gets app state.
+- Settings screens are built from the `ConfigToggleItem` family in `lib/widgets/config_item.dart`; the Settings Rows
+  section of `.agents/architecture.md` says when a file-local helper or a named widget is warranted.
+- Every icon lives in `lib/ui/icons/`, never the Material `Icons` font: reuse or add a glyph in `AppGlyphs` and show it
+  with `GlyphIcon`, or with `AnimatedGlyph` where it fills on selection. Glyphs are outlined, except inside a filled
+  button, where they take `fill: 1`. The Icons section of `.agents/architecture.md` covers shape roles, the stroke, the
+  fill animation, and when to fill.
+- Text sizes and weights come from `AppTextStyle` in `lib/ui/typography.dart`, Apple's iOS Dynamic Type scale, never a
+  Material `TextTheme` slot, a bare `fontSize`, or a `fontWeight`; the Typography section of `.agents/rules.md` has the
+  rule.
+- Modals dim what they cover with the Material 3 scrim (`ColorScheme.modalScrim`, `scrim` at 32%) and never blur it.
+  Every modal brings its own scrim, including one opened from inside another, so do not make a barrier transparent to
+  keep scrims from stacking.
+- A sheet's size belongs to its route, never to its content or call site: a bottom sheet rests at
+  `SheetProps.detents`, a side sheet is as tall as the window and as wide as `ModalSideSheetRoute` makes it from
+  the window width (`lib/ui/side_sheet.dart`, pinned by `test/widgets/side_sheet_width_test.dart`), and a form sheet
+  is a card `FormSheetRoute` caps in width and height (`lib/ui/form_sheet.dart`). Do not wrap a sheet's content in a
+  fixed width or height to resize one sheet.
+- A form with more than one value opens with `showFormSheet` and lays its values out in `FormRow`s, never as labeled
+  fields in a `CommonDialog`; a prompt for one value stays an alert. Forms in `.agents/architecture.md` has the rule.
+- A modal scrolls only once the window and keyboard leave it no room, and then through one scroll view: `CommonDialog`
+  caps its body at nothing but the space it is given, and a multi-line field in a dialog or sheet grows with its text
+  (`maxLines: null`) rather than scrolling inside a line count. With the keyboard up, a bottom sheet keeps what it
+  shows above the keyboard, rising past its tallest detent as far as a peek below the top (`_top` in
+  `lib/ui/snap_sheet.dart`).
+- The keyboard animates `MediaQuery.viewInsets` every frame. Read MediaQuery by aspect (`paddingOf`, `viewInsetsOf`)
+  rather than `MediaQuery.of`, and wrap the page of a new route type in `KeyboardInsetHold`; Keyboard Insets in
+  `.agents/architecture.md` has the reasons.
+- A page loads what it shows as it mounts, never once its route has settled; what waits out a transition is work
+  that repeats, such as a live feed's refreshes (`RouteMotionHoldMixin`), and the rows past the viewport
+  (`arrivalScrollCacheExtent`). Page Arrival in `.agents/architecture.md` has the rule.
+- A page that waits on its data shows nothing until all of it is ready (`NullStatusSwitcher.isLoading`), and a load
+  that can run long adds its illustration as `loadingStatus`, never a skeleton screen; Page Arrival in
+  `.agents/architecture.md` has the rule.
+- App bar buttons reach `CommonScaffold` as data (`primaryAction`, `iconActions`, `menuItems`) so it can fold them into
+  its overflow menu; App Bar Actions in `.agents/architecture.md` has the rule.
+- A row's secondary actions open from a context menu, never a trailing more button; a list whose rows have one
+  reorders in a sort mode, any other by a long press on the row. Row Actions And Sort Mode in `.agents/architecture.md`
+  has the rule.
+- Quick edit belongs only on a page that edits a whole list or section, or one isolated item; never on one that edits a
+  part of something other settings also write. Quick Edit in `.agents/architecture.md` has the rule.
+- A page or sheet opens on the navigator of the context it comes from, never on the root navigator unless Where A
+  Route Opens in `.agents/architecture.md` allows it.
+- User-facing text goes through ARB; use `localization` when text changes are non-trivial.
+- An asynchronous control keeps four things apart: authoritative provider/domain state; display-only state such as a
+  minimum progress duration; tap policy while work or a display hold is active; and failure/disposal cleanup, in
+  `finally` for animations and timers. `CoreStatusButton` and the proxies delay test action are the reference implementations,
+  described under User-Facing Core And Delay Feedback in `.agents/architecture.md`.
+
+## Corner Radii
+
+All corner radii come from `lib/ui/shape.dart`: a token, a derived value, or a named off-scale value passed to its
+builders. Never write a bare radius literal at a call site.
+
+The scale is picked by the component's **shortest side**. A radius that reads as a soft card at 64 dp tall
+reads as a pill at 24 and as a square at 400, so one radius everywhere is the wrong kind of consistency.
+
+| Token | Value | Shortest side | Use |
+| --- | --- | --- | --- |
+| `none` | 0 | - | square edges, and the flat side of a grouped run |
+| `xs` | 4 | inset blocks | tiles clipped inside an already rounded surface |
+| `sm` | 8 | up to 48 | chips, thumbs, swatches, small square tiles |
+| `md` | 16 | up to 64 | interactive chrome: inputs, menus, buttons, popups |
+| `lg` | 20 | 64 to 180 | mid-size cards: dashboard tiles, proxy node cards |
+| `xl` | 24 | full-bleed | anything spanning the whole width: list rows, grouped runs, group headers |
+| `xxl` | 28 | over 200 | sheets, full-screen containers |
+| `full` | 1000 | - | pills and circles: buttons, tracks, indicators, progress, avatars |
+
+- `AppCorner` holds the scale as `double`; `AppRadius` mirrors it as `BorderRadius` with `all`, `top`, and `vertical`
+  builders; `AppShape` mirrors it as `RoundedSuperellipseBorder`, `full` included, plus `circle`, `input`, and the
+  `all`/`top`/`vertical`/`of` builders. Use `AppShape.full` for pills, never `StadiumBorder`; the Corner Radius
+  section of `.agents/rules.md` explains why and lists the superellipse API per layer.
+- `AppCorner.fit(shortestSide)` snaps to the largest token at or under one third of the shortest side. Use it whenever
+  the size comes from a `LayoutBuilder` or scales with text.
+- `ThemeData.withAppShapes` in `lib/ui/shape.dart` already applies the scale to card, dialog, bottom sheet, snack
+  bar, chip, menu, input, FAB, navigation indicator, progress, and the filled, text, outlined, elevated, and icon
+  button themes. Do not restate those shapes at call sites, and
+  leave `InputDecoration.border` unset so inputs inherit `AppShape.input`.
+- Colors of surfaces follow `.agents/surfaces.md`: fills by `SurfaceLevel`, no structural borders, and
+  `primaryContainer` only on a selected item.
+
+`xl` and `lg` exist because one token cannot serve both size classes. A full-bleed surface is wide and short, so its
+corner must be larger than its height alone suggests or it stops reading as a card; everything full-bleed shares `xl`
+(`CommonSelectedListItem`, the profiles card, the outer corners of a grouped run in `DecorationListItem`, the proxy
+group card in `lib/views/proxies/list.dart`) and does not use `fit()`. This is the one deliberate overshoot of the
+one-third rule; the value stays under half a standard row so nothing clamps and every full-bleed surface renders the
+same radius. `lg` is for mid-size cards that are not full-bleed: a proxy node card in the tab view at
+`ProxyCardType.compact` is only about 64 tall, which caps its radius at 21, so `xl` would break on a setting the user
+can change at any time while `lg` clears both heights and the smallest dashboard tile.
+
+Outlined inputs use `AppInputBorder`, not `ShapedInputBorder` from `package:material_ui`. The package border subtracts
+the floating label's notch as a flat band along the top edge, which takes the corner curve with it at any radius from 8
+up. `AppInputBorder` clips the notch region and paints the full superellipse through it, as Flutter's own
+`OutlineInputBorder` does by shortening the arc. It needs no `contentPadding` compensation.
+
+Nested radii are derived, never tokens: concentric corners need `outer = inner + inset`, so name the inset and compute
+the outer value, as `_cardRadius` in `lib/ui/popup.dart` does. Adding a token for one of these is how a scale grows without
+bound. A card that also stands on its own elsewhere keeps its token when nested: the proxy node cards inside a proxies
+list group stay `lg` like those in the tab view, since deriving them from the group card's `xl` left them at 14, smaller
+than every other card in the app.
+
+A component the scale does not fit keeps its own value instead of growing the scale: name it once in the file and pass
+it to the `all`/`top`/`vertical` builders, as `_itemShape` in `lib/ui/sidebar.dart` does with 10, between the
+chip-sized `sm` and the near-pill `md` on a 40 tall row, and `_dialogCorner` in `lib/ui/shape.dart` does with 34, the
+corner of an iOS alert. Reach for this only once the table and `fit()` are ruled out.
+
+## Verification
+
+- A behavior change gets a focused widget test covering rendering states, taps, scrolling, and empty/error states,
+  including the exception path of any async action. Run `flutter analyze` and `flutter test test/widgets/` plus the
+  tests of the touched view.
+- The scans in `test/lint/` fail on the common UI mistakes and run as part of `flutter test`: an `IconButton` whose
+  icon is an icon needs a `tooltip`; a field that constructs its own controller, notifier, or focus node is released in
+  the same file; a public declaration nothing references is dead. `.agents/rules.md` explains each rule and its
+  allowlist.
+
+## Pitfalls
+
+- Do not mutate provider/domain state merely to smooth a transition. Keep presentation holds local and let real errors
+  bypass them immediately.
+- Do not leave loading animations active when callbacks throw.
+- Do not manually edit generated localization or provider files.

.agents/surfaces.md

@@ -0,0 +1,187 @@
+# Surfaces
+
+FlClash draws structure with fills and keeps color for state. A surface stands out from what it sits on by a step in
+lightness, never by a border. Color appears where something is selected, on, failing, or the one action a screen is
+for. The dashboard set this direction; every other screen follows it, and Material components keep their behavior
+but give up their tonal container fills.
+
+## Levels
+
+`SurfaceLevel` in `lib/ui/surface.dart` names four depths. Each surface takes the level one deeper than the one
+it sits on, which `SurfaceScope` passes down the tree.
+
+| Level   | Light                     | Dark                      | Holds                                                   |
+|---------|---------------------------|---------------------------|---------------------------------------------------------|
+| `page`  | `surfaceContainer`        | `surface`                 | scaffold body, sheets                                   |
+| `card`  | `surfaceBright`           | `surfaceContainer`        | cards, grouped runs of rows, light-mode floats          |
+| `block` | `surfaceContainer`        | `surfaceContainerHigh`    | unselected segments, tiles and wells in a card          |
+| `inset` | `surfaceContainerHighest` | `surfaceContainerHighest` | small marks inside a block: glyph wells, badges, tracks |
+
+Light mode alternates gray and paper: a near-white card on a gray page, a gray block in the card. The card is tone 98,
+not pure white, and the page tone 94: pure white beside a tinted gray made the white glare and the gray look soiled. Dark mode only
+lightens, because a darker step inside a lighter surface reads as a hole rather than a layer. `inset` is the floor;
+nothing nests below it, so a design that needs a fifth level needs fewer containers instead.
+
+- A widget never picks its level at the call site. `CommonCard` and the other shared surfaces read
+  `context.raisedSurfaceLevel` and wrap their child in `SurfaceScope`, so the same row is white on a page and gray
+  inside a card. A branch on `isInBottomSheet` or on where a widget is placed to choose its fill is the bug this
+  replaces.
+- Sheets are `page` level, like a page, so a section looks the same in a sheet and in a page. In dark mode a sheet
+  presents a level up, as iOS presents a sheet on its elevated backgrounds: `ColorScheme.elevated` lifts every
+  surface role by the step from `page` to `card`, so the sheet's page takes the tone of the cards it covers and every
+  level inside it follows. Under pure black the sheet takes the plain dark scheme instead, which is the same step up
+  and keeps the seed's tint that a lift from black would lose. `ElevatedColorScheme` carries the result and the sheet
+  routes apply it through `ElevatedSurfaceTheme`; a sheet opened from a sheet keeps the same lift. A scrim barely
+  darkens a dark page, so a dark sheet at the page's own tone read as more of the page rather than a layer over it,
+  a covered sheet's peek vanished, and on black the edge and corners went with it. Light mode keeps its levels,
+  because the scrim already sets a light sheet apart.
+- What floats over content, dialogs, menus, popups, the mobile dock, toasts, takes `SurfaceLevel.floatingOf`: `card`
+  in light, `block` in dark. A shadow does not show on a dark page, so a float has to come out lighter than the cards
+  it covers, and its content scopes to that level so a block inside still steps away from it.
+- Shadows mark what floats, plus the dashboard cards. Cards in a scrolling list have none; a grid of proxies with a
+  blurred shadow each costs raster time for no extra layering. A render object that paints a shadow itself draws it
+  with `drawRSuperellipse`, as `ShapeDecoration` does: Impeller blurs a superellipse in one analytic pass, but a path
+  through an offscreen Gaussian blur on every frame, which made the shadows the largest raster cost of an opening menu.
+
+## The Seeded Scheme
+
+`seededColorScheme` in `lib/ui/color.dart` builds every app scheme: Material's scheme for the seed and the
+`ColorStyle` picked in the theme settings, with three groups of roles replaced. Everything else stays Material,
+including `toPureBlack` applied after it.
+
+The four styles each change something a reader sees at once. Material's nine variants mostly moved secondary and
+tertiary, which the app barely shows, so most of them looked alike once surfaces stayed gray.
+
+| Style        | Material variant | Primary           | Surfaces                        |
+|--------------|------------------|-------------------|---------------------------------|
+| `vivid`      | content          | the seed          | near gray                       |
+| `tinted`     | content          | the seed          | the seed's hue, up to chroma 10 |
+| `soft`       | tonal spot       | Material's, muted | near gray                       |
+| `monochrome` | monochrome       | black or white    | gray                            |
+
+
+- **Surfaces stay near gray.** Each `surface*` role keeps Material's tone but its chroma is capped at 3, the light
+  `surface` and `surfaceBright` at 1.5, and `outlineVariant` at 4. Material tints neutrals by the seed (content
+  divides the seed's chroma by 8), so a yellow, green, or rose seed tinted the whole page. `tinted` is that wash
+  chosen on purpose and made even: every surface takes the seed's hue at a sixth of its chroma, capped at 10, so a
+  gray seed stays gray and any vivid one tints about as much.
+- **`primaryContainer` comes from the primary palette.** It is primary's hue at tone 90 in light and 30 in dark,
+  with `onPrimaryContainer` at 30 and 90, and the pair's chroma is capped at 48. Content and fidelity otherwise put it
+  at the seed's own tone: a yellow seed filled it with pure yellow, a red seed with something that read as an error,
+  and dark mode with a light block under light text. The cap matters for light, chromatic hues: yellow at tone 90 is
+  still close to full strength.
+- **`vivid` and `tinted` keep the seed as `primary`**, as an Apple accent color does: the color picked in the theme
+  settings is the color of every check, switch, and filled button. Light holds the seed's tone between 35 and 60, so
+  white text on it keeps about 3:1 and a near-black seed still reads as a color; dark lifts it 3 tones, as iOS lifts
+  its system colors, within 50 to 75, and puts dark text on it above 60. Material sets primary at tone 40 and 80 for
+  any seed, which turned iOS blue into navy in light and a pastel in dark. `soft` and `monochrome` keep Material's
+  primary, since moving away from the seed is what they are for.
+
+## State
+
+Color marks the one item that differs, never the structure around it.
+
+- **Selected**, one of several rows, cards, or tiles: the item keeps its level's fill and a primary mark says which,
+  as iOS checks the option picked from a list. A row in a grouped run takes `SelectionCheck` at its edge; a card that
+  stands on its own, a profile or a proxy, and a tile take the filled `SelectionBadge`, which holds its own beside a
+  40 dp icon well where the bare check read as small and thin (`lib/ui/selection_mark.dart`). `CommonCard.isSelected` only reports the state to
+  accessibility. Fills were tried and rejected: a wash of primary landed on a gray that did not read as a choice, and
+  `primaryContainer` read as a warning under rose seeds in light and as a heavy slab in dark, muddied the translucent
+  marks on it, and cut a grouped run in two.
+- **Multi-select** in edit mode: the circle checkbox is the mark; the row stays at its level.
+- **Proxy groups** have two states in URLTest and Fallback: the check badge marks the proxy traffic goes through, in
+  every group type, and a pin badge (`SelectionBadge.preferred`) marks the preferred proxy (mihomo's `fixed`): filled
+  like the check while the group uses it, tonal while the group has fallen back to another proxy, which carries the
+  check.
+- **Chosen segment** in a connected button group, a mode switch, or a run of compact choice chips
+  (`CommonCard.fillsSelection`): solid `primary` with `onPrimary`, as the dashboard outbound mode does. Only one
+  segment per group.
+- **Error** on a row or card: `errorContainer` with `onErrorContainer`, no border.
+- **Status** values (delay, availability, success, warning): the color goes on text, a glyph, or a small chip, never
+  on a whole card. `success` and `warning` come from fixed green and orange palettes that ignore the seed, like
+  Material's `error`; harmonizing pulled orange toward red under rose seeds until warning and error matched. Text takes
+  tone 40 in light and 80 in dark, a chip takes `successContainer`/`warningContainer` (90/30) with the `on` role
+  (30/90). A delay under 600 ms is success, above it warning, a failure error: `ColorScheme.delayColor`.
+- **Destructive** action in an alert: `ColorScheme.destructive`, iOS 27's systemRed in both modes, not `error`. A
+  menu's `danger` item still takes `error`.
+- **Data series** on one chart: the first is primary, the second primary at 45% over the card
+  (`DashboardColors.series2`), so they differ by lightness under any seed. Tertiary is not a series color.
+- **Text**: titles and values `onSurface`, labels and secondary lines `onSurfaceVariant`. `outline` is not a text
+  color, and a value is never tinted primary.
+- **Marks** that only identify, a country badge, a group or service icon, a source avatar, sit on a neutral well with
+  `onSurfaceVariant`.
+- `primaryContainer`, `secondaryContainer`, and `tertiaryContainer` are neither surface nor selection fills. Keep
+  them out of cards, rows, marks, and navigation indicators.
+
+## Borders That Stay
+
+- **Focus**: a 2 dp primary stroke while a surface has keyboard or remote focus. TV navigation depends on it, and a
+  fill change alone is too faint to follow from a couch. A card, a grouped row above all, rings only focus a key moved
+  there (`FocusMovedByKey`), or any focus while a remote drives the app: a tap or a click puts focus where the reader
+  is already looking, a field's caret already marks it, and the ring then read as a selection box around the row.
+- **Inputs**: a form's field is a bare `FormRowTextField` at the end of a grouped `FormRow` whose title labels it, as
+  iOS and macOS set one, with no stroke or fill of its own. A field among filled controls takes their fill, one level
+  above its surface, through `FilledInputTheme`. An alert's fields, because they sit over its pill buttons, as
+  UIAlertController sets them: as wide as the buttons, in their fill, with their text in line with the title and the
+  label as the placeholder (`CommonDialog.hasFields`); a field under a filled block of text in an alert takes the
+  block's width and corner instead. The custom color's hex field, because its card holds only fills, the color
+  previews, where an outline was the one stroked thing. Search fields are filled pills. A sheet's docked search,
+  because the list scrolls under it: it floats like the dock, with the floating fill and the dock's shadow, or the
+  dock's glass. The editor's find bar, because its fields sit in a row of filled pill buttons: they take the buttons'
+  fill, one level above the bar. All of these stroke only while focused. Any other field, one standing alone on a page,
+  is outlined, with the floating label notched into the stroke: `ThemeData.withAppShapes` gives every input
+  `AppShape.input`, so call sites leave `border` unset. A lone field is never filled: here a fill means structure, so
+  one read as one more card or row, and in light mode the hover overlay brought it down to the page's own tone. No
+  field counts its characters, as none does on iOS or macOS; a length limit holds through its formatter. Material
+  strokes a filled field's whole outline in `onSurfaceVariant`, which ringed the pill brighter than anything else in a
+  dark sheet.
+- **Window chrome**: the desktop sidebar's inner edge and the title bar's bottom edge draw a divider where they meet
+  the content. The chrome fill alone left the edge to a four-tone step, which read as a smudge rather than a boundary.
+
+Nothing else draws an outline. Rows in a grouped run are separated by the hairline from `lib/ui/list_row_separator.dart`, which divides
+one surface and does not outline it. Record lists, requests, connections, logs, and DNS queries, are not grouped: they
+run to thousands of tall rows, and one card that long reads as a slab rather than a group. A stacked row of three or
+four lines is already its own block, so each is a card of its own, `RecordListItem`: the raised fill at `xl`, 16 dp
+from the edges and 8 dp from the next, as the profile cards sit. Every card takes the same fill, so the warning and
+error tints on a label still stand out, where a fill on every other row competed with them; rows on the page split by
+a full-width divider were the one structural line left on screens otherwise drawn with fills. Laid out as a table,
+where a row is one line read across many columns, they drop the gap and give every other row the raised fill, inset
+and rounded like the column header, so the eye keeps its row; the dashboard's table does the same.
+
+Every divider takes its color from `ThemeData.withAppSurfaces`: `onSurface` at 14%, never `outlineVariant`. A
+translucent line keeps the same contrast on the page, a card, or the chrome, in both modes; `outlineVariant` stood out
+twice as much on the dark page as on the light one and carried the seed's tint.
+
+## Navigation
+
+- The desktop sidebar and title bar are window chrome, `ColorScheme.chromeSurface`: `surfaceContainerHighest` in
+  light and `surfaceContainerLow` in dark, four tones from the page either way, with a divider along the edge that
+  meets the content. At `page` level the sidebar merged with the content. In dark the chrome stays below `card`, so
+  cards still stand out from it. The pane the sidebar opens over the content takes the same fill and edge, plus a
+  shadow.
+  The selected destination keeps its neutral fill and primary bar, which already marks it with color.
+- The mobile dock and the docked navigation bar are floats; their indicator is a neutral platter one level above
+  them, and the selected destination's content takes primary, as iOS's tab bar marks its selection.
+- With Liquid Glass on (Theme settings), the dock, the buttons of a page's bar, a sheet's docked search, popup
+  menus, and alerts are glass from `lib/ui/liquid_glass.dart` instead of a fill, and the dock's platter takes the
+  secondary hue and chroma at tone 90, or at tone 4 in dark, which sinks it below the bar as iOS 27 does.
+- The proxies page's group tabs are compact choice chips, the current group in the chosen segment's solid `primary`.
+  Once they overflow, a tonal button at their end opens every group as a popup menu, the current one checked and
+  scrolled into view. A profile can carry dozens of groups, so the menu stops at seven rows and half of the next.
+
+## Where It Lives
+
+- `lib/ui/surface.dart`: `SurfaceLevel`, `SurfaceScope`, `context.surfaceLevel`, `context.raisedSurfaceLevel`,
+  `ColorScheme.chromeSurface`, and `ThemeData.withAppSurfaces`, applied next to `withAppShapes` wherever the app
+  builds its theme.
+- `lib/ui/color.dart`: `seededColorScheme`, the status palettes, and `delayColor`.
+- `lib/views/dashboard/style.dart`: `DashboardColors` maps `page`, `card`, `tone`, and `tone2` onto the levels and
+  adds the dashboard's switch, series, and status colors.
+
+## Checking A Change
+
+Render the touched screens in light and dark, on a phone width and a desktop width, before and after. A throwaway
+widget test does it: pump `HomePage` or the view inside a `RepaintBoundary`, load Roboto with `FontLoader` so text
+gets real glyphs, and write `RenderRepaintBoundary.toImage` to a PNG outside the repository. Look for a surface that
+matches the one it sits on, which means it skipped `SurfaceScope`, and for a tonal container fill that survived on a
+card or row.

.agents/worktrees.md

@@ -0,0 +1,5 @@
+# Worktrees
+
+Claude Code, Codex, and Gemini each create git worktrees. `tool/worktrees.sh list` shows every worktree with its
+owning tool and whether it holds uncommitted work; `tool/worktrees.sh prune` removes the clean ones and keeps
+dirty ones unless `--force` is passed. `.claude/worktrees/` is ignored by git; `.claude/settings.json` is tracked.

.claude/settings.json

@@ -0,0 +1,17 @@
+{
+  "hooks": {
+    "PostToolUse": [
+      {
+        "matcher": "Edit|Write|MultiEdit|NotebookEdit",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "bash \"${CLAUDE_PROJECT_DIR:-.}/tool/hooks/comment_density.sh\"",
+            "timeout": 15,
+            "statusMessage": "Checking comment density"
+          }
+        ]
+      }
+    ]
+  }
+}

.claude/skills/core-platform

@@ -0,0 +1 @@
+../../.agents/skills/core-platform

.claude/skills/localization

@@ -0,0 +1 @@
+../../.agents/skills/localization

.claude/skills/pre-commit-quality-review

@@ -0,0 +1 @@
+../../.agents/skills/pre-commit-quality-review

.claude/skills/ui-work

@@ -0,0 +1 @@
+../../.agents/skills/ui-work

.codegraph/.gitignore

@@ -0,0 +1,5 @@
+# CodeGraph data files — local to each machine, not for committing.
+# Ignore everything in .codegraph/ except this file itself, so transient
+# files (the database, daemon.pid, sockets, logs) never show up in git.
+*
+!.gitignore

.codex/config.toml

@@ -0,0 +1,8 @@
+[[hooks.PostToolUse]]
+matcher = "apply_patch|Bash"
+
+[[hooks.PostToolUse.hooks]]
+type = "command"
+command = "bash tool/hooks/comment_density.sh"
+timeout = 15
+statusMessage = "Checking comment density"

.gemini/settings.json

@@ -0,0 +1,12 @@
+{
+  "mcpServers": {
+    "codegraph": {
+      "type": "stdio",
+      "command": "codegraph",
+      "args": [
+        "serve",
+        "--mcp"
+      ]
+    }
+  }
+}

.gitattributes

@@ -0,0 +1,2 @@
+# freezed emits lines of trailing spaces, and generated code is never edited by hand.
+lib/**/generated/** -whitespace

.github/homebrew_cask_template.rb

@@ -0,0 +1,41 @@
+cask "flclash" do
+  version "VERSION"
+
+  on_macos do
+    arch arm: "arm64", intel: "amd64"
+
+    sha256 arm:   "ARM_SHA256",
+           intel: "AMD_SHA256"
+
+    url "https://github.com/chen08209/FlClash/releases/download/v#{version}/FlClash-#{version}-macos-#{arch}.dmg"
+  end
+
+  name "FlClash"
+  desc "Multi-platform proxy client based on ClashMeta"
+  homepage "https://github.com/chen08209/FlClash"
+
+  livecheck do
+    url :url
+    strategy :github_latest
+  end
+
+  depends_on :macos
+
+  app "FlClash.app"
+
+  postflight_steps do
+    run "/usr/bin/xattr",
+        args:           ["-rd", "com.apple.quarantine", "{{appdir}}/FlClash.app"],
+        writable_paths: ["FlClash.app"],
+        writable_base:  :appdir
+  end
+
+  uninstall quit: "com.follow.clash"
+
+  zap trash: [
+    "~/Library/Application Support/com.follow.clash",
+    "~/Library/Caches/com.follow.clash",
+    "~/Library/Preferences/com.follow.clash.plist",
+    "~/Library/Saved Application State/com.follow.clash.savedState",
+  ]
+end

.github/release_template.md

@@ -42,7 +42,7 @@
             <td>
                 <a href="https://github.com/chen08209/FlClash/releases/download/vVERSION/FlClash-VERSION-linux-amd64.AppImage"><img src="https://img.shields.io/badge/AppImage-x64-f84e29.svg?logo=linux"> </a><br>
                 <a href="https://github.com/chen08209/FlClash/releases/download/vVERSION/FlClash-VERSION-linux-amd64.deb"><img src="https://img.shields.io/badge/DebPackage-x64-FF9966.svg?logo=debian"> </a><br>
-                <a href="https://github.com/chen08209/FlClash/releases/download/vVERSION/FlClash-VERSION-linux-amd64.deb"><img src="https://img.shields.io/badge/RpmPackage-x64-F1B42F.svg?logo=redhat"> </a>
+                <a href="https://github.com/chen08209/FlClash/releases/download/vVERSION/FlClash-VERSION-linux-amd64.rpm"><img src="https://img.shields.io/badge/RpmPackage-x64-F1B42F.svg?logo=redhat"> </a>
             </td>
         </tr>
     </tbody>

.github/workflows/build.yaml

@@ -2,13 +2,329 @@ name: build
 
 on:
   push:
+    branches:
+      - '**'
     tags:
       - 'v*'
+  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ !startsWith(github.ref, 'refs/tags/v') }}
+
 env:
   IS_STABLE: ${{ !contains(github.ref, '-') }}
+  # See CI Caches in .agents/commands.md.
+  BRANCH_CACHE: ${{ !startsWith(github.ref, 'refs/tags/') }}
+  FLUTTER_VERSION: '3.47.6'
+  GO_VERSION: '1.27.1'
+  NDK_VERSION: r28c
 
 jobs:
+  dart:
+    name: Dart
+    # A private copy pays for its Actions minutes, so it runs the checks only when
+    # started by hand.
+    if: &checks github.event_name == 'workflow_dispatch' || !github.event.repository.private
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          submodules: true
+
+      - name: Test git hooks
+        run: bash tool/hooks/test.sh
+
+      - name: Setup Rust cache
+        uses: Swatinem/rust-cache@v2
+        with:
+          workspaces: plugins/rust_api/rust
+          cache-directories: .dart_tool/hooks_runner
+          save-if: ${{ env.BRANCH_CACHE }}
+
+      - name: Setup Flutter
+        uses: subosito/flutter-action@v2
+        with:
+          channel: stable
+          flutter-version: ${{ env.FLUTTER_VERSION }}
+          cache: ${{ env.BRANCH_CACHE }}
+
+      - name: Install dependencies
+        run: flutter pub get
+
+      - name: Check format
+        run: dart format --output=none --set-exit-if-changed lib test tool plugins setup.dart
+
+      - name: Analyze
+        run: flutter analyze --no-fatal-infos
+
+      - name: Skip the Go core build hook
+        run: |
+          yq -i '.hooks.user_defines.setup.build_assets = false' pubspec.yaml
+
+      - name: Verify changelog
+        if: github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/')
+        run: dart run tool/changelog.dart verify
+
+      - name: Run tests
+        run: dart run tool/test.dart -- --reporter expanded --coverage
+
+      - name: Check coverage
+        run: dart run tool/check_coverage.dart coverage/lcov.info 75
+
+  plugins:
+    name: Plugins
+    if: *checks
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Flutter
+        uses: subosito/flutter-action@v2
+        with:
+          channel: stable
+          flutter-version: ${{ env.FLUTTER_VERSION }}
+          cache: ${{ env.BRANCH_CACHE }}
+
+      - name: Validate local Flutter packages
+        run: bash tool/check_plugins.sh
+
+      - name: Validate setup hooks package
+        working-directory: plugins/setup/setup_hooks
+        run: |
+          dart pub get
+          dart analyze
+          dart test
+
+  desktop:
+    name: Desktop ${{ matrix.platform }}
+    if: (github.event_name == 'workflow_dispatch' || !github.event.repository.private) && !(github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v'))
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - platform: linux
+            os: ubuntu-latest
+          - platform: windows
+            os: windows-2022
+          - platform: macos
+            os: macos-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ env.GO_VERSION }}
+          cache-dependency-path: |
+            core/go.sum
+            plugins/setup/setup_hooks/lib/src/go_builder.dart
+
+      - name: Setup Rust cache
+        uses: Swatinem/rust-cache@v2
+        with:
+          key: desktop-${{ matrix.platform }}
+          workspaces: |
+            services/helper
+            plugins/rust_api/rust
+          cache-directories: .dart_tool/hooks_runner
+
+      - name: Setup Flutter
+        uses: subosito/flutter-action@v2
+        with:
+          channel: stable
+          flutter-version: ${{ env.FLUTTER_VERSION }}
+          cache: true
+
+      - name: Install Linux build dependencies
+        if: matrix.platform == 'linux'
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y ninja-build libgtk-3-dev libayatana-appindicator3-dev libsecret-1-dev
+
+      - name: Setup Xcode
+        if: matrix.platform == 'macos'
+        run: |
+          sudo xcode-select -s /Applications/Xcode_26.3.app || sudo xcode-select -s /Applications/Xcode_26.2.app
+          xcodebuild -version
+
+      - name: Enable git long paths (Windows)
+        if: matrix.platform == 'windows'
+        run: git config --global core.longpaths true
+
+      - name: Install dependencies
+        run: flutter pub get
+
+      # Compiles the desktop runners and the native plugin code that only the
+      # tagged release matrix built before; the bundle itself is discarded.
+      - name: Build debug bundle
+        run: flutter build ${{ matrix.platform }} --debug
+
+  go:
+    name: Go core
+    if: *checks
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ env.GO_VERSION }}
+          cache: ${{ env.BRANCH_CACHE }}
+          cache-dependency-path: core/go.sum
+
+      - name: Validate Go core wrapper
+        working-directory: core
+        env:
+          CGO_ENABLED: 0
+        run: |
+          if ! compgen -G '*_test.go' > /dev/null; then
+            echo 'No Go tests found in core/; the test step would pass vacuously.' >&2
+            exit 1
+          fi
+          test -z "$(gofmt -l ./*.go ./cmd ./mobile ./platform ./tun)" || {
+            gofmt -l ./*.go ./cmd ./mobile ./platform ./tun >&2
+            exit 1
+          }
+          go test -count=1 .
+          go vet . ./cmd/...
+          GOOS=linux go vet ./platform
+
+      - name: Validate the Android core library
+        working-directory: core
+        env:
+          CGO_ENABLED: 0
+        run: |
+          tags="$(sed -n 's/^tags: *//p' ../build_config.yaml)"
+          test -n "$tags" || { echo 'Could not read tags from build_config.yaml' >&2; exit 1; }
+          GOOS=android GOARCH=arm64 go vet "-tags=$tags" . ./mobile ./tun ./platform
+
+  android:
+    name: Android unit tests
+    if: *checks
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ env.GO_VERSION }}
+          cache: ${{ env.BRANCH_CACHE }}
+          cache-dependency-path: |
+            core/go.sum
+            android/core/build.gradle.kts
+
+      - name: Setup Flutter
+        uses: subosito/flutter-action@v2
+        with:
+          channel: stable
+          flutter-version: ${{ env.FLUTTER_VERSION }}
+          cache: ${{ env.BRANCH_CACHE }}
+
+      - name: Install dependencies
+        run: flutter pub get
+
+      - name: Setup NDK
+        uses: nttld/setup-ndk@v1
+        id: ndk
+        with:
+          ndk-version: ${{ env.NDK_VERSION }}
+          link-to-sdk: true
+
+      - name: Setup Java
+        uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: '17'
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v6
+        with:
+          cache-read-only: ${{ github.ref != 'refs/heads/main' && github.ref != 'refs/heads/dev' }}
+
+      - name: Run Android unit tests
+        working-directory: android
+        env:
+          ANDROID_NDK_HOME: ${{ steps.ndk.outputs.ndk-path }}
+        run: |
+          {
+            echo "flutter.sdk=$FLUTTER_ROOT"
+            echo "sdk.dir=$ANDROID_HOME"
+          } > local.properties
+          wrapper="$FLUTTER_ROOT/bin/cache/artifacts/gradle_wrapper"
+          test -d "$wrapper" || flutter precache
+          cp -R "$wrapper/." .
+          chmod +x gradlew
+          # No JVM unit test loads the Core or the Flutter build, but `:core` compiles against
+          # the gomobile AAR, so one ABI of it is built.
+          ./gradlew :common:testDebugUnitTest :service:testDebugUnitTest :app:testDebugUnitTest \
+            -Ptarget-platform=android-arm64 \
+            -x :app:compileFlutterBuildDebug -x :app:copyFlutterAssetsDebug
+
+  rust:
+    name: Rust
+    if: *checks
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Rust cache
+        uses: Swatinem/rust-cache@v2
+        with:
+          workspaces: |
+            services/helper
+            plugins/rust_api/rust
+          save-if: ${{ env.BRANCH_CACHE }}
+
+      - name: Check format
+        run: |
+          cargo fmt --manifest-path services/helper/Cargo.toml -- --check
+          cargo fmt --manifest-path plugins/rust_api/rust/Cargo.toml -- --check
+
+      - name: Run tests
+        run: |
+          cargo test --manifest-path services/helper/Cargo.toml
+          cargo test --manifest-path plugins/rust_api/rust/Cargo.toml
+
+  windows-helper-test:
+    name: Windows helper test
+    if: *checks
+    runs-on: windows-2022
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Rust cache
+        uses: Swatinem/rust-cache@v2
+        with:
+          workspaces: services/helper
+          save-if: ${{ env.BRANCH_CACHE }}
+
+      - name: Check format
+        run: cargo fmt --manifest-path services/helper/Cargo.toml -- --check
+
+      - name: Run Windows service tests
+        run: cargo test --manifest-path services/helper/Cargo.toml --features windows-service
+
   build:
+    # Releases publish where the release links point: the public repository.
+    if: github.repository == 'chen08209/FlClash' && github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
@@ -16,13 +332,13 @@ jobs:
           - platform: android
             os: ubuntu-latest
           - platform: windows
-            os: windows-latest
+            os: Windows-2022
             arch: amd64
           - platform: linux
             os: ubuntu-22.04
             arch: amd64
           - platform: macos
-            os: macos-13
+            os: macos-15-intel
             arch: amd64
           - platform: macos
             os: macos-latest
@@ -30,13 +346,16 @@ jobs:
           - platform: windows
             os: windows-11-arm
             arch: arm64
+            flutter-channel: master
           - platform: linux
             os: ubuntu-24.04-arm
             arch: arm64
+            flutter-channel: master
 
     steps:
       - name: Setup rust
         if: startsWith(matrix.os, 'windows-11-arm')
+        shell: pwsh
         run: |
           Invoke-WebRequest -Uri "https://win.rustup.rs/aarch64" -OutFile rustup-init.exe
           .\rustup-init.exe -y --default-toolchain stable
@@ -52,36 +371,77 @@ jobs:
         if: startsWith(matrix.platform,'android')
         run: |
           echo "${{ secrets.KEYSTORE }}" | base64 --decode > android/app/keystore.jks
-          echo "keyAlias=${{ secrets.KEY_ALIAS }}" >> android/local.properties
-          echo "storePassword=${{ secrets.STORE_PASSWORD }}" >> android/local.properties
-          echo "keyPassword=${{ secrets.KEY_PASSWORD }}" >> android/local.properties
+          {
+            echo "keyAlias=${{ secrets.KEY_ALIAS }}"
+            echo "storePassword=${{ secrets.STORE_PASSWORD }}"
+            echo "keyPassword=${{ secrets.KEY_PASSWORD }}"
+          } >> android/local.properties
 
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
-          go-version: '1.24.0'
-          cache-dependency-path: |
-            core/go.sum
+          go-version: ${{ env.GO_VERSION }}
+          cache: ${{ env.BRANCH_CACHE }}
+          cache-dependency-path: core/go.sum
 
-      - name: Setup Flutter Master
-        if: startsWith(matrix.os, 'windows-11-arm') || startsWith(matrix.os, 'ubuntu-24.04-arm')
-        uses: subosito/flutter-action@v2
-        with:
-          channel: 'master'
-          cache: true
+      - name: Setup Gradle
+        if: startsWith(matrix.platform,'android')
+        uses: gradle/actions/setup-gradle@v6
+
+      - name: Enable git long paths (Windows)
+        if: startsWith(matrix.os, 'windows')
+        run: git config --global core.longpaths true
+
+      # Stable publishes no Windows or Linux arm64 archive; master makes the action
+      # clone the SDK at the pinned tag and let it fetch the host's own Dart SDK.
       - name: Setup Flutter
-        if: ${{ !(startsWith(matrix.os, 'windows-11-arm') || startsWith(matrix.os, 'ubuntu-24.04-arm')) }}
         uses: subosito/flutter-action@v2
         with:
-          channel: 'stable'
-          cache: true
-      #          flutter-version: 3.29.3
+          channel: ${{ matrix.flutter-channel || 'stable' }}
+          flutter-version: ${{ env.FLUTTER_VERSION }}
+          cache: ${{ env.BRANCH_CACHE }}
+
+      - name: Setup Xcode
+        if: startsWith(matrix.platform,'macos')
+        run: |
+          sudo xcode-select -s /Applications/Xcode_26.3.app || sudo xcode-select -s /Applications/Xcode_26.2.app
+          xcodebuild -version
+
+      - name: Setup NDK
+        if: startsWith(matrix.platform,'android')
+        uses: nttld/setup-ndk@v1
+        id: build-ndk
+        with:
+          ndk-version: ${{ env.NDK_VERSION }}
+          add-to-path: true
+          link-to-sdk: true
 
       - name: Get Flutter Dependency
-        run: flutter pub get
+        run: |
+          flutter --version
+          flutter pub get
+
+      # See .agents/flutter-upgrade.md before bumping FLUTTER_VERSION.
+      - name: Disable Impeller on Intel macOS
+        if: matrix.platform == 'macos' && matrix.arch == 'amd64'
+        run: plutil -replace FLTEnableImpeller -bool NO macos/Runner/Info.plist
+
+      # The core embeds this bundle and FlClashHttpOverrides.trustCoreRoots loads it for Dart.
+      # Pinned by hash, so a new bundle from https://curl.se/docs/caextract.html is a reviewed bump.
+      - name: Fetch CA certificates
+        shell: bash
+        env:
+          CA_BUNDLE: cacert-2026-09-25.pem
+          CA_BUNDLE_SHA256: a41b5d356aea97a529fe27e0f7316d2f9d946d75927476cf9cf1b90637d00505
+        run: |
+          bundle=core/Clash.Meta/component/ca/ca-certificates.crt
+          curl -fsSL --retry 3 -o "$bundle" "https://curl.se/ca/$CA_BUNDLE"
+          echo "$CA_BUNDLE_SHA256  $bundle" | sha256sum -c -
 
       - name: Setup
-        run: dart setup.dart ${{ matrix.platform }} ${{ matrix.arch && format('--arch {0}', matrix.arch) }} ${{ env.IS_STABLE == 'true' && '--env stable' || '' }}
+        env:
+          ANDROID_NDK_HOME: ${{ steps.build-ndk.outputs.ndk-path }}
+        run: dart setup.dart ${{ matrix.platform }} ${{ env.IS_STABLE == 'true' && '--env stable' || '' }} -v
 
       - name: Upload
         uses: actions/upload-artifact@v4
@@ -90,72 +450,10 @@ jobs:
           path: ./dist
           overwrite: true
 
-  changelog:
-    runs-on: ubuntu-latest
-    needs: [ build ]
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-        if: ${{ env.IS_STABLE == 'true' }}
-        with:
-          fetch-depth: 0
-          ref: refs/heads/main
-      - name: Generate
-        if: ${{ env.IS_STABLE == 'true' }}
-        run: |
-          tags=($(git tag --merged $(git rev-parse HEAD) --sort=-creatordate))
-          preTag=$(grep -oP '^## \K.*' CHANGELOG.md | head -n 1)
-          currentTag=""
-          for ((i = 0; i <= ${#tags[@]}; i++)); do
-            if (( i < ${#tags[@]} )); then
-              tag=${tags[$i]}
-            else
-              tag=""
-            fi
-            if [ -n "$currentTag" ]; then
-              if [ "$(echo -e "$currentTag\n$preTag" | sort -V | head -n 1)" == "$currentTag" ]; then
-                break
-              fi
-            fi
-            if [ -n "$currentTag" ]; then
-              echo "## $currentTag" >> NEW_CHANGELOG.md
-              echo "" >> NEW_CHANGELOG.md
-              if [ -n "$tag" ]; then
-                git log --pretty=format:"%B" "$tag..$currentTag" | awk 'NF {print "- " $0} !NF {print ""}' >> NEW_CHANGELOG.md
-              else
-                git log --pretty=format:"%B" "$currentTag" | awk 'NF {print "- " $0} !NF {print ""}' >> NEW_CHANGELOG.md
-              fi
-              echo "" >> NEW_CHANGELOG.md
-            fi
-            currentTag=$tag
-          done
-          cat CHANGELOG.md >> NEW_CHANGELOG.md
-          cat NEW_CHANGELOG.md > CHANGELOG.md
-
-      - name: Commit
-        if: ${{ env.IS_STABLE == 'true' }}
-        run: |
-          git add CHANGELOG.md
-          if ! git diff --cached --quiet; then
-            echo "Commit pushing"
-            git config --local user.email "chen08209@gmail.com"
-            git config --local user.name "chen08209"
-            git commit -m "Update changelog"
-            git push
-            if [ $? -eq 0 ]; then
-              echo "Push succeeded"
-            else
-              echo "Push failed"
-              exit 1
-            fi
-          fi
-
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
   upload:
-    permissions: write-all
-    needs: [ build ]
+    permissions:
+      contents: write
+    needs: [ build, dart, plugins, go, android, rust, windows-helper-test ]
     runs-on: ubuntu-latest
     services:
       telegram-bot-api:
@@ -178,32 +476,34 @@ jobs:
           pattern: artifact-*
           merge-multiple: true
 
-      - name: Generate release.md
+      - name: Setup Flutter
+        uses: subosito/flutter-action@v2
+        with:
+          channel: stable
+          flutter-version: ${{ env.FLUTTER_VERSION }}
+          cache: ${{ env.BRANCH_CACHE }}
+
+      - name: Install dependencies
+        run: flutter pub get
+
+      - name: Skip native build hooks
         run: |
-          tags=($(git tag --merged $(git rev-parse HEAD) --sort=-creatordate))
-          preTag=$(curl --silent "https://api.github.com/repos/chen08209/FlClash/releases/latest" | grep -Po '"tag_name": "\K.*?(?=")' || echo "")
-          currentTag=""
-          for ((i = 0; i <= ${#tags[@]}; i++)); do
-            if (( i < ${#tags[@]} )); then
-              tag=${tags[$i]}
-            else
-              tag=""
-            fi
-            if [ -n "$currentTag" ]; then
-              if [ "$(echo -e "$currentTag\n$preTag" | sort -V | head -n 1)" == "$currentTag" ]; then
-                break
-              fi
-            fi
-            if [ -n "$currentTag" ]; then
-              if [ -n "$tag" ]; then
-                git log --pretty=format:"%B" "$tag..$currentTag" | awk 'NF {print "- " $0} !NF {print ""}' >> release.md
-              else
-                git log --pretty=format:"%B" "$currentTag" | awk 'NF {print "- " $0} !NF {print ""}' >> release.md
-              fi
-              echo "" >> release.md
-            fi
-            currentTag=$tag
-          done
+          yq -i '.hooks.user_defines.setup.build_assets = false | .hooks.user_defines.rust_api.build_assets = false' pubspec.yaml
+
+      - name: Generate release notes
+        shell: bash
+        env:
+          IS_STABLE: ${{ env.IS_STABLE }}
+          TAG: ${{ github.ref_name }}
+        run: |
+          target=()
+          if [[ "$IS_STABLE" == 'true' ]]; then
+            target=(--tag "$TAG")
+          else
+            dart run tool/changelog.dart build --unreleased
+          fi
+          dart run tool/changelog.dart render release "${target[@]}" --out release.md
+          dart run tool/changelog.dart render telegram "${target[@]}" --out telegram.md
 
       - name: Push to telegram
         env:
@@ -221,12 +521,10 @@ jobs:
           sed "s|VERSION|$version|g" ./.github/release_template.md >> release.md
 
       - name: Generate sha256
-        if: env.IS_STABLE == 'true'
+        if: ${{ env.IS_STABLE == 'true' }}
         run: |
           cd ./dist
-          for file in $(find . -type f -not -name "*.sha256"); do
-            sha256sum "$file" > "${file}.sha256"
-          done  
+          sha256sum ./* > SHA256SUMS
 
       - name: Release
         if: ${{ env.IS_STABLE == 'true' }}
@@ -235,6 +533,35 @@ jobs:
           files: ./dist/*
           body_path: './release.md'
 
+      - name: Create Homebrew Cask Source Dir
+        if: ${{ env.IS_STABLE == 'true' }}
+        run: |
+          version=$(echo "${{ github.ref_name }}" | sed 's/^v//')
+          arm_sha=$(sha256sum "./dist/FlClash-${version}-macos-arm64.dmg" | awk '{print $1}')
+          amd_sha=$(sha256sum "./dist/FlClash-${version}-macos-amd64.dmg" | awk '{print $1}')
+
+          mkdir -p ./brew/Casks
+          sed \
+            -e "s|VERSION|$version|g" \
+            -e "s|ARM_SHA256|$arm_sha|g" \
+            -e "s|AMD_SHA256|$amd_sha|g" \
+            ./.github/homebrew_cask_template.rb > ./brew/Casks/flclash.rb
+
+      - name: Push to Homebrew tap
+        if: ${{ env.IS_STABLE == 'true' }}
+        uses: cpina/github-action-push-to-another-repository@v1.7.2
+        env:
+          SSH_DEPLOY_KEY: ${{ secrets.HOMEBREW_SSH_DEPLOY_KEY }}
+        with:
+          source-directory: ./brew/
+          destination-github-username: chen08209
+          destination-repository-name: homebrew-tap
+          user-name: 'chen08029'
+          user-email: 'chen08209@gmail.com'
+          target-branch: main
+          commit-message: Update Homebrew cask from ${{ github.ref_name }}
+          target-directory: /
+
       - name: Create Fdroid Source Dir
         if: ${{ env.IS_STABLE == 'true' }}
         run: |
@@ -251,9 +578,8 @@ jobs:
           source-directory: ./tmp/
           destination-github-username: chen08209
           destination-repository-name: FlClash-fdroid-repo
-          user-name: 'github-actions[bot]'
-          user-email: 'github-actions[bot]@users.noreply.github.com'
+          user-name: 'chen08029'
+          user-email: 'chen08209@gmail.com'
           target-branch: main
           commit-message: Update from ${{ github.ref_name }}
           target-directory: /tmp/
-

.github/workflows/pages.yaml

@@ -0,0 +1,81 @@
+name: pages
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - 'site/**'
+      - 'tool/build_site.sh'
+      - 'tool/render_site.mjs'
+      - '.github/workflows/pages.yaml'
+  workflow_run:
+    workflows:
+      - build
+    types:
+      - completed
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: pages
+  cancel-in-progress: false
+
+jobs:
+  tag:
+    # head_branch also names a branch push's branch, so only a tag at the built commit counts as a release.
+    if: >-
+      github.repository == 'chen08209/FlClash' &&
+      github.event_name == 'workflow_run' &&
+      github.event.workflow_run.conclusion == 'success' &&
+      startsWith(github.event.workflow_run.head_branch, 'v') &&
+      !contains(github.event.workflow_run.head_branch, '-')
+    runs-on: ubuntu-latest
+    outputs:
+      stable: ${{ steps.lookup.outputs.stable }}
+    steps:
+      - name: Look up the tag
+        id: lookup
+        env:
+          NAME: ${{ github.event.workflow_run.head_branch }}
+          SHA: ${{ github.event.workflow_run.head_sha }}
+          REMOTE: ${{ github.server_url }}/${{ github.repository }}
+        run: |
+          if git ls-remote --tags "$REMOTE" "refs/tags/$NAME" "refs/tags/$NAME^{}" | grep -q "^$SHA"; then
+            echo 'stable=true' >> "$GITHUB_OUTPUT"
+          fi
+
+  deploy:
+    needs: tag
+    if: >-
+      github.repository == 'chen08209/FlClash' &&
+      !cancelled() &&
+      (github.event_name != 'workflow_run' || needs.tag.outputs.stable == 'true')
+    runs-on: ubuntu-latest
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Assemble site
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: bash tool/build_site.sh _site
+
+      - name: Configure Pages
+        uses: actions/configure-pages@v5
+
+      - name: Upload
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: _site
+
+      - name: Deploy
+        id: deployment
+        uses: actions/deploy-pages@v4

.gitignore

@@ -21,7 +21,7 @@ migrate_working_dir/
 # The .vscode folder contains launch configuration and tasks you configure in
 # VS Code which you may wish to be included in version control, so this line
 # is commented out by default.
-#.vscode/
+.vscode/
 
 # Flutter/Dart/Pub related
 **/doc/api/
@@ -41,15 +41,40 @@ app.*.symbols
 # Obfuscation related
 app.*.map.json
 
+# Claude Code - ignore user-specific settings only
+.claude/settings.local.json
+.claude/worktrees/
+
+# Documentation (generated/planning artifacts)
+docs/
+
+
 # Android Studio will place build artifacts here
 /android/app/debug
 /android/app/profile
 /android/app/release
+/android/**/.cxx
+/android/**/build
+/android/common/**/.**/
+/android/common/local.*
+# Left in place by builds from before the gomobile Core.
+/android/core/**/includes/
+/android/core/**/cmake-build-*/
+/android/core/**/jniLibs/
 
-
-
-#libclash
+#FlClash
 /libclash/
-
-#jniLibs
 /android/app/src/main/jniLibs/
+/services/helper/target
+/macos/**/Package.resolved
+/macos/build/
+/env.json
+/core_sha256.json
+/plugins/rust_api/.claude/
+/issue-triage/
+devtools_options.yaml
+
+# FVM Version Cache
+.fvm/
+.fvmrc
+/coverage/lcov.info

.gitmodules

@@ -2,9 +2,3 @@
 	path = core/Clash.Meta
 	url = git@github.com:chen08209/Clash.Meta.git
 	branch = FlClash
-[submodule "plugins/flutter_distributor"]
-	path = plugins/flutter_distributor
-	url = git@github.com:chen08209/flutter_distributor.git
-	branch = FlClash
-
-

.mcp.json

@@ -0,0 +1,12 @@
+{
+  "mcpServers": {
+    "codegraph": {
+      "type": "stdio",
+      "command": "codegraph",
+      "args": [
+        "serve",
+        "--mcp"
+      ]
+    }
+  }
+}

.metadata

@@ -1,11 +1,11 @@
 # This file tracks properties of this Flutter project.
 # Used by Flutter tool to assess capabilities and perform upgrades etc.
 #
-# This file should be version controlled.
+# This file should be version controlled and should not be manually edited.
 
 version:
-  revision: 796c8ef79279f9c774545b3771238c3098dbefab
-  channel: stable
+  revision: "adc901062556672b4138e18a4dc62a4be8f4b3c2"
+  channel: "stable"
 
 project_type: app
 
@@ -13,26 +13,11 @@ project_type: app
 migration:
   platforms:
     - platform: root
-      create_revision: 796c8ef79279f9c774545b3771238c3098dbefab
-      base_revision: 796c8ef79279f9c774545b3771238c3098dbefab
-    - platform: android
-      create_revision: 796c8ef79279f9c774545b3771238c3098dbefab
-      base_revision: 796c8ef79279f9c774545b3771238c3098dbefab
-    - platform: ios
-      create_revision: 796c8ef79279f9c774545b3771238c3098dbefab
-      base_revision: 796c8ef79279f9c774545b3771238c3098dbefab
-    - platform: linux
-      create_revision: 796c8ef79279f9c774545b3771238c3098dbefab
-      base_revision: 796c8ef79279f9c774545b3771238c3098dbefab
-    - platform: macos
-      create_revision: 796c8ef79279f9c774545b3771238c3098dbefab
-      base_revision: 796c8ef79279f9c774545b3771238c3098dbefab
-    - platform: web
-      create_revision: 796c8ef79279f9c774545b3771238c3098dbefab
-      base_revision: 796c8ef79279f9c774545b3771238c3098dbefab
+      create_revision: adc901062556672b4138e18a4dc62a4be8f4b3c2
+      base_revision: adc901062556672b4138e18a4dc62a4be8f4b3c2
     - platform: windows
-      create_revision: 796c8ef79279f9c774545b3771238c3098dbefab
-      base_revision: 796c8ef79279f9c774545b3771238c3098dbefab
+      create_revision: adc901062556672b4138e18a4dc62a4be8f4b3c2
+      base_revision: adc901062556672b4138e18a4dc62a4be8f4b3c2
 
   # User provided section
 

.pre-commit-config.yaml

@@ -0,0 +1,26 @@
+repos:
+  - repo: local
+    hooks:
+      - id: dart-format
+        name: dart format
+        entry: dart format
+        language: system
+        files: \.dart$
+        stages: [pre-commit]
+      - id: comment-density
+        name: comment density
+        entry: tool/hooks/comment_density.sh
+        language: system
+        files: \.(dart|kt|kts|swift|go|rs|java|cpp|cc|h|hpp|gradle|ya?ml)$
+        stages: [pre-commit]
+      - id: flutter-analyze
+        name: flutter analyze (pre-push)
+        entry: flutter analyze --no-fatal-infos
+        language: system
+        pass_filenames: false
+        stages: [pre-push]
+      - id: commit-msg-format
+        name: conventional commit message
+        entry: tool/hooks/commit_msg.sh
+        language: system
+        stages: [commit-msg]

.run/main.dart.run.xml

@@ -0,0 +1,7 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="main.dart" type="FlutterRunConfigurationType" factoryName="Flutter">
+    <option name="additionalArgs" value="--dart-define-from-file env.json" />
+    <option name="filePath" value="$PROJECT_DIR$/lib/main.dart" />
+    <method v="2" />
+  </configuration>
+</component>

.run/main_safe_mode.run.xml

@@ -0,0 +1,7 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="main.dart (safe mode)" type="FlutterRunConfigurationType" factoryName="Flutter">
+    <option name="additionalArgs" value="--dart-define-from-file env.json --dart-define=SAFE_MODE=true" />
+    <option name="filePath" value="$PROJECT_DIR$/lib/main.dart" />
+    <method v="2" />
+  </configuration>
+</component>

.zed/debug.json

@@ -0,0 +1,24 @@
+[
+  {
+    "label": "Flutter App (With Env)",
+    "adapter": "Dart",
+    "type": "flutter",
+    "request": "launch",
+    "program": "lib/main.dart",
+    "cwd": "$ZED_WORKTREE_ROOT",
+    "toolArgs": ["--dart-define-from-file", "env.json"],
+  },
+  {
+    "label": "Flutter App (Safe Mode)",
+    "adapter": "Dart",
+    "type": "flutter",
+    "request": "launch",
+    "program": "lib/main.dart",
+    "cwd": "$ZED_WORKTREE_ROOT",
+    "toolArgs": [
+      "--dart-define-from-file",
+      "env.json",
+      "--dart-define=SAFE_MODE=true",
+    ],
+  },
+]

.zed/settings.json

@@ -0,0 +1,13 @@
+{
+  "lsp": {
+    "gopls": {
+      "binary": {
+        "env": {
+          "CGO_ENABLED": "0",
+          // "GOOS": "android",
+          // "GOARCH": "arm64",
+        },
+      },
+    },
+  },
+}

.zed/tasks.json

@@ -0,0 +1,21 @@
+[
+  {
+    "label": "flutter run (With Env)",
+    "command": "flutter",
+    "args": ["run", "--dart-define-from-file", "env.json"],
+    "cwd": "$ZED_WORKTREE_ROOT",
+    "use_new_terminal": true,
+  },
+  {
+    "label": "flutter run (Safe Mode)",
+    "command": "flutter",
+    "args": [
+      "run",
+      "--dart-define-from-file",
+      "env.json",
+      "--dart-define=SAFE_MODE=true",
+    ],
+    "cwd": "$ZED_WORKTREE_ROOT",
+    "use_new_terminal": true,
+  },
+]

AGENTS.md

@@ -0,0 +1,77 @@
+# AGENTS.md
+
+This file is the entry point for AI coding agents working in this repository. Keep it small: detailed guidance lives under
+`.agents/`, and discoverable repo skills live under `.agents/skills/*/SKILL.md`.
+
+## Start Here
+
+Read these files before making changes:
+
+- [.agents/project.md](.agents/project.md): project overview, versions, and build dependencies.
+- [.agents/commands.md](.agents/commands.md): build, development, code generation, and test commands.
+- [.agents/rules.md](.agents/rules.md): lint, testing, generated-code, and workflow rules.
+
+Read these only when the task touches their area:
+
+- [.agents/architecture.md](.agents/architecture.md): core integration, providers, database, managers, build system, and
+  local plugins.
+- [.agents/setting-changes.md](.agents/setting-changes.md): whether a changed setting is patched live, re-applies the
+  profile, or asks for an Android VPN restart.
+- [.agents/surfaces.md](.agents/surfaces.md): fill levels, selection and status colors, and the few borders that
+  remain, for any change to how a surface is colored.
+- [.agents/agent-config.md](.agents/agent-config.md): how to choose between `AGENTS.md`, `.agents`, skills, Codex config,
+  command rules, and hooks.
+- [.agents/worktrees.md](.agents/worktrees.md): worktree hygiene across Claude Code, Codex, and Gemini.
+- [.agents/flutter-upgrade.md](.agents/flutter-upgrade.md): SDK-pinned workarounds to recheck before changing the
+  Flutter version.
+- [.agents/skills.md](.agents/skills.md): index of repo-scoped skills in `.agents/skills/`.
+
+## Highest Priority Rules
+
+- When the user explicitly requests a scoped, low-risk change, inspect the relevant context and implement it directly.
+  Do not require brainstorming, design documents, implementation plans, multiple-option proposals, or repeated confirmation.
+  Ask only when material ambiguity, destructive impact, additional authority, or scope expansion could change the result.
+- The request sets the scope. A pre-existing bug, cleanup, or refactor the task did not ask for is a follow-up in the
+  summary, not part of the change. Edit a file surgically when a rewrite would give the same result, keep scratch checks
+  out of the repository, and commit tests only where the task asks for them or the neighbouring code already keeps them.
+- Comments are allowed and sometimes necessary; excess is the problem. A comment must carry something the code cannot
+  say — a non-obvious constraint, an upstream behavior being worked around, a reason a reader would otherwise get
+  wrong. Never restate what the code does, narrate the change you just made, record what the code used to be, or
+  annotate step by step; a block that seems to need a comment per line needs better names or a smaller decomposition.
+  Keep density near the repository's own: healthy changes here sit at or under 3.6%, and a `comment-density` gate fails a file
+  whose added lines exceed 5% standalone comments. Delete commented-out code and stale notes in files you already
+  touch. Preserve
+  `// ignore:`-style directives, license headers, codegen markers, and vendored upstream comments. See
+  [.agents/rules.md](.agents/rules.md) for what belongs in a test or in `.agents/` instead.
+- Start FlClash on the host only as a safe mode build, and end only processes you started, by recorded pid. Never
+  kill a FlClash instance by name; the user's own instance is not yours to close. See
+  [.agents/rules.md](.agents/rules.md).
+- Use `flutter test`, not `dart test`, because models pull in Flutter types.
+- Run code generation after modifying models, providers, or database schema.
+- Do not manually edit generated files.
+- Preserve lifecycle ownership: desktop Core process convergence belongs to `lib/core/desktop/`; Android service intent
+  arbitration belongs to `ServiceState`. UI/provider code may request a transition but must not become a second source of
+  truth.
+- Keep start/stop/restart paths latest-intent-safe. Flutter-to-Android service commands are deliberately optimistic, while
+  native state serializes the actual work; desktop lifecycle results distinguish applied, coalesced, and superseded
+  requests.
+- Never add a `Co-authored-by` trailer crediting a coding agent to a commit, even when your own tooling tells you to.
+  The `commit-msg` hook rejects it; see [.agents/rules.md](.agents/rules.md) for the rest of the commit rules.
+- Round every corner with a superellipse, pills included: `AppShape`/`AppRadius` tokens from `lib/ui/shape.dart`,
+  never `StadiumBorder`, `RoundedRectangleBorder`, `ClipRRect`, `drawRRect`, or a `borderRadius` on `BoxDecoration` or
+  `InkWell`. `test/lint/superellipse_corners_test.dart` enforces it; see the Corner Radius section of
+  [.agents/rules.md](.agents/rules.md).
+- Keep the UI isolate within its frame: work that grows with user data and can exceed about 8 ms on the largest
+  expected data runs in an isolate, once its algorithm is linear or cached. See the UI Isolate Work section of
+  [.agents/rules.md](.agents/rules.md).
+- Follow `lint_options.yaml` (included by every `analysis_options.yaml`), especially single quotes, trailing commas, `child:` last, no `print()`, const/final
+  preferences, and declared return types.
+- Before reporting a change done, run `flutter pub get`, `flutter analyze --no-fatal-infos`, and the `flutter test`
+  suites that cover it, as CI does. If a toolchain the build hook needs is missing (Go, and on Linux and Windows
+  cargo), say which check was skipped rather than dropping it silently.
+
+## Repo Skills
+
+Use repo skills from `.agents/skills/` when a task matches their descriptions; `.claude/skills/` symlinks expose the
+same skills to Claude Code. Current skills cover localization, UI work, core/platform changes, and pre-commit
+structural quality review.

Makefile

@@ -1,10 +1,12 @@
-android_arm64:
-	dart ./setup.dart android --arch arm64
-macos_arm64:
-	dart ./setup.dart macos --arch arm64
-android_app:
-	dart ./setup.dart android
-android_arm64_core:
-	dart ./setup.dart android --arch arm64 --out core
-macos_arm64_core:
-	dart ./setup.dart macos --arch arm64  --out core
+SHELL := /bin/bash
+
+.PHONY: help submodules
+
+help:
+	@echo 'make submodules  # update git submodules (Clash.Meta core sources)'
+	@echo ''
+	@echo 'The Go core and Rust helper build automatically through the setup build'
+	@echo 'hook during flutter build; see .agents/commands.md.'
+
+submodules:
+	git submodule update --init --recursive

README.md

@@ -1,127 +1,138 @@
-<div>
+<div align="center">
 
-[**简体中文**](README_zh_CN.md)
+<img src="assets/images/icon.png" alt="FlClash" width="88">
+
+# FlClash
+
+A multi-platform proxy client based on ClashMeta. Simple to use, open source and ad-free.
+
+**English** · [简体中文](README_zh_CN.md)
+
+[![Release](https://img.shields.io/github/v/release/chen08209/FlClash?style=flat-square&label=release)](https://github.com/chen08209/FlClash/releases/latest)
+[![Downloads](https://img.shields.io/github/downloads/chen08209/FlClash/total?style=flat-square&logo=github)](https://github.com/chen08209/FlClash/releases)
+[![License](https://img.shields.io/github/license/chen08209/FlClash?style=flat-square)](LICENSE)
+[![Telegram](https://img.shields.io/badge/Telegram-channel-26A5E4?style=flat-square&logo=telegram&logoColor=white)](https://t.me/FlClash)
+
+[Website](https://chen08209.github.io/FlClash) · [Download](#download) · [Changelog](CHANGELOG.md) · [Build from source](#build-from-source)
 
 </div>
 
-## FlClash
-
-[![Downloads](https://img.shields.io/github/downloads/chen08209/FlClash/total?style=flat-square&logo=github)](https://github.com/chen08209/FlClash/releases/)[![Last Version](https://img.shields.io/github/release/chen08209/FlClash/all.svg?style=flat-square)](https://github.com/chen08209/FlClash/releases/)[![License](https://img.shields.io/github/license/chen08209/FlClash?style=flat-square)](LICENSE)
-
-[![Channel](https://img.shields.io/badge/Telegram-Channel-blue?style=flat-square&logo=telegram)](https://t.me/FlClash)
-
-A multi-platform proxy client based on ClashMeta, simple and easy to use, open-source and ad-free.
-
-on Desktop:
-<p style="text-align: center;">
-    <img alt="desktop" src="snapshots/desktop.gif">
-</p>
-
-on Mobile:
-<p style="text-align: center;">
-    <img alt="mobile" src="snapshots/mobile.gif">
+<p align="center">
+  <picture>
+    <source media="(prefers-color-scheme: dark)" srcset="snapshots/preview-dark.png">
+    <img alt="FlClash dashboard on a MacBook and a phone" src="snapshots/preview.png" width="92%">
+  </picture>
 </p>
 
 ## Features
 
-✈️ Multi-platform: Android, Windows, macOS and Linux
-
-💻 Adaptive multiple screen sizes, Multiple color themes available
-
-💡 Based on Material You Design, [Surfboard](https://github.com/getsurfboard/surfboard)-like UI
-
-☁️ Supports data sync via WebDAV
-
-✨ Support subscription link, Dark mode
-
-## Use
-
-### Linux
-
-⚠️ Make sure to install the following dependencies before using them
-
-   ```bash
-    sudo apt-get install libayatana-appindicator3-dev
-    sudo apt-get install libkeybinder-3.0-dev
-   ```
-
-### Android
-
-Support the following actions
-
-   ```bash
-    com.follow.clash.action.START
-    
-    com.follow.clash.action.STOP
-    
-    com.follow.clash.action.TOGGLE
-   ```
+- **One app for Android, Windows, macOS and Linux**, with x64 and ARM64 builds on the desktop.
+- **mihomo (Clash.Meta) core** with rule routing, proxy groups, latency tests, system proxy and TUN mode.
+- **Profiles** from a subscription link or a file, with a built-in editor, override scripts, and custom rules,
+  proxies and proxy groups.
+- **Live views** of connections, requests, DNS queries and logs.
+- **Material You design with Apple-style interaction**: dynamic color, light and dark themes, continuous corners,
+  sheets that snap between heights, and layouts that adapt from phones to desktops.
+- **Backup and restore** through WebDAV or a local file.
+- **Platform touches**: a Quick Settings tile, per-app proxy and Android TV support on Android; a tray menu and
+  global hotkeys on the desktop.
+- **Open source and ad-free**, licensed under GPL-3.0.
 
 ## Download
 
-<a href="https://chen08209.github.io/FlClash-fdroid-repo/repo?fingerprint=789D6D32668712EF7672F9E58DEEB15FBD6DCEEC5AE7A4371EA72F2AAE8A12FD"><img alt="Get it on F-Droid" src="snapshots/get-it-on-fdroid.svg" width="200px"/></a> <a href="https://github.com/chen08209/FlClash/releases"><img alt="Get it on GitHub" src="snapshots/get-it-on-github.svg" width="200px"/></a>
+Get the latest build from [GitHub Releases](https://github.com/chen08209/FlClash/releases/latest), or open the
+[website](https://chen08209.github.io/FlClash#download), which picks the right file for your device.
 
-## Build
+| Platform | Packages | Notes |
+| --- | --- | --- |
+| Android | APK for `arm64-v8a`, `armeabi-v7a` and `x86_64` | Most phones use `arm64-v8a`. Also on the F-Droid repository below. |
+| Windows 10 and later | Installer (`.exe`) or portable `.zip`, for x64 and ARM64 | Pick ARM64 on Snapdragon and other ARM laptops. |
+| macOS 12 and later | DMG for Apple Silicon and Intel | Also on Homebrew. |
+| Linux | `.deb`, `.rpm` and AppImage, for x64 and ARM64 | See the tray note below. |
 
-1. Update submodules
-   ```bash
-   git submodule update --init --recursive
-   ```
+<p>
+  <a href="https://chen08209.github.io/FlClash-fdroid-repo/repo?fingerprint=789D6D32668712EF7672F9E58DEEB15FBD6DCEEC5AE7A4371EA72F2AAE8A12FD"><img alt="Get it on F-Droid" src="snapshots/get-it-on-fdroid.svg" height="56"></a>
+  <a href="https://github.com/chen08209/FlClash/releases/latest"><img alt="Get it on GitHub" src="snapshots/get-it-on-github.svg" height="56"></a>
+</p>
 
-2. Install `Flutter` and `Golang` environment
+**Homebrew**
 
-3. Build Application
+```bash
+brew tap chen08209/tap
+brew install --cask flclash
+```
 
-    - android
+**Linux tray icon**
 
-        1. Install  `Android SDK` ,  `Android NDK`
+The `.deb` package installs its own dependencies. With the AppImage or the `.rpm`, install the AyatanaAppIndicator
+library so the tray icon can show:
 
-        2. Set `ANDROID_NDK` environment variables
+```bash
+sudo apt-get install libayatana-appindicator3-1   # Debian and Ubuntu
+sudo dnf install libayatana-appindicator-gtk3     # Fedora
+```
 
-        3. Run Build script
+## Usage
 
-           ```bash
-           dart .\setup.dart android
-           ```
+**Import a profile from a link.** Opening a link in this form imports the subscription into FlClash. The `clashmeta://`
+and `flclash://` schemes work the same way.
 
-    - windows
+```text
+clash://install-config?url=<URL-encoded subscription link>
+```
 
-        1. You need a windows client
+**Automate on Android.** Tasker, MacroDroid and similar apps can start, stop or toggle the proxy by starting an
+activity with one of these actions:
 
-        2. Install  `Gcc`，`Inno Setup`
+```text
+com.follow.clash.action.START
+com.follow.clash.action.STOP
+com.follow.clash.action.TOGGLE
+```
 
-        3. Run build script
+From a computer, the same works over adb:
 
-           ```bash
-           dart .\setup.dart windows --arch <arm64 | amd64>
-           ```
+```bash
+adb shell am start -a com.follow.clash.action.TOGGLE
+```
 
-    - linux
+## Build from source
 
-        1. You need a linux client
+You need [Flutter](https://docs.flutter.dev/get-started/install) 3.47 (release builds use 3.47.6),
+[Go](https://go.dev/dl/) 1.27 and [Rust](https://rustup.rs/) installed through rustup. Each platform builds on its own
+host, except Android, which builds anywhere.
 
-        2. Run build script
+```bash
+git clone --recursive https://github.com/chen08209/FlClash.git
+cd FlClash
+flutter pub get
+dart setup.dart android   # or windows, macos, linux
+```
 
-           ```bash
-           dart .\setup.dart linux --arch <arm64 | amd64>
-           ```
+Packages land in `dist/`. The Go core and the Rust libraries are compiled as part of the Flutter build.
 
-    - macOS
+| Platform | Also needed |
+| --- | --- |
+| Android | Android SDK with the NDK. Add `--arch arm64` to build a single ABI. |
+| Windows | GCC (MinGW-w64) for the core and [Inno Setup](https://jrsoftware.org/isinfo.php) 6 for the installer. |
+| macOS | Xcode and Node.js. The script installs `appdmg` through npm. |
+| Linux | Debian or Ubuntu. The script installs the build packages with apt and downloads `appimagetool`. |
 
-        1. You need a macOS client
+Run `dart setup.dart --help` for the remaining options, such as `--targets` to build only some package formats.
 
-        2. Run build script
+## Support
 
-           ```bash
-           dart .\setup.dart macos --arch <arm64 | amd64>
-           ```
+Starring the repository is the easiest way to support the project. Questions and announcements go to the
+[Telegram channel](https://t.me/FlClash); bugs and feature requests go to
+[GitHub Issues](https://github.com/chen08209/FlClash/issues).
 
-## Star
+<a href="https://star-history.com/#chen08209/FlClash&Date">
+  <picture>
+    <source media="(prefers-color-scheme: dark)" srcset="https://api.star-history.com/svg?repos=chen08209/FlClash&type=Date&theme=dark">
+    <img alt="Star history" src="https://api.star-history.com/svg?repos=chen08209/FlClash&type=Date" width="640">
+  </picture>
+</a>
 
-The easiest way to support developers is to click on the star (⭐) at the top of the page.
+## License
 
-<p style="text-align: center;">
-    <a href="https://api.star-history.com/svg?repos=chen08209/FlClash&Date">
-        <img alt="start" width=50% src="https://api.star-history.com/svg?repos=chen08209/FlClash&Date"/>
-    </a>
-</p>
+FlClash is released under the [GPL-3.0 license](LICENSE).

README_zh_CN.md

@@ -1,127 +1,130 @@
-<div>
+<div align="center">
 
-[**English**](README.md)
+<img src="assets/images/icon.png" alt="FlClash" width="88">
+
+# FlClash
+
+基于 ClashMeta 的多平台代理客户端，简单易用，开源无广告。
+
+[English](README.md) · **简体中文**
+
+[![Release](https://img.shields.io/github/v/release/chen08209/FlClash?style=flat-square&label=release)](https://github.com/chen08209/FlClash/releases/latest)
+[![Downloads](https://img.shields.io/github/downloads/chen08209/FlClash/total?style=flat-square&logo=github)](https://github.com/chen08209/FlClash/releases)
+[![License](https://img.shields.io/github/license/chen08209/FlClash?style=flat-square)](LICENSE)
+[![Telegram](https://img.shields.io/badge/Telegram-channel-26A5E4?style=flat-square&logo=telegram&logoColor=white)](https://t.me/FlClash)
+
+[官网](https://chen08209.github.io/FlClash/zh) · [下载](#下载) · [更新日志](CHANGELOG.md) · [从源码构建](#从源码构建)
 
 </div>
 
-## FlClash
-
-[![Downloads](https://img.shields.io/github/downloads/chen08209/FlClash/total?style=flat-square&logo=github)](https://github.com/chen08209/FlClash/releases/)[![Last Version](https://img.shields.io/github/release/chen08209/FlClash/all.svg?style=flat-square)](https://github.com/chen08209/FlClash/releases/)[![License](https://img.shields.io/github/license/chen08209/FlClash?style=flat-square)](LICENSE)
-
-[![Channel](https://img.shields.io/badge/Telegram-Channel-blue?style=flat-square&logo=telegram)](https://t.me/FlClash)
-
-基于ClashMeta的多平台代理客户端，简单易用，开源无广告。
-
-on Desktop:
-<p style="text-align: center;">
-    <img alt="desktop" src="snapshots/desktop.gif">
+<p align="center">
+  <picture>
+    <source media="(prefers-color-scheme: dark)" srcset="snapshots/preview-dark.png">
+    <img alt="FlClash 在 MacBook 与手机上的仪表盘" src="snapshots/preview.png" width="92%">
+  </picture>
 </p>
 
-on Mobile:
-<p style="text-align: center;">
-    <img alt="mobile" src="snapshots/mobile.gif">
+## 功能
+
+- **一个应用覆盖 Android、Windows、macOS 和 Linux**，桌面端同时提供 x64 与 ARM64 版本。
+- **mihomo（Clash.Meta）内核**：规则分流、代理组、延迟测试、系统代理与 TUN 模式。
+- **配置管理**：通过订阅链接或文件导入配置，内置编辑器，支持覆写脚本以及自定义规则、代理和代理组。
+- **实时查看**连接、请求、DNS 查询和日志。
+- **Material You 设计，融合 Apple 式交互**：支持动态取色、浅色与深色主题，连续曲率圆角，弹出面板可在几档高度间吸附，布局随屏幕从手机到桌面自适应。
+- **备份与恢复**：通过 WebDAV 或本地文件。
+- **平台细节**：Android 上有快捷设置磁贴、分应用代理和 Android TV 支持；桌面端有托盘菜单和全局快捷键。
+- **开源无广告**，以 GPL-3.0 协议发布。
+
+## 下载
+
+从 [GitHub Releases](https://github.com/chen08209/FlClash/releases/latest) 获取最新版本，或打开
+[官网](https://chen08209.github.io/FlClash/zh#download)，它会自动为你的设备选好安装包。
+
+| 平台 | 安装包 | 说明 |
+| --- | --- | --- |
+| Android | `arm64-v8a`、`armeabi-v7a`、`x86_64` 三种 APK | 绝大多数手机选 `arm64-v8a`。也可以通过下方的 F-Droid 仓库安装。 |
+| Windows 10 及以上 | 安装版（`.exe`）或便携版（`.zip`），分 x64 与 ARM64 | 骁龙等 ARM 架构笔记本选 ARM64。 |
+| macOS 12 及以上 | Apple Silicon 与 Intel 两种 DMG | 也可以通过 Homebrew 安装。 |
+| Linux | `.deb`、`.rpm` 和 AppImage，分 x64 与 ARM64 | 托盘依赖见下方说明。 |
+
+<p>
+  <a href="https://chen08209.github.io/FlClash-fdroid-repo/repo?fingerprint=789D6D32668712EF7672F9E58DEEB15FBD6DCEEC5AE7A4371EA72F2AAE8A12FD"><img alt="Get it on F-Droid" src="snapshots/get-it-on-fdroid.svg" height="56"></a>
+  <a href="https://github.com/chen08209/FlClash/releases/latest"><img alt="Get it on GitHub" src="snapshots/get-it-on-github.svg" height="56"></a>
 </p>
 
-## Features
+**Homebrew**
 
-✈️ 多平台: Android, Windows, macOS and Linux
+```bash
+brew tap chen08209/tap
+brew install --cask flclash
+```
 
-💻 自适应多个屏幕尺寸,多种颜色主题可供选择
+**Linux 托盘图标**
 
-💡 基本 Material You 设计, 类[Surfboard](https://github.com/getsurfboard/surfboard)用户界面
+`.deb` 安装包会自动安装所需依赖。使用 AppImage 或 `.rpm` 时，需要先安装 AyatanaAppIndicator 库，托盘图标才能显示：
 
-☁️ 支持通过WebDAV同步数据
+```bash
+sudo apt-get install libayatana-appindicator3-1   # Debian 与 Ubuntu
+sudo dnf install libayatana-appindicator-gtk3     # Fedora
+```
 
-✨ 支持一键导入订阅, 深色模式
+## 使用
 
-## Use
+**通过链接导入配置。** 打开下面格式的链接，即可把订阅导入 FlClash。`clashmeta://` 和 `flclash://` 开头的链接同样可用。
 
-### Linux
+```text
+clash://install-config?url=<经过 URL 编码的订阅链接>
+```
 
-⚠️ 使用前请确保安装以下依赖
+**Android 自动化。** Tasker、MacroDroid 等应用可以用下面的 Action 启动 Activity，从而启动、停止或切换代理：
 
-   ```bash
-    sudo apt-get install libayatana-appindicator3-dev
-    sudo apt-get install libkeybinder-3.0-dev
-   ```
+```text
+com.follow.clash.action.START
+com.follow.clash.action.STOP
+com.follow.clash.action.TOGGLE
+```
 
-### Android
+在电脑上也可以通过 adb 触发：
 
-支持下列操作
+```bash
+adb shell am start -a com.follow.clash.action.TOGGLE
+```
 
-   ```bash
-    com.follow.clash.action.START
-    
-    com.follow.clash.action.STOP
-    
-    com.follow.clash.action.TOGGLE
-   ```
+## 从源码构建
 
-## Download
+需要 [Flutter](https://docs.flutter.dev/get-started/install) 3.47（正式版构建使用 3.47.6）、[Go](https://go.dev/dl/) 1.27，
+以及通过 rustup 安装的 [Rust](https://rustup.rs/)。桌面端需要在对应系统上构建，Android 在任意系统上都能构建。
 
-<a href="https://chen08209.github.io/FlClash-fdroid-repo/repo?fingerprint=789D6D32668712EF7672F9E58DEEB15FBD6DCEEC5AE7A4371EA72F2AAE8A12FD"><img alt="Get it on F-Droid" src="snapshots/get-it-on-fdroid.svg" width="200px"/></a> <a href="https://github.com/chen08209/FlClash/releases"><img alt="Get it on GitHub" src="snapshots/get-it-on-github.svg" width="200px"/></a>
+```bash
+git clone --recursive https://github.com/chen08209/FlClash.git
+cd FlClash
+flutter pub get
+dart setup.dart android   # 或 windows、macos、linux
+```
 
-## Build
+安装包输出到 `dist/`。Go 内核和 Rust 库会在 Flutter 构建过程中一并编译。
 
-1. 更新 submodules
-   ```bash
-   git submodule update --init --recursive
-   ```
+| 平台 | 额外依赖 |
+| --- | --- |
+| Android | 带 NDK 的 Android SDK。加上 `--arch arm64` 可以只构建单个 ABI。 |
+| Windows | 编译内核用的 GCC（MinGW-w64），以及打包安装程序用的 [Inno Setup](https://jrsoftware.org/isinfo.php) 6。 |
+| macOS | Xcode 与 Node.js。脚本会通过 npm 安装 `appdmg`。 |
+| Linux | Debian 或 Ubuntu。脚本会用 apt 安装构建所需的软件包，并下载 `appimagetool`。 |
 
-2. 安装 `Flutter` 以及 `Golang` 环境
+其余选项可以运行 `dart setup.dart --help` 查看，例如用 `--targets` 只构建部分安装包格式。
 
-3. 构建应用
+## 支持
 
-    - android
+给仓库点一个 Star 是支持项目最简单的方式。问题讨论和更新通知请关注 [Telegram 频道](https://t.me/FlClash)，
+Bug 与功能建议请提交到 [GitHub Issues](https://github.com/chen08209/FlClash/issues)。
 
-        1. 安装  `Android SDK` ,  `Android NDK`
+<a href="https://star-history.com/#chen08209/FlClash&Date">
+  <picture>
+    <source media="(prefers-color-scheme: dark)" srcset="https://api.star-history.com/svg?repos=chen08209/FlClash&type=Date&theme=dark">
+    <img alt="Star history" src="https://api.star-history.com/svg?repos=chen08209/FlClash&type=Date" width="640">
+  </picture>
+</a>
 
-        2. 设置 `ANDROID_NDK` 环境变量
+## 许可证
 
-        3. 运行构建脚本
-
-           ```bash
-           dart .\setup.dart android
-           ```
-
-    - windows
-
-        1. 你需要一个windows客户端
-
-        2. 安装 `Gcc`，`Inno Setup`
-
-        3. 运行构建脚本
-
-           ```bash
-           dart .\setup.dart windows --arch <arm64 | amd64>
-           ```
-
-    - linux
-
-        1. 你需要一个linux客户端
-
-        2. 运行构建脚本
-
-           ```bash
-           dart .\setup.dart linux --arch <arm64 | amd64>
-           ```
-
-    - macOS
-
-        1. 你需要一个macOS客户端
-
-        2. 运行构建脚本
-
-           ```bash
-           dart .\setup.dart macos --arch <arm64 | amd64>
-           ```
-
-## Star History
-
-支持开发者的最简单方式是点击页面顶部的星标（⭐）。
-
-<p style="text-align: center;">
-    <a href="https://api.star-history.com/svg?repos=chen08209/FlClash&Date">
-        <img alt="start" width=50% src="https://api.star-history.com/svg?repos=chen08209/FlClash&Date"/>
-    </a>
-</p>
+FlClash 以 [GPL-3.0 协议](LICENSE)发布。

analysis_options.yaml

@@ -1,10 +1,16 @@
-include: package:flutter_lints/flutter.yaml
+include: lint_options.yaml
+
 analyzer:
   exclude:
+    - build/**
     - lib/l10n/intl/**
+    - lib/**/generated/**
+    - plugins/**
+    - android/**
+    - ios/**
+    - web/**
+    - windows/**
+    - macos/**
+    - linux/**
   errors:
     invalid_annotation_target: ignore
-
-linter:
-  rules:
-    prefer_single_quotes: true

android/app/build.gradle.kts

@@ -3,33 +3,30 @@ import java.util.Properties
 
 plugins {
     id("com.android.application")
-    id("kotlin-android")
     id("dev.flutter.flutter-gradle-plugin")
 }
 
-val localPropertiesFile = rootProject.file("local.properties")
 val localProperties = Properties().apply {
+    val localPropertiesFile = rootProject.file("local.properties")
     if (localPropertiesFile.exists()) {
         localPropertiesFile.inputStream().use { load(it) }
     }
 }
 
-val mStoreFile: File = file("keystore.jks")
-val mStorePassword: String? = localProperties.getProperty("storePassword")
-val mKeyAlias: String? = localProperties.getProperty("keyAlias")
-val mKeyPassword: String? = localProperties.getProperty("keyPassword")
-val isRelease = mStoreFile.exists()
-        && mStorePassword != null
-        && mKeyAlias != null
-        && mKeyPassword != null
+val releaseStoreFile = file("keystore.jks")
+val releaseStorePassword = localProperties.getProperty("storePassword")
+val releaseKeyAlias = localProperties.getProperty("keyAlias")
+val releaseKeyPassword = localProperties.getProperty("keyPassword")
+val hasReleaseSigning = releaseStoreFile.exists() &&
+    releaseStorePassword != null &&
+    releaseKeyAlias != null &&
+    releaseKeyPassword != null
 
 android {
     namespace = "com.follow.clash"
     compileSdk = libs.versions.compileSdk.get().toInt()
     ndkVersion = libs.versions.ndkVersion.get()
 
-
-
     compileOptions {
         sourceCompatibility = JavaVersion.VERSION_17
         targetCompatibility = JavaVersion.VERSION_17
@@ -44,12 +41,12 @@ android {
     }
 
     signingConfigs {
-        if (isRelease) {
+        if (hasReleaseSigning) {
             create("release") {
-                storeFile = mStoreFile
-                storePassword = mStorePassword
-                keyAlias = mKeyAlias
-                keyPassword = mKeyPassword
+                storeFile = releaseStoreFile
+                storePassword = releaseStorePassword
+                keyAlias = releaseKeyAlias
+                keyPassword = releaseKeyPassword
             }
         }
     }
@@ -63,24 +60,30 @@ android {
     buildTypes {
         debug {
             isMinifyEnabled = false
-            applicationIdSuffix = ".debug"
+            applicationIdSuffix = ".dev"
         }
 
         release {
             isMinifyEnabled = true
             isShrinkResources = true
-            signingConfig = if (isRelease) {
-                signingConfigs.getByName("release")
+            if (hasReleaseSigning) {
+                signingConfig = signingConfigs.getByName("release")
             } else {
-                signingConfigs.getByName("debug")
+                signingConfig = signingConfigs.getByName("debug")
+                applicationIdSuffix = ".dev"
             }
 
             proguardFiles(
                 getDefaultProguardFile("proguard-android-optimize.txt"),
-                "proguard-rules.pro"
+                "proguard-rules.pro",
             )
         }
     }
+
+    sourceSets {
+        // Unit tests live under android/tests/ instead of each module's src/test.
+        getByName("test").java.setSrcDirs(listOf("../tests/app"))
+    }
 }
 
 kotlin {
@@ -96,9 +99,12 @@ flutter {
 dependencies {
     implementation(project(":service"))
     implementation(project(":common"))
+    implementation(project(":core"))
     implementation(libs.core.splashscreen)
     implementation(libs.gson)
     implementation(libs.smali.dexlib2) {
         exclude(group = "com.google.guava", module = "guava")
     }
-}
+    testImplementation(libs.junit)
+    testImplementation(libs.kotlinx.coroutines.test)
+}

android/app/proguard-rules.pro

@@ -1,4 +1,4 @@
 
--keep class com.follow.clash.models.**{ *; }
+-keep class com.follow.clash.models.** { *; }
 
--keep class com.follow.clash.service.models.**{ *; }
+-keep class com.follow.clash.service.models.** { *; }

android/app/src/debug/AndroidManifest.xml

@@ -1,9 +1,5 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
-    <!-- The INTERNET permission is required for development. Specifically,
-         the Flutter tool needs it to communicate with the running application
-         to allow setting breakpoints, to provide hot reload, etc.
-    -->
     <application
         android:icon="@mipmap/ic_launcher"
         android:label="FlClash Debug"
@@ -11,7 +7,6 @@
         <service
             android:name=".TileService"
             android:label="FlClash Debug"
-            tools:replace="android:label"
-            tools:targetApi="24" />
+            tools:replace="android:label" />
     </application>
 </manifest>

android/app/src/main/AndroidManifest.xml

@@ -11,24 +11,30 @@
     <uses-feature
         android:name="android.software.leanback"
         android:required="false" />
+    <uses-feature
+        android:name="android.hardware.wifi"
+        android:required="false" />
 
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
-    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
     <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
     <uses-permission
         android:name="android.permission.QUERY_ALL_PACKAGES"
         tools:ignore="QueryAllPackagesPermission" />
+    <uses-permission android:name="com.android.permission.GET_INSTALLED_APPS" />
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE_SPECIAL_USE" />
     <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
+    <uses-permission android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS" />
+    <uses-permission android:name="android.permission.ACCESS_LOCAL_NETWORK" />
 
     <application
-        android:name=".Application"
+        android:name=".FlClashApplication"
         android:banner="@mipmap/ic_banner"
         android:hardwareAccelerated="true"
         android:icon="@mipmap/ic_launcher"
-        android:label="FlClash">
+        android:label="@string/app_name">
         <activity
             android:name=".MainActivity"
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
@@ -40,6 +46,10 @@
             <meta-data
                 android:name="io.flutter.embedding.android.NormalTheme"
                 android:resource="@style/NormalTheme" />
+            <!-- install-config links go through app_links; Flutter would also push them as routes. -->
+            <meta-data
+                android:name="flutter_deeplinking_enabled"
+                android:value="false" />
 
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
@@ -65,7 +75,7 @@
         </activity>
 
         <activity
-            android:name=".TempActivity"
+            android:name=".QuickActionActivity"
             android:excludeFromRecents="true"
             android:exported="true"
             android:theme="@style/TransparentTheme">
@@ -87,7 +97,7 @@
             android:name=".TileService"
             android:exported="true"
             android:icon="@drawable/ic"
-            android:label="FlClash"
+            android:label="@string/app_name"
             android:permission="android.permission.BIND_QUICK_SETTINGS_TILE">
             <intent-filter>
                 <action android:name="android.service.quicksettings.action.QS_TILE" />
@@ -98,14 +108,13 @@
         </service>
 
         <receiver
-            android:name=".BroadcastReceiver"
+            android:name=".ServiceBroadcastReceiver"
             android:enabled="true"
             android:exported="true"
             android:permission="${applicationId}.permission.RECEIVE_BROADCASTS">
             <intent-filter>
-                <action android:name="${applicationId}.intent.action.START" />
-                <action android:name="${applicationId}.intent.action.STOP" />
-                <action android:name="${applicationId}.intent.action.TOGGLE" />
+                <action android:name="${applicationId}.intent.action.VPN_START_REQUESTED" />
+                <action android:name="${applicationId}.intent.action.VPN_REVOKED" />
             </intent-filter>
         </receiver>
 
@@ -113,4 +122,4 @@
             android:name="flutterEmbedding"
             android:value="2" />
     </application>
-</manifest>
+</manifest>

android/app/src/main/kotlin/com/follow/clash/BroadcastReceiver.kt

@@ -1,34 +0,0 @@
-package com.follow.clash
-
-import android.content.BroadcastReceiver
-import android.content.Context
-import android.content.Intent
-import com.follow.clash.common.BroadcastAction
-import com.follow.clash.common.action
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.SupervisorJob
-import kotlinx.coroutines.launch
-
-class BroadcastReceiver : BroadcastReceiver(),
-    CoroutineScope by CoroutineScope(SupervisorJob() + Dispatchers.Default) {
-    override fun onReceive(context: Context?, intent: Intent?) {
-        when (intent?.action) {
-            BroadcastAction.START.action -> {
-                launch {
-                    State.handleStartServiceAction()
-                }
-            }
-
-            BroadcastAction.STOP.action -> {
-                State.handleStopServiceAction()
-            }
-
-            BroadcastAction.TOGGLE.action -> {
-                launch {
-                    State.handleToggleAction()
-                }
-            }
-        }
-    }
-}

android/app/src/main/kotlin/com/follow/clash/Ext.kt

@@ -1,40 +1,62 @@
 package com.follow.clash
 
+import android.app.Application
+import android.content.Context.MODE_PRIVATE
 import android.content.pm.PackageManager
 import android.graphics.Bitmap
 import android.graphics.drawable.Drawable
 import android.os.Build
 import android.os.Handler
 import android.os.Looper
+import android.widget.Toast
 import androidx.core.graphics.drawable.toBitmap
 import com.follow.clash.common.GlobalState
+import com.follow.clash.models.SharedState
+import com.google.gson.Gson
 import io.flutter.embedding.engine.FlutterEngine
 import io.flutter.embedding.engine.plugins.FlutterPlugin
 import io.flutter.plugin.common.MethodChannel
 import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.suspendCancellableCoroutine
 import kotlinx.coroutines.withContext
 import java.io.File
 import java.io.FileOutputStream
 import java.util.concurrent.TimeUnit
-import kotlin.coroutines.resume
 
 private const val ICON_TTL_DAYS = 1L
 
+val Application.sharedState: SharedState
+    get() = try {
+        val preferences = getSharedPreferences("FlutterSharedPreferences", MODE_PRIVATE)
+        val json = preferences.getString("flutter.sharedState", null)
+        Gson().fromJson(json, SharedState::class.java) ?: SharedState()
+    } catch (_: Exception) {
+        SharedState()
+    }
+
+private var lastToast: Toast? = null
+
+fun Application.showToast(text: String?) {
+    if (text.isNullOrEmpty()) return
+    Handler(Looper.getMainLooper()).post {
+        lastToast?.cancel()
+        lastToast = Toast.makeText(this, text, Toast.LENGTH_LONG).apply {
+            show()
+        }
+    }
+}
+
 suspend fun PackageManager.getPackageIconPath(packageName: String): String =
     withContext(Dispatchers.IO) {
         val cacheDir = GlobalState.application.cacheDir
         val iconDir = File(cacheDir, "icons").apply { mkdirs() }
         return@withContext try {
-            val pkgInfo = getPackageInfo(packageName, 0)
-            val lastUpdateTime = pkgInfo.lastUpdateTime
+            val lastUpdateTime = getPackageInfo(packageName, 0).lastUpdateTime
             val iconFile = File(iconDir, "${packageName}_${lastUpdateTime}.webp")
             if (iconFile.exists() && !isExpired(iconFile)) {
                 return@withContext iconFile.absolutePath
             }
-            iconDir.listFiles()?.forEach { file ->
-                if (file.name.startsWith(packageName + "_")) file.delete()
-            }
+            iconDir.listFiles { f -> f.name.startsWith("${packageName}_") }?.forEach(File::delete)
+
             val icon = getApplicationIcon(packageName)
             saveDrawableToFile(icon, iconFile)
             iconFile.absolutePath
@@ -47,17 +69,16 @@ suspend fun PackageManager.getPackageIconPath(packageName: String): String =
         }
     }
 
-private fun saveDrawableToFile(drawable: Drawable, file: File) {
-    val bitmap = drawable.toBitmap()
+private suspend fun saveDrawableToFile(drawable: Drawable, file: File) {
+    val bitmap = withContext(Dispatchers.Default) {
+        drawable.toBitmap(width = 128, height = 128)
+    }
     try {
-        val format = when {
-            Build.VERSION.SDK_INT >= Build.VERSION_CODES.R -> {
-                Bitmap.CompressFormat.WEBP_LOSSY
-            }
-
-            else -> {
-                Bitmap.CompressFormat.WEBP
-            }
+        @Suppress("DEPRECATION")
+        val format = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+            Bitmap.CompressFormat.WEBP_LOSSY
+        } else {
+            Bitmap.CompressFormat.WEBP
         }
         FileOutputStream(file).use { fos ->
             bitmap.compress(format, 90, fos)
@@ -73,49 +94,12 @@ private fun isExpired(file: File): Boolean {
     return age > TimeUnit.DAYS.toMillis(ICON_TTL_DAYS)
 }
 
-suspend fun <T> MethodChannel.awaitResult(
-    method: String, arguments: Any? = null
-): T? = withContext(Dispatchers.Main) {
-    suspendCancellableCoroutine { continuation ->
-        invokeMethod(method, arguments, object : MethodChannel.Result {
-            override fun success(result: Any?) {
-                @Suppress("UNCHECKED_CAST") continuation.resume(result as T?)
-            }
-
-            override fun error(code: String, message: String?, details: Any?) {
-                continuation.resume(null)
-            }
-
-            override fun notImplemented() {
-                continuation.resume(null)
-            }
-        })
-    }
-}
-
 inline fun <reified T : FlutterPlugin> FlutterEngine.plugin(): T? {
     return plugins.get(T::class.java) as T?
 }
 
-
-fun <T> MethodChannel.invokeMethodOnMainThread(
-    method: String, arguments: Any? = null, callback: ((Result<T>) -> Unit)? = null
-) {
+fun MethodChannel.invokeMethodOnMainThread(method: String, arguments: Any? = null) {
     Handler(Looper.getMainLooper()).post {
-        invokeMethod(method, arguments, object : MethodChannel.Result {
-            override fun success(result: Any?) {
-                @Suppress("UNCHECKED_CAST") callback?.invoke(Result.success(result as T))
-            }
-
-            override fun error(errorCode: String, errorMessage: String?, errorDetails: Any?) {
-                val exception = Exception("MethodChannel error: $errorCode - $errorMessage")
-                callback?.invoke(Result.failure(exception))
-            }
-
-            override fun notImplemented() {
-                val exception = NotImplementedError("Method not implemented: $method")
-                callback?.invoke(Result.failure(exception))
-            }
-        })
+        invokeMethod(method, arguments)
     }
-}
+}

android/app/src/main/kotlin/com/follow/clash/FlClashApplication.kt

@@ -4,8 +4,7 @@ import android.app.Application
 import android.content.Context
 import com.follow.clash.common.GlobalState
 
-class Application : Application() {
-
+class FlClashApplication : Application() {
     override fun attachBaseContext(base: Context?) {
         super.attachBaseContext(base)
         GlobalState.init(this)

android/app/src/main/kotlin/com/follow/clash/MainActivity.kt

@@ -1,37 +1,24 @@
 package com.follow.clash
 
-import android.os.Bundle
-import androidx.lifecycle.lifecycleScope
 import com.follow.clash.plugins.AppPlugin
+import com.follow.clash.plugins.BatteryPlugin
 import com.follow.clash.plugins.ServicePlugin
 import com.follow.clash.plugins.TilePlugin
 import io.flutter.embedding.android.FlutterActivity
 import io.flutter.embedding.engine.FlutterEngine
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.SupervisorJob
-import kotlinx.coroutines.launch
-
-class MainActivity : FlutterActivity(),
-    CoroutineScope by CoroutineScope(SupervisorJob() + Dispatchers.Default) {
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        lifecycleScope.launch {
-            State.destroyServiceEngine()
-        }
-    }
 
+class MainActivity : FlutterActivity() {
     override fun configureFlutterEngine(flutterEngine: FlutterEngine) {
         super.configureFlutterEngine(flutterEngine)
         flutterEngine.plugins.add(AppPlugin())
+        flutterEngine.plugins.add(BatteryPlugin())
         flutterEngine.plugins.add(ServicePlugin())
         flutterEngine.plugins.add(TilePlugin())
-        State.flutterEngine = flutterEngine
+        ServiceState.attachFlutterEngine(flutterEngine)
     }
 
     override fun onDestroy() {
-        State.flutterEngine = null
+        flutterEngine?.let(ServiceState::detachFlutterEngine)
         super.onDestroy()
     }
-}
+}

android/app/src/main/kotlin/com/follow/clash/QuickActionActivity.kt

@@ -0,0 +1,37 @@
+package com.follow.clash
+
+import android.app.Activity
+import android.content.Intent
+import android.os.Bundle
+import androidx.core.content.pm.ShortcutManagerCompat
+import com.follow.clash.common.GlobalState
+import com.follow.clash.common.QuickAction
+import com.follow.clash.common.action
+import com.follow.clash.common.shortcutId
+import kotlinx.coroutines.launch
+
+class QuickActionActivity : Activity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        handle(intent)
+        finish()
+    }
+
+    // A caller that repeats an action before this instance is gone reaches it here, not onCreate.
+    override fun onNewIntent(intent: Intent) {
+        super.onNewIntent(intent)
+        handle(intent)
+    }
+
+    private fun handle(intent: Intent) {
+        val action = QuickAction.entries.firstOrNull { it.action == intent.action } ?: return
+        ShortcutManagerCompat.reportShortcutUsed(this, action.shortcutId)
+        GlobalState.launch {
+            when (action) {
+                QuickAction.START -> ServiceState.handleStartAction()
+                QuickAction.STOP -> ServiceState.handleStopAction()
+                QuickAction.TOGGLE -> ServiceState.handleToggleAction()
+            }
+        }
+    }
+}

android/app/src/main/kotlin/com/follow/clash/Service.kt

@@ -1,76 +0,0 @@
-package com.follow.clash
-
-import com.follow.clash.common.ServiceDelegate
-import com.follow.clash.common.intent
-import com.follow.clash.service.ICallbackInterface
-import com.follow.clash.service.IMessageInterface
-import com.follow.clash.service.IRemoteInterface
-import com.follow.clash.service.RemoteService
-import com.follow.clash.service.models.NotificationParams
-import com.follow.clash.service.models.VpnOptions
-
-object Service {
-    private val delegate by lazy {
-        ServiceDelegate<IRemoteInterface>(
-            RemoteService::class.intent, ::handleServiceDisconnected
-        ) {
-            IRemoteInterface.Stub.asInterface(it)
-        }
-    }
-
-    var onServiceDisconnected: ((String) -> Unit)? = null
-
-    private fun handleServiceDisconnected(message: String) {
-        onServiceDisconnected?.let {
-            it(message)
-        }
-    }
-
-    fun bind() {
-        delegate.bind()
-    }
-
-    fun unbind() {
-        delegate.unbind()
-    }
-
-    suspend fun invokeAction(
-        data: String, cb: (result: ByteArray?, isSuccess: Boolean) -> Unit
-    ): Result<Unit> {
-        return delegate.useService {
-            it.invokeAction(data, object : ICallbackInterface.Stub() {
-                override fun onResult(result: ByteArray?, isSuccess: Boolean) {
-                    cb(result, isSuccess)
-                }
-            })
-        }
-    }
-
-    suspend fun updateNotificationParams(
-        params: NotificationParams
-    ): Result<Unit> {
-        return delegate.useService {
-            it.updateNotificationParams(params)
-        }
-    }
-
-    suspend fun setMessageCallback(
-        cb: (result: String?) -> Unit
-    ): Result<Unit> {
-        return delegate.useService {
-            it.setMessageCallback(object : IMessageInterface.Stub() {
-                override fun onResult(result: String?) {
-                    cb(result)
-                }
-            })
-        }
-    }
-
-    suspend fun startService(options: VpnOptions, inApp: Boolean) {
-        delegate.useService { it.startService(options, inApp) }
-    }
-
-    suspend fun stopService() {
-        delegate.useService { it.stopService() }
-    }
-}

android/app/src/main/kotlin/com/follow/clash/ServiceBroadcastReceiver.kt

@@ -0,0 +1,47 @@
+package com.follow.clash
+
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import android.os.Handler
+import android.os.Looper
+import com.follow.clash.common.BroadcastAction
+import com.follow.clash.common.BroadcastLease
+import com.follow.clash.common.GlobalState
+import com.follow.clash.common.action
+import kotlinx.coroutines.launch
+
+class ServiceBroadcastReceiver : BroadcastReceiver() {
+    override fun onReceive(context: Context?, intent: Intent?) {
+        val action = intent?.action ?: return
+        val pendingResult = goAsync()
+        val lease = BroadcastLease { pendingResult.finish() }
+        val timeout = Runnable {
+            lease.release { GlobalState.log("Broadcast handling timed out: $action") }
+        }
+        mainHandler.postDelayed(timeout, BROADCAST_TIMEOUT_MILLIS)
+        GlobalState.launch {
+            try {
+                handleAction(action)
+            } catch (error: Exception) {
+                GlobalState.log("Unable to handle service broadcast $action: $error")
+            } finally {
+                mainHandler.removeCallbacks(timeout)
+                lease.release()
+            }
+        }
+    }
+
+    private suspend fun handleAction(action: String) {
+        when (action) {
+            BroadcastAction.VPN_START_REQUESTED.action -> ServiceState.handleStartAction()
+
+            BroadcastAction.VPN_REVOKED.action -> ServiceState.handleVpnRevokeAction()
+        }
+    }
+
+    companion object {
+        private const val BROADCAST_TIMEOUT_MILLIS = 9_000L
+        private val mainHandler = Handler(Looper.getMainLooper())
+    }
+}

android/app/src/main/kotlin/com/follow/clash/ServiceController.kt

@@ -0,0 +1,249 @@
+package com.follow.clash
+
+import android.content.ComponentName
+import android.content.Context
+import android.content.Intent
+import android.content.ServiceConnection
+import android.os.Handler
+import android.os.IBinder
+import android.os.Looper
+import com.follow.clash.common.GlobalState
+import com.follow.clash.common.intent
+import com.follow.clash.core.Core
+import com.follow.clash.service.ManagedService
+import com.follow.clash.service.ProxyService
+import com.follow.clash.service.ServiceConfig
+import com.follow.clash.service.VpnService
+import com.follow.clash.service.models.VpnOptions
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.filterNotNull
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.suspendCancellableCoroutine
+import kotlinx.coroutines.sync.Mutex
+import kotlinx.coroutines.sync.withLock
+import kotlinx.coroutines.withContext
+import kotlinx.coroutines.withTimeout
+import kotlin.coroutines.resume
+
+object ServiceController {
+    private val lock = Mutex()
+    private var binding: ManagedServiceBinding? = null
+
+    @Volatile
+    internal var runtime: ServiceRuntime? = null
+        private set
+
+    private fun clearBinding() {
+        binding?.unbind()
+        binding = null
+    }
+
+    // The Core listens exactly while a run exists, so every path that ends one closes it.
+    private fun release() {
+        clearBinding()
+        runtime = null
+        Core.stopListener()
+    }
+
+    fun invokeMethod(data: String, callback: (ByteArray) -> Unit): Result<Unit> = runCatching {
+        Core.invokeMethod(data) { result ->
+            callback(result ?: ByteArray(0))
+        }
+    }
+
+    suspend fun quickSetup(
+        initParams: String,
+        setupParams: String,
+    ): Result<String> = runCatching {
+        suspendCancellableCoroutine { continuation ->
+            Core.quickSetup(initParams, setupParams) { result ->
+                continuation.resume(result.orEmpty())
+            }
+        }
+    }
+
+    fun setEventListener(callback: ((ByteArray) -> Unit)?): Result<Unit> = runCatching {
+        Core.updateEventListener(callback)
+    }
+
+    suspend fun start(options: VpnOptions): Boolean = lock.withLock {
+        ServiceConfig.updateVpnOptions(options)
+        val nextIntent = if (options.enable) {
+            VpnService::class.intent
+        } else {
+            ProxyService::class.intent
+        }
+
+        if (binding?.component != nextIntent.component) {
+            if (binding != null) {
+                tearDownServices()
+            }
+            lateinit var nextBinding: ManagedServiceBinding
+            nextBinding = ManagedServiceBinding(nextIntent) { message ->
+                handleServiceDisconnected(nextBinding, message)
+            }
+            binding = nextBinding
+            nextBinding.bind().onFailure { error ->
+                GlobalState.log("Unable to bind background service: $error")
+                release()
+                return@withLock false
+            }
+        }
+
+        val currentBinding = binding ?: return@withLock false
+        val result = currentBinding.useService { service -> service.start() }
+        if (result.isFailure) {
+            GlobalState.log("Unable to start background service: ${result.exceptionOrNull()}")
+            currentBinding.stopIfConnected()
+                .onFailure { error ->
+                    GlobalState.log("Unable to clean up failed background service start: $error")
+                }
+            release()
+            return@withLock false
+        }
+
+        Core.startListener()
+        runtime = ServiceRuntime(
+            vpn = options.enable,
+            startedAtMillis = runtime?.startedAtMillis ?: System.currentTimeMillis(),
+        )
+        true
+    }
+
+    suspend fun stop() = lock.withLock {
+        tearDownServices()
+        release()
+    }
+
+    private suspend fun tearDownServices() {
+        binding?.useService { service -> service.stop() }
+            ?.onFailure { error ->
+                GlobalState.log("Unable to stop background service: $error")
+            }
+        clearBinding()
+        stopServices()
+    }
+
+    // A service the system started itself — always-on VPN, or the sticky restart
+    // after the process was killed — outlives every binding this process holds, so
+    // unbinding alone leaves the tunnel up while the app reports it stopped.
+    private fun stopServices() {
+        listOf(VpnService::class.intent, ProxyService::class.intent).forEach { intent ->
+            runCatching { GlobalState.application.stopService(intent) }
+                .onFailure { error ->
+                    GlobalState.log("Unable to stop ${intent.component?.className}: $error")
+                }
+        }
+    }
+
+    private fun handleServiceDisconnected(
+        disconnectedBinding: ManagedServiceBinding,
+        message: String,
+    ) {
+        val token = ServiceState.captureRequestToken()
+        GlobalState.launch {
+            val wasCurrent = lock.withLock {
+                if (binding !== disconnectedBinding) {
+                    return@withLock false
+                }
+                GlobalState.log("Background service disconnected: $message")
+                release()
+                true
+            }
+            if (wasCurrent) {
+                ServiceState.handleServiceLost(token)
+            }
+        }
+    }
+}
+
+private class ManagedServiceBinding(
+    private val intent: Intent,
+    private val onDisconnected: (String) -> Unit,
+) : ServiceConnection {
+    val component: ComponentName?
+        get() = intent.component
+
+    private val serviceState = MutableStateFlow<Result<ManagedService>?>(null)
+
+    @Volatile
+    private var isBound = false
+
+    suspend fun bind(): Result<Unit> = runCatching {
+        withContext(Dispatchers.Main.immediate) {
+            serviceState.value = null
+            isBound = GlobalState.application.bindService(
+                intent,
+                this@ManagedServiceBinding,
+                Context.BIND_AUTO_CREATE,
+            )
+            check(isBound) { "bindService() failed" }
+        }
+    }
+
+    suspend fun <R> useService(
+        connectionTimeoutMillis: Long = 5_000,
+        block: suspend (ManagedService) -> R,
+    ): Result<R> = runCatching {
+        val service = withTimeout(connectionTimeoutMillis) {
+            serviceState.filterNotNull().first().getOrThrow()
+        }
+        withContext(Dispatchers.Default) {
+            block(service)
+        }
+    }
+
+    suspend fun stopIfConnected(): Result<Unit> = runCatching {
+        val service = serviceState.value?.getOrNull() ?: return@runCatching
+        withContext(Dispatchers.Default) {
+            service.stop()
+        }
+    }
+
+    fun unbind() {
+        serviceState.value = null
+        if (!isBound) return
+        isBound = false
+        Handler(Looper.getMainLooper()).post {
+            runCatching {
+                GlobalState.application.unbindService(this)
+            }.onFailure { error ->
+                GlobalState.log("Unable to unbind background service: $error")
+            }
+        }
+    }
+
+    override fun onServiceConnected(name: ComponentName?, binder: IBinder?) {
+        runCatching {
+            when (binder) {
+                is VpnService.LocalBinder -> binder.service
+                is ProxyService.LocalBinder -> binder.service
+                null -> error("Binder is empty")
+                else -> error("Unsupported service binder: ${binder.javaClass.name}")
+            }
+        }.onSuccess { service ->
+            serviceState.value = Result.success(service)
+        }.onFailure { error ->
+            disconnect(error.message.orEmpty())
+        }
+    }
+
+    override fun onServiceDisconnected(name: ComponentName?) {
+        disconnect("Service disconnected")
+    }
+
+    override fun onBindingDied(name: ComponentName?) {
+        disconnect("Service binding died")
+    }
+
+    override fun onNullBinding(name: ComponentName?) {
+        disconnect("Service returned an empty binder")
+    }
+
+    private fun disconnect(message: String) {
+        serviceState.value = Result.failure(IllegalStateException(message))
+        onDisconnected(message)
+    }
+}

android/app/src/main/kotlin/com/follow/clash/ServiceState.kt

@@ -0,0 +1,40 @@
+package com.follow.clash
+
+import com.follow.clash.models.SharedState
+import io.flutter.embedding.engine.FlutterEngine
+import kotlinx.coroutines.Deferred
+
+object ServiceState {
+    private val machine = ServiceStateMachine(AndroidServiceStateHost)
+
+    val runState = machine.runState
+
+    val isRunRequested: Boolean
+        get() = machine.isRunRequested
+
+    fun attachFlutterEngine(engine: FlutterEngine) =
+        AndroidServiceStateHost.attachFlutterEngine(engine)
+
+    fun detachFlutterEngine(engine: FlutterEngine) =
+        AndroidServiceStateHost.detachFlutterEngine(engine)
+
+    suspend fun handleToggleAction() = machine.handleToggleAction()
+
+    suspend fun handleStartAction() = machine.handleStartAction()
+
+    suspend fun handleStopAction() = machine.handleStopAction()
+
+    suspend fun handleVpnRevokeAction() = machine.handleVpnRevokeAction()
+
+    suspend fun awaitRunTime(): Long = machine.awaitRunTime()
+
+    fun requestStart(): Deferred<Boolean> = machine.requestStart()
+
+    fun requestStop(): Deferred<Boolean> = machine.requestStop()
+
+    fun syncSharedState(state: SharedState) = machine.syncSharedState(state)
+
+    internal fun captureRequestToken(): RunRequest = machine.captureRequestToken()
+
+    internal suspend fun handleServiceLost(token: RunRequest) = machine.handleServiceLost(token)
+}

android/app/src/main/kotlin/com/follow/clash/ServiceStateHost.kt

@@ -0,0 +1,149 @@
+package com.follow.clash
+
+import android.Manifest
+import android.content.pm.PackageManager
+import android.net.VpnService
+import android.os.Build
+import androidx.core.content.ContextCompat
+import com.follow.clash.common.GlobalState
+import com.follow.clash.models.SharedState
+import com.follow.clash.plugins.AppPlugin
+import com.follow.clash.plugins.ServicePlugin
+import com.follow.clash.plugins.TilePlugin
+import com.follow.clash.service.ServiceConfig
+import com.follow.clash.service.models.NotificationParams
+import com.follow.clash.service.models.VpnOptions
+import io.flutter.embedding.engine.FlutterEngine
+import kotlinx.coroutines.CoroutineScope
+
+internal data class ServiceRuntime(
+    val vpn: Boolean,
+    val startedAtMillis: Long,
+)
+
+/**
+ * The machine owns the arbitration and the transitions; this is only the part that cannot run on a
+ * plain JVM, so unit tests can drive the state machine with an in-memory implementation.
+ */
+internal interface ServiceStateHost {
+    val scope: CoroutineScope
+    val runtime: ServiceRuntime?
+    val homeDirPath: String
+    val sdkInt: Int
+
+    fun log(message: String)
+
+    fun showToast(message: String)
+
+    fun updateNotificationParams(params: NotificationParams)
+
+    fun loadSharedState(): SharedState
+
+    fun isVpnPermissionGranted(): Boolean
+
+    fun isLocalNetworkPermissionGranted(): Boolean
+
+    fun tile(): TileGateway?
+
+    fun app(): AppGateway?
+
+    fun notifyStopped()
+
+    suspend fun quickSetup(initParams: String, setupParams: String): Result<String>
+
+    suspend fun startService(options: VpnOptions): Boolean
+
+    suspend fun stopService()
+}
+
+internal fun interface TileGateway {
+    fun handleStart()
+}
+
+internal interface AppGateway {
+    fun requestNotificationPermission(callback: (Boolean) -> Unit)
+
+    fun requestLocalNetworkPermission(callback: (Boolean) -> Unit)
+
+    fun prepareVpn(enable: Boolean, callback: (Boolean) -> Unit)
+
+    fun cancelVpnPreparation(callback: (Boolean) -> Unit)
+}
+
+internal object AndroidServiceStateHost : ServiceStateHost {
+    @Volatile
+    private var flutterEngine: FlutterEngine? = null
+
+    override val scope: CoroutineScope
+        get() = GlobalState
+
+    override val runtime: ServiceRuntime?
+        get() = ServiceController.runtime
+
+    override val homeDirPath: String
+        get() = GlobalState.application.filesDir.path
+
+    override val sdkInt: Int
+        get() = android.os.Build.VERSION.SDK_INT
+
+    fun attachFlutterEngine(engine: FlutterEngine) {
+        flutterEngine = engine
+    }
+
+    fun detachFlutterEngine(engine: FlutterEngine) {
+        if (flutterEngine === engine) {
+            flutterEngine = null
+        }
+    }
+
+    override fun log(message: String) = GlobalState.log(message)
+
+    override fun showToast(message: String) = GlobalState.application.showToast(message)
+
+    override fun updateNotificationParams(params: NotificationParams) =
+        ServiceConfig.updateNotificationParams(params)
+
+    override fun loadSharedState(): SharedState = GlobalState.application.sharedState
+
+    override fun isVpnPermissionGranted(): Boolean =
+        VpnService.prepare(GlobalState.application) == null
+
+    override fun isLocalNetworkPermissionGranted(): Boolean =
+        sdkInt < Build.VERSION_CODES.CINNAMON_BUN ||
+            ContextCompat.checkSelfPermission(
+                GlobalState.application,
+                Manifest.permission.ACCESS_LOCAL_NETWORK,
+            ) == PackageManager.PERMISSION_GRANTED
+
+    override fun tile(): TileGateway? = flutterEngine?.plugin<TilePlugin>()?.let { plugin ->
+        TileGateway(plugin::handleStart)
+    }
+
+    override fun app(): AppGateway? = flutterEngine?.plugin<AppPlugin>()?.let { plugin ->
+        object : AppGateway {
+            override fun requestNotificationPermission(callback: (Boolean) -> Unit) =
+                plugin.requestNotificationPermission(callback)
+
+            override fun requestLocalNetworkPermission(callback: (Boolean) -> Unit) =
+                plugin.requestLocalNetworkPermission(callback)
+
+            override fun prepareVpn(enable: Boolean, callback: (Boolean) -> Unit) =
+                plugin.prepareVpn(enable, callback)
+
+            override fun cancelVpnPreparation(callback: (Boolean) -> Unit) =
+                plugin.cancelVpnPreparation(callback)
+        }
+    }
+
+    override fun notifyStopped() {
+        flutterEngine?.plugin<ServicePlugin>()?.notifyStopped()
+    }
+
+    override suspend fun quickSetup(initParams: String, setupParams: String): Result<String> =
+        ServiceController.quickSetup(initParams, setupParams)
+
+    override suspend fun startService(options: VpnOptions): Boolean =
+        ServiceController.start(options)
+
+    override suspend fun stopService() = ServiceController.stop()
+}

android/app/src/main/kotlin/com/follow/clash/ServiceStateMachine.kt

@@ -0,0 +1,382 @@
+package com.follow.clash
+
+import com.follow.clash.common.RunIntentArbiter
+import com.follow.clash.models.SharedState
+import com.follow.clash.service.models.NotificationParams
+import com.follow.clash.service.models.VpnOptions
+import com.google.gson.Gson
+import kotlinx.coroutines.CancellationException
+import kotlinx.coroutines.CompletableDeferred
+import kotlinx.coroutines.Deferred
+import kotlinx.coroutines.async
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.suspendCancellableCoroutine
+import kotlinx.coroutines.sync.Mutex
+import kotlinx.coroutines.sync.withLock
+import kotlin.coroutines.resume
+
+enum class RunState {
+    STARTED,
+    STARTING,
+    STOPPING,
+    STOPPED,
+}
+
+internal typealias RunRequest = RunIntentArbiter.Token
+
+internal const val MISSING_CONFIG_MESSAGE = "No configuration found."
+internal const val INVALID_CONFIG_MESSAGE = "Invalid configuration."
+internal const val VPN_PERMISSION_MESSAGE = "VPN permission required."
+internal const val START_FAILED_MESSAGE = "Failed to start service."
+
+private enum class StartOutcome {
+    STARTED,
+    FAILED,
+    SUPERSEDED,
+}
+
+/**
+ * Callers request a transition; the newest request always wins. No step assigns [runState]:
+ * [publish] derives it from the latest intent, the transition in flight and what the host really
+ * runs, so no path can leave it claiming a service that is not there.
+ */
+internal class ServiceStateMachine(private val host: ServiceStateHost) {
+    private val transitionLock = Mutex()
+    private val startPreparationLock = Mutex()
+    private val mutableRunState = MutableStateFlow(RunState.STOPPED)
+    private val arbiter = RunIntentArbiter()
+
+    @Volatile
+    private var sharedState = SharedState()
+
+    @Volatile
+    private var pendingVpnPreparation: (() -> Unit)? = null
+
+    @Volatile
+    private var transition: RunState? = null
+
+    val runState = mutableRunState.asStateFlow()
+
+    val isRunRequested: Boolean
+        get() = arbiter.isRunningRequested
+
+    suspend fun handleToggleAction() {
+        if (isRunRequested) {
+            handleStopAction()
+        } else {
+            handleStartAction()
+        }
+    }
+
+    suspend fun awaitRunTime(): Long = transitionLock.withLock {
+        host.runtime?.startedAtMillis?.takeIf { isRunRequested } ?: 0L
+    }
+
+    fun captureRequestToken(): RunRequest = arbiter.current()
+
+    /**
+     * Settles the state after the bound service was lost. [token] is the request that was current
+     * when the loss was observed, so a start that raced ahead of this callback keeps its intent.
+     */
+    suspend fun handleServiceLost(token: RunRequest) {
+        val dropped = transitionLock.withLock {
+            if (host.runtime != null) {
+                return@withLock false
+            }
+            arbiter.resetToStopped(token).also { publish() }
+        }
+        if (dropped) {
+            host.notifyStopped()
+        }
+    }
+
+    suspend fun handleStartAction() {
+        if (isRunRequested) {
+            return
+        }
+        val tile = host.tile()
+        if (tile != null) {
+            tile.handleStart()
+            return
+        }
+        startFromPreferences()
+    }
+
+    suspend fun handleStopAction() {
+        if (!isRunRequested) {
+            return
+        }
+        host.showToast(sharedState.stopTip)
+        requestStop().await()
+        host.notifyStopped()
+    }
+
+    suspend fun handleVpnRevokeAction() {
+        if (host.runtime?.vpn != true) {
+            return
+        }
+        handleStopAction()
+    }
+
+    fun requestStart(): Deferred<Boolean> {
+        if (isStartedAs(sharedState.vpnOptions)) {
+            return CompletableDeferred(true)
+        }
+        val outcome = launchStart(createRequest(running = true))
+        return host.scope.async { outcome.await() == StartOutcome.STARTED }
+    }
+
+    fun requestStop(): Deferred<Boolean> {
+        val request = createRequest(running = false)
+        return host.scope.async { stop(request) }
+    }
+
+    fun syncSharedState(state: SharedState) {
+        sharedState = state
+        applySharedState()
+    }
+
+    // No new request for a settled run: one refused at a prompt would take the service down.
+    private fun isStartedAs(options: VpnOptions?): Boolean =
+        runState.value == RunState.STARTED && host.runtime?.vpn == options?.enable
+
+    // The intent is claimed before the Core is set up, so a second action that lands meanwhile
+    // toggles this start off instead of racing a second setup against it.
+    private suspend fun startFromPreferences() {
+        val request = createRequest(running = true)
+        sharedState = host.loadSharedState()
+        if (sharedState.setupParams == null || sharedState.vpnOptions == null) {
+            host.showToast(MISSING_CONFIG_MESSAGE)
+            abandon(request)
+            return
+        }
+        if (!setupCore()) {
+            abandon(request)
+        } else if (launchStart(request).await() == StartOutcome.FAILED) {
+            host.showToast(START_FAILED_MESSAGE)
+        }
+    }
+
+    private fun launchStart(request: RunRequest): Deferred<StartOutcome> {
+        val result = CompletableDeferred<StartOutcome>()
+        val launch: (Boolean) -> Unit = { permitted ->
+            host.scope.launch {
+                result.complete(if (permitted) start(request) else abandon(request))
+            }
+        }
+        val app = host.app()
+        if (app != null) {
+            app.requestNotificationPermission { permitted ->
+                if (permitted) {
+                    app.requestLocalNetworkPermission { launch(true) }
+                } else {
+                    launch(false)
+                }
+            }
+        } else {
+            launch(true)
+        }
+        return result
+    }
+
+    private fun applySharedState() {
+        host.updateNotificationParams(notificationParams(sharedState))
+    }
+
+    private suspend fun setupCore(): Boolean {
+        applySharedState()
+        host.showToast(sharedState.startTip)
+        return host.quickSetup(
+            initParams(host.homeDirPath, host.sdkInt),
+            Gson().toJson(sharedState.setupParams),
+        ).fold(
+            onSuccess = { message ->
+                if (message.isEmpty()) {
+                    true
+                } else {
+                    host.log("Unable to set up core: $message")
+                    showConfigError(message)
+                    false
+                }
+            },
+            onFailure = { error ->
+                host.log("Unable to set up core: $error")
+                showConfigError(error.message)
+                false
+            },
+        )
+    }
+
+    private fun showConfigError(message: String?) {
+        host.showToast(message?.takeIf { it.isNotBlank() } ?: INVALID_CONFIG_MESSAGE)
+    }
+
+    private suspend fun start(request: RunRequest): StartOutcome {
+        val started = try {
+            startPreparationLock.withLock { runStart(request) }
+        } catch (error: CancellationException) {
+            throw error
+        } catch (error: Exception) {
+            host.log("Unable to process service start request: $error")
+            false
+        }
+        return if (started) StartOutcome.STARTED else abandon(request)
+    }
+
+    private suspend fun abandon(request: RunRequest): StartOutcome {
+        val dropped = arbiter.resetToStopped(request)
+        reconcileStopped()
+        if (!dropped) {
+            return StartOutcome.SUPERSEDED
+        }
+        host.notifyStopped()
+        return StartOutcome.FAILED
+    }
+
+    private suspend fun runStart(request: RunRequest): Boolean {
+        if (!isCurrent(request)) {
+            return false
+        }
+        val options = sharedState.vpnOptions ?: return false
+        if (!prepareVpn(options)) {
+            if (host.app() == null && isCurrent(request)) {
+                host.showToast(VPN_PERMISSION_MESSAGE)
+            }
+            return false
+        }
+        return transitionLock.withLock {
+            when {
+                !isCurrent(request) -> false
+                host.runtime?.vpn == options.enable -> true
+                else -> transitioning(RunState.STARTING) {
+                    host.startService(withLocalNetworkFallback(options)) && isCurrent(request)
+                }
+            }
+        }
+    }
+
+    // system/mixed hand TCP to the kernel via the tun subnet, which Android 17 gates as local network.
+    private fun withLocalNetworkFallback(options: VpnOptions): VpnOptions {
+        if (!options.enable || options.stack !in KERNEL_TCP_STACKS ||
+            host.isLocalNetworkPermissionGranted()
+        ) {
+            return options
+        }
+        host.showToast(sharedState.localNetworkTip)
+        return options.copy(stack = FALLBACK_STACK)
+    }
+
+    // Flutter's startListener and the native quickSetup both open the Core's listeners before any
+    // service exists to answer for them, and Flutter may be gone before it hears of the failure.
+    private suspend fun reconcileStopped() = transitionLock.withLock {
+        when {
+            isRunRequested -> publish()
+            host.runtime != null -> stopLocked()
+            else -> {
+                stopService()
+                publish()
+            }
+        }
+    }
+
+    private suspend fun stop(request: RunRequest): Boolean = transitionLock.withLock {
+        if (!isCurrent(request)) {
+            return@withLock false
+        }
+        abandonVpnPreparation()
+        if (host.runtime != null) {
+            stopLocked()
+        }
+        isCurrent(request)
+    }
+
+    private suspend fun stopLocked() = transitioning(RunState.STOPPING) { stopService() }
+
+    private suspend fun stopService() {
+        try {
+            host.stopService()
+        } catch (error: CancellationException) {
+            throw error
+        } catch (error: Exception) {
+            host.log("Unable to stop service: $error")
+        }
+    }
+
+    private inline fun <T> transitioning(state: RunState, block: () -> T): T {
+        transition = state
+        publish()
+        try {
+            return block()
+        } finally {
+            transition = null
+            publish()
+        }
+    }
+
+    @Synchronized
+    private fun publish() {
+        mutableRunState.value = transition ?: when {
+            host.runtime == null -> RunState.STOPPED
+            isRunRequested -> RunState.STARTED
+            else -> RunState.STOPPING
+        }
+    }
+
+    private suspend fun prepareVpn(options: VpnOptions): Boolean {
+        val app = host.app()
+            ?: return !options.enable || host.isVpnPermissionGranted()
+        return suspendCancellableCoroutine { continuation ->
+            val callback: (Boolean) -> Unit = { granted ->
+                pendingVpnPreparation = null
+                if (continuation.isActive) {
+                    continuation.resume(granted)
+                }
+            }
+            pendingVpnPreparation = {
+                app.cancelVpnPreparation(callback)
+                callback(false)
+            }
+            continuation.invokeOnCancellation {
+                pendingVpnPreparation = null
+                app.cancelVpnPreparation(callback)
+            }
+            app.prepareVpn(options.enable, callback)
+        }
+    }
+
+    private fun abandonVpnPreparation() {
+        val abandon = pendingVpnPreparation ?: return
+        pendingVpnPreparation = null
+        abandon()
+    }
+
+    private fun createRequest(running: Boolean): RunRequest =
+        arbiter.request(running).also { publish() }
+
+    private fun isCurrent(request: RunRequest): Boolean = arbiter.isCurrent(request)
+
+    internal companion object {
+        val KERNEL_TCP_STACKS = setOf("system", "mixed")
+        const val FALLBACK_STACK = "gvisor"
+
+        /**
+         * The Core init payload. The key spelling is a cross-language contract with the Go wrapper,
+         * not an implementation detail.
+         */
+        fun initParams(homeDirPath: String, sdkInt: Int): String = Gson().toJson(
+            mapOf(
+                "home-dir" to homeDirPath,
+                "version" to sdkInt,
+            ),
+        )
+
+        fun notificationParams(state: SharedState): NotificationParams = NotificationParams(
+            title = state.currentProfileName,
+            stopText = state.stopText,
+            onlyStatisticsProxy = state.onlyStatisticsProxy,
+            showStopAction = state.showStopAction,
+        )
+    }
+}

android/app/src/main/kotlin/com/follow/clash/State.kt

@@ -1,148 +0,0 @@
-package com.follow.clash
-
-import com.follow.clash.common.GlobalState
-import com.follow.clash.plugins.AppPlugin
-import com.follow.clash.plugins.ServicePlugin
-import com.follow.clash.plugins.TilePlugin
-import io.flutter.FlutterInjector
-import io.flutter.embedding.engine.FlutterEngine
-import io.flutter.embedding.engine.dart.DartExecutor
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.flow.MutableStateFlow
-import kotlinx.coroutines.launch
-import kotlinx.coroutines.sync.Mutex
-import kotlinx.coroutines.sync.withLock
-import kotlinx.coroutines.withContext
-
-enum class RunState {
-    START, PENDING, STOP
-}
-
-
-object State {
-
-    val runLock = Mutex()
-
-    var runTime: Long = 0
-
-    val runStateFlow: MutableStateFlow<RunState> = MutableStateFlow(RunState.STOP)
-    var flutterEngine: FlutterEngine? = null
-    var serviceFlutterEngine: FlutterEngine? = null
-
-    val appPlugin: AppPlugin?
-        get() = flutterEngine?.plugin<AppPlugin>() ?: serviceFlutterEngine?.plugin<AppPlugin>()
-
-    val servicePlugin: ServicePlugin?
-        get() = flutterEngine?.plugin<ServicePlugin>()
-            ?: serviceFlutterEngine?.plugin<ServicePlugin>()
-
-    val tilePlugin: TilePlugin?
-        get() = flutterEngine?.plugin<TilePlugin>() ?: serviceFlutterEngine?.plugin<TilePlugin>()
-
-    suspend fun handleToggleAction() {
-        var action: (suspend () -> Unit)?
-        runLock.withLock {
-            action = when (runStateFlow.value) {
-                RunState.PENDING -> null
-                RunState.START -> ::handleStopServiceAction
-                RunState.STOP -> ::handleStartServiceAction
-            }
-        }
-        action?.invoke()
-    }
-
-    suspend fun handleStartServiceAction() {
-        tilePlugin?.handleStart()
-        if (flutterEngine != null) {
-            return
-        }
-        startServiceWithEngine()
-    }
-
-    fun handleStopServiceAction() {
-        tilePlugin?.handleStop()
-        if (flutterEngine != null || serviceFlutterEngine != null) {
-            return
-        }
-        handleStopService()
-    }
-
-    fun handleStartService() {
-        if (appPlugin != null) {
-            appPlugin?.requestNotificationsPermission {
-                startService()
-            }
-            return
-        }
-        startService()
-    }
-
-    suspend fun destroyServiceEngine() {
-        runLock.withLock {
-            withContext(Dispatchers.Main) {
-                runCatching {
-                    serviceFlutterEngine?.destroy()
-                    serviceFlutterEngine = null
-                }
-            }
-        }
-    }
-
-    suspend fun startServiceWithEngine() {
-        runLock.withLock {
-            withContext(Dispatchers.Main) {
-                serviceFlutterEngine = FlutterEngine(GlobalState.application)
-                serviceFlutterEngine?.plugins?.add(ServicePlugin())
-                serviceFlutterEngine?.plugins?.add(AppPlugin())
-                serviceFlutterEngine?.plugins?.add(TilePlugin())
-                val dartEntrypoint = DartExecutor.DartEntrypoint(
-                    FlutterInjector.instance().flutterLoader().findAppBundlePath(), "_service"
-                )
-                serviceFlutterEngine?.dartExecutor?.executeDartEntrypoint(dartEntrypoint)
-            }
-
-        }
-    }
-
-    private fun startService() {
-        GlobalState.launch {
-            runLock.withLock {
-                if (runStateFlow.value == RunState.PENDING || runStateFlow.value == RunState.START) {
-                    return@launch
-                }
-                runStateFlow.tryEmit(RunState.PENDING)
-                if (servicePlugin == null) {
-                    return@launch
-                }
-                val options = servicePlugin?.handleGetVpnOptions()
-                if (options == null) {
-                    return@launch
-                }
-                appPlugin?.prepare(options.enable) {
-                    runTime = System.currentTimeMillis()
-                    Service.startService(options, true)
-                    runStateFlow.tryEmit(RunState.START)
-                }
-            }
-        }
-
-    }
-
-    fun handleStopService() {
-        GlobalState.launch {
-            runLock.withLock {
-                if (runStateFlow.value == RunState.PENDING || runStateFlow.value == RunState.STOP) {
-                    return@launch
-                }
-                runStateFlow.tryEmit(RunState.PENDING)
-                Service.stopService()
-                runStateFlow.tryEmit(RunState.STOP)
-                runTime = 0
-            }
-            destroyServiceEngine()
-        }
-
-    }
-}
-
-

android/app/src/main/kotlin/com/follow/clash/TempActivity.kt

@@ -1,35 +0,0 @@
-package com.follow.clash
-
-import android.app.Activity
-import android.os.Bundle
-import com.follow.clash.common.QuickAction
-import com.follow.clash.common.action
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.SupervisorJob
-import kotlinx.coroutines.launch
-
-class TempActivity : Activity(),
-    CoroutineScope by CoroutineScope(SupervisorJob() + Dispatchers.Default) {
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        when (intent.action) {
-            QuickAction.START.action -> {
-                launch {
-                    State.handleStartServiceAction()
-                }
-            }
-
-            QuickAction.STOP.action -> {
-                State.handleStopServiceAction()
-            }
-
-            QuickAction.TOGGLE.action -> {
-                launch {
-                    State.handleToggleAction()
-                }
-            }
-        }
-        finish()
-    }
-}

android/app/src/main/kotlin/com/follow/clash/TileService.kt

@@ -3,7 +3,6 @@ package com.follow.clash
 import android.annotation.SuppressLint
 import android.os.Build
 import android.service.quicksettings.Tile
-import android.service.quicksettings.TileService
 import com.follow.clash.common.QuickAction
 import com.follow.clash.common.quickIntent
 import com.follow.clash.common.toPendingIntent
@@ -13,49 +12,52 @@ import kotlinx.coroutines.SupervisorJob
 import kotlinx.coroutines.cancel
 import kotlinx.coroutines.launch
 
-class TileService : TileService() {
+class TileService : android.service.quicksettings.TileService() {
     private var scope: CoroutineScope? = null
-    private fun updateTile(runState: RunState) {
-        if (qsTile != null) {
-            qsTile.state = when (runState) {
-                RunState.START -> Tile.STATE_ACTIVE
-                RunState.PENDING -> Tile.STATE_UNAVAILABLE
-                RunState.STOP -> Tile.STATE_INACTIVE
-            }
-            qsTile.updateTile()
-        }
-    }
 
     override fun onStartListening() {
         super.onStartListening()
         scope?.cancel()
-        scope = CoroutineScope(SupervisorJob() + Dispatchers.Default)
-        scope?.launch {
-            State.runStateFlow.collect {
-                updateTile(it)
+        scope = CoroutineScope(SupervisorJob() + Dispatchers.Main.immediate).also { scope ->
+            scope.launch {
+                ServiceState.runState.collect(::updateTile)
             }
         }
     }
 
+    // Always route through QuickActionActivity: startActivityAndCollapse is
+    // what closes the shade, so toggling the service in place would leave
+    // the panel open after a tap.
+    override fun onClick() {
+        super.onClick()
+        openQuickAction()
+    }
+
+    override fun onStopListening() {
+        scope?.cancel()
+        scope = null
+        super.onStopListening()
+    }
+
+    private fun updateTile(runState: RunState) {
+        qsTile?.apply {
+            state = when (runState) {
+                RunState.STARTED -> Tile.STATE_ACTIVE
+                RunState.STARTING, RunState.STOPPING -> Tile.STATE_UNAVAILABLE
+                RunState.STOPPED -> Tile.STATE_INACTIVE
+            }
+            updateTile()
+        }
+    }
+
     @SuppressLint("StartActivityAndCollapseDeprecated")
-    private fun handleToggle() {
+    private fun openQuickAction() {
         val intent = QuickAction.TOGGLE.quickIntent
-        val pendingIntent = intent.toPendingIntent
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.UPSIDE_DOWN_CAKE) {
-            startActivityAndCollapse(pendingIntent)
+            startActivityAndCollapse(intent.toPendingIntent)
         } else {
             @Suppress("DEPRECATION")
             startActivityAndCollapse(intent)
         }
     }
-
-    override fun onClick() {
-        super.onClick()
-        handleToggle()
-    }
-
-    override fun onStopListening() {
-        scope?.cancel()
-        super.onStopListening()
-    }
-}
+}

android/app/src/main/kotlin/com/follow/clash/models/InstalledPackage.kt

@@ -1,6 +1,6 @@
 package com.follow.clash.models
 
-data class Package(
+data class InstalledPackage(
     val packageName: String,
     val label: String,
     val system: Boolean,

android/app/src/main/kotlin/com/follow/clash/models/State.kt

@@ -1,8 +1,26 @@
 package com.follow.clash.models
 
+import com.follow.clash.service.models.VpnOptions
+import com.google.gson.annotations.SerializedName
 
-data class AppState(
-    val currentProfileName: String,
-    val stopText: String,
-    val onlyStatisticsProxy: Boolean,
+data class SharedState(
+    val startTip: String = "Starting VPN...",
+    val stopTip: String = "Stopping VPN...",
+    val localNetworkTip: String =
+        "Local network permission denied: using the gvisor stack, LAN is unreachable.",
+    val currentProfileName: String = "FlClash",
+    val stopText: String = "Stop",
+    val onlyStatisticsProxy: Boolean = false,
+    val showStopAction: Boolean = true,
+    val vpnOptions: VpnOptions? = null,
+    val setupParams: SetupParams? = null,
+)
+
+data class SetupParams(
+    @SerializedName("test-url")
+    val testUrl: String,
+    @SerializedName("selected-map")
+    val selectedMap: Map<String, String>,
+    @SerializedName("skip-cert-verify")
+    val skipCertVerify: Boolean = false,
 )

android/app/src/main/kotlin/com/follow/clash/packages/ChinaPackageMatcher.kt

@@ -0,0 +1,84 @@
+package com.follow.clash.packages
+
+/**
+ * The prefixes in [CHINA_PACKAGE_REGEX] are matched *without* a trailing dot
+ * boundary, and that is deliberate: `com.qihoo` has to reach `com.qihoo360.*`
+ * and `com.ali` has to reach `com.aliyun.*` and `com.alimama.*`. Requiring a
+ * separator would turn those into misses.
+ *
+ * The price is that unrelated names starting with the same letters match too.
+ * [SKIPPED_PREFIXES] is where those come back out, and it *does* apply a dot
+ * boundary, because there the entries are whole package roots.
+ */
+internal object ChinaPackageMatcher {
+
+    fun isSkipped(packageName: String): Boolean = SKIPPED_PREFIXES.any {
+        packageName == it || packageName.startsWith("$it.")
+    }
+
+    fun matchesKnownPrefix(name: String): Boolean = name.matches(CHINA_PACKAGE_REGEX)
+
+    fun classNameOf(descriptor: String): String = descriptor
+        .removeSurrounding("L", ";")
+        .replace('/', '.')
+        .replace('$', '.')
+
+    private val SKIPPED_PREFIXES = listOf(
+        "com.google",
+        "com.android.chrome",
+        "com.android.vending",
+        "com.microsoft",
+        "com.apple",
+        "com.zhiliaoapp.musically",
+        // Caught by the loose "com.mx" prefix, which targets Maxthon's
+        // com.mx.browser. MX Player is unrelated.
+        "com.mxtech",
+        // Caught by the loose "com.stub" prefix, which targets the
+        // com.stub.StubApp packer. StubHub is unrelated.
+        "com.stubhub",
+    )
+
+    private val CHINA_PACKAGE_REGEX = listOf(
+        "com.tencent",
+        "com.alibaba",
+        "com.umeng",
+        "com.qihoo",
+        "com.ali",
+        "com.alipay",
+        "com.amap",
+        "com.sina",
+        "com.weibo",
+        "com.vivo",
+        "com.xiaomi",
+        "com.huawei",
+        "com.taobao",
+        "com.secneo",
+        "s.h.e.l.l",
+        "com.stub",
+        "com.kiwisec",
+        "com.secshell",
+        "com.wrapper",
+        "cn.securitystack",
+        "com.mogosec",
+        "com.secoen",
+        "com.netease",
+        "com.mx",
+        "com.qq.e",
+        "com.baidu",
+        "com.bytedance",
+        "com.bugly",
+        "com.miui",
+        "com.oppo",
+        "com.coloros",
+        "com.iqoo",
+        "com.meizu",
+        "com.gionee",
+        "cn.nubia",
+        "com.oplus",
+        "andes.oplus",
+        "com.unionpay",
+        "cn.wps",
+    ).joinToString("|", prefix = "(", postfix = ").*") { prefix ->
+        Regex.escape(prefix)
+    }.toRegex()
+}

android/app/src/main/kotlin/com/follow/clash/packages/PackageResolver.kt

@@ -0,0 +1,139 @@
+package com.follow.clash.packages
+
+import android.Manifest
+import android.content.pm.ApplicationInfo
+import android.content.pm.ComponentInfo
+import android.content.pm.PackageManager
+import android.os.Build
+import com.android.tools.smali.dexlib2.dexbacked.DexBackedDexFile
+import com.follow.clash.models.InstalledPackage
+import java.io.File
+import java.util.zip.ZipFile
+
+internal class PackageResolver(
+    private val packageManager: PackageManager,
+    private val appPackageName: String,
+) {
+    private val cacheLock = Any()
+
+    @Volatile
+    private var cachedPackages: List<InstalledPackage>? = null
+
+    val installedPackages: List<InstalledPackage>
+        get() = cachedPackages ?: synchronized(cacheLock) {
+            cachedPackages ?: loadPackages().also { cachedPackages = it }
+        }
+
+    val isInstalledAppsPermissionSupported: Boolean by lazy {
+        runCatching { packageManager.getPermissionInfo(GET_INSTALLED_APPS, 0) }.isSuccess
+    }
+
+    fun hasInstalledAppsPermission(): Boolean = !isInstalledAppsPermissionSupported ||
+        packageManager.checkPermission(GET_INSTALLED_APPS, appPackageName) ==
+        PackageManager.PERMISSION_GRANTED
+
+    fun invalidate() {
+        synchronized(cacheLock) { cachedPackages = null }
+    }
+
+    fun getChinaPackageNames(): List<String> = installedPackages
+        .map { it.packageName }
+        .filter(::isChinaPackage)
+
+    private fun loadPackages(): List<InstalledPackage> {
+        val flags = PackageManager.GET_PERMISSIONS
+        val packages = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+            packageManager.getInstalledPackages(
+                PackageManager.PackageInfoFlags.of(flags.toLong()),
+            )
+        } else {
+            @Suppress("DEPRECATION")
+            packageManager.getInstalledPackages(flags)
+        }
+        return packages.asSequence()
+            .filter { info ->
+                info.packageName != appPackageName && info.packageName != ANDROID_PACKAGE_NAME
+            }
+            .map { info ->
+                InstalledPackage(
+                    packageName = info.packageName,
+                    label = info.applicationInfo?.loadLabel(packageManager)?.toString()
+                        ?: info.packageName,
+                    system = info.applicationInfo?.let { applicationInfo ->
+                        applicationInfo.flags and ApplicationInfo.FLAG_SYSTEM != 0
+                    } == true,
+                    internet = info.requestedPermissions
+                        ?.contains(Manifest.permission.INTERNET) == true,
+                    lastUpdateTime = info.lastUpdateTime,
+                )
+            }.toList()
+    }
+
+    private fun isChinaPackage(packageName: String): Boolean {
+        if (ChinaPackageMatcher.isSkipped(packageName)) {
+            return false
+        }
+        if (ChinaPackageMatcher.matchesKnownPrefix(packageName)) {
+            return true
+        }
+
+        return runCatching {
+            val packageInfo = getPackageInfo(packageName)
+            packageInfo.componentNames().any(ChinaPackageMatcher::matchesKnownPrefix) ||
+                packageInfo.applicationInfo?.publicSourceDir?.let(::scanArchive) == true
+        }.getOrDefault(false)
+    }
+
+    private fun getPackageInfo(packageName: String) = if (
+        Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU
+    ) {
+        packageManager.getPackageInfo(
+            packageName,
+            PackageManager.PackageInfoFlags.of(PACKAGE_INFO_FLAGS.toLong()),
+        )
+    } else {
+        @Suppress("DEPRECATION")
+        packageManager.getPackageInfo(packageName, PACKAGE_INFO_FLAGS)
+    }
+
+    private fun android.content.pm.PackageInfo.componentNames(): Sequence<String> = sequence {
+        yieldAll(services.orEmpty().asSequence().map(ComponentInfo::name))
+        yieldAll(activities.orEmpty().asSequence().map(ComponentInfo::name))
+        yieldAll(receivers.orEmpty().asSequence().map(ComponentInfo::name))
+        yieldAll(providers.orEmpty().asSequence().map(ComponentInfo::name))
+    }
+
+    private fun scanArchive(sourcePath: String): Boolean = ZipFile(File(sourcePath)).use { archive ->
+        if (archive.entries().asSequence().any { it.name.startsWith("firebase-") }) {
+            return false
+        }
+        archive.entries().asSequence()
+            .filter { entry ->
+                entry.name.startsWith("classes") && entry.name.endsWith(".dex")
+            }.any { entry ->
+                if (entry.size > MAX_DEX_SIZE_BYTES) {
+                    return@any true
+                }
+                val dexFile = archive.getInputStream(entry).buffered().use { input ->
+                    DexBackedDexFile.fromInputStream(null, input)
+                }
+                dexFile.classes.any { clazz ->
+                    ChinaPackageMatcher.matchesKnownPrefix(
+                        ChinaPackageMatcher.classNameOf(clazz.type),
+                    )
+                }
+            }
+    }
+
+    companion object {
+        const val GET_INSTALLED_APPS = "com.android.permission.GET_INSTALLED_APPS"
+
+        private const val ANDROID_PACKAGE_NAME = "android"
+        private const val MAX_DEX_SIZE_BYTES = 15_000_000L
+
+        private val PACKAGE_INFO_FLAGS = PackageManager.GET_ACTIVITIES or
+            PackageManager.GET_SERVICES or
+            PackageManager.GET_RECEIVERS or
+            PackageManager.GET_PROVIDERS
+    }
+}

android/app/src/main/kotlin/com/follow/clash/plugins/AppPlugin.kt

@@ -3,124 +3,149 @@ package com.follow.clash.plugins
 import android.Manifest
 import android.app.Activity
 import android.app.ActivityManager
+import android.content.BroadcastReceiver
+import android.content.Context
 import android.content.Intent
-import android.content.pm.ApplicationInfo
-import android.content.pm.ComponentInfo
+import android.content.IntentFilter
 import android.content.pm.PackageManager
 import android.net.VpnService
 import android.os.Build
-import android.widget.Toast
+import android.os.Handler
+import android.os.Looper
+import android.provider.Settings
 import androidx.core.app.ActivityCompat
 import androidx.core.content.ContextCompat
 import androidx.core.content.ContextCompat.getSystemService
 import androidx.core.content.pm.ShortcutInfoCompat
 import androidx.core.content.pm.ShortcutManagerCompat
 import androidx.core.graphics.drawable.IconCompat
-import com.android.tools.smali.dexlib2.dexbacked.DexBackedDexFile
+import androidx.core.net.toUri
+import androidx.core.view.OnApplyWindowInsetsListener
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
 import com.follow.clash.R
 import com.follow.clash.common.Components
 import com.follow.clash.common.GlobalState
+import com.follow.clash.common.PendingCallback
 import com.follow.clash.common.QuickAction
 import com.follow.clash.common.quickIntent
+import com.follow.clash.common.registerReceiverCompat
+import com.follow.clash.common.shortcutId
 import com.follow.clash.getPackageIconPath
-import com.follow.clash.models.Package
+import com.follow.clash.packages.PackageResolver
+import com.follow.clash.showToast
 import com.google.gson.Gson
-import io.flutter.embedding.android.FlutterActivity
 import io.flutter.embedding.engine.plugins.FlutterPlugin
 import io.flutter.embedding.engine.plugins.activity.ActivityAware
 import io.flutter.embedding.engine.plugins.activity.ActivityPluginBinding
 import io.flutter.plugin.common.MethodCall
 import io.flutter.plugin.common.MethodChannel
 import io.flutter.plugin.common.MethodChannel.Result
+import io.flutter.plugin.common.PluginRegistry
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.SupervisorJob
 import kotlinx.coroutines.cancel
 import kotlinx.coroutines.launch
-import kotlinx.coroutines.withContext
-import java.io.File
-import java.lang.ref.WeakReference
-import java.util.zip.ZipFile
 
 class AppPlugin : FlutterPlugin, MethodChannel.MethodCallHandler, ActivityAware {
 
-    companion object {
-        const val VPN_PERMISSION_REQUEST_CODE = 1001
-        const val NOTIFICATION_PERMISSION_REQUEST_CODE = 1002
-    }
+    private var activity: Activity? = null
 
-    private var activityRef: WeakReference<Activity>? = null
+    private var activityBinding: ActivityPluginBinding? = null
+
+    private val activityResultListener =
+        PluginRegistry.ActivityResultListener(::onActivityResult)
+
+    private val permissionsResultListener =
+        PluginRegistry.RequestPermissionsResultListener(::onRequestPermissionsResultListener)
 
     private lateinit var channel: MethodChannel
 
     private lateinit var scope: CoroutineScope
 
-    private var vpnPrepareCallback: (suspend () -> Unit)? = null
+    private val vpnPrepareCallback = PendingCallback<Boolean>()
 
-    private var requestNotificationCallback: (() -> Unit)? = null
-    
-    private val packages = mutableListOf<Package>()
+    private val requestNotificationCallback = PendingCallback<Boolean>()
 
-    private val skipPrefixList = listOf(
-        "com.google",
-        "com.android.chrome",
-        "com.android.vending",
-        "com.microsoft",
-        "com.apple",
-        "com.zhiliaoapp.musically", // Banned by China
-    )
+    private val requestInstalledAppsCallback = PendingCallback<Boolean>()
 
-    private val chinaAppPrefixList = listOf(
-        "com.tencent",
-        "com.alibaba",
-        "com.umeng",
-        "com.qihoo",
-        "com.ali",
-        "com.alipay",
-        "com.amap",
-        "com.sina",
-        "com.weibo",
-        "com.vivo",
-        "com.xiaomi",
-        "com.huawei",
-        "com.taobao",
-        "com.secneo",
-        "s.h.e.l.l",
-        "com.stub",
-        "com.kiwisec",
-        "com.secshell",
-        "com.wrapper",
-        "cn.securitystack",
-        "com.mogosec",
-        "com.secoen",
-        "com.netease",
-        "com.mx",
-        "com.qq.e",
-        "com.baidu",
-        "com.bytedance",
-        "com.bugly",
-        "com.miui",
-        "com.oppo",
-        "com.coloros",
-        "com.iqoo",
-        "com.meizu",
-        "com.gionee",
-        "cn.nubia",
-        "com.oplus",
-        "andes.oplus",
-        "com.unionpay",
-        "cn.wps"
-    )
+    private val requestLocalNetworkCallback = PendingCallback<Boolean>()
 
-    private val chinaAppRegex by lazy {
-        ("(" + chinaAppPrefixList.joinToString("|").replace(".", "\\.") + ").*").toRegex()
+    private var isRequestingNotificationPermission = false
+
+    private var isRequestingLocalNetworkPermission = false
+
+    private var skipLocalNetworkPermissionRequest = false
+
+    private val gson = Gson()
+
+    private val packageResolver by lazy {
+        PackageResolver(
+            GlobalState.application.packageManager,
+            GlobalState.application.packageName,
+        )
     }
 
-    private var isBlockNotification: Boolean = false
+    private var packageChangeContext: Context? = null
+
+    private val packageChangeReceiver = object : BroadcastReceiver() {
+        override fun onReceive(context: Context?, intent: Intent?) {
+            if (intent == null || intent.data?.schemeSpecificPart == GlobalState.application.packageName) {
+                return
+            }
+            val addedByUpdate = intent.action == Intent.ACTION_PACKAGE_ADDED &&
+                intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)
+            if (addedByUpdate) {
+                return
+            }
+            packageResolver.invalidate()
+            channel.invokeMethod("packagesChanged", null)
+        }
+    }
+
+    private var skipNotificationPermissionRequest = false
+
+    @Suppress("DEPRECATION")
+    private val isTelevision by lazy {
+        val packageManager = GlobalState.application.packageManager
+        packageManager.hasSystemFeature(PackageManager.FEATURE_TELEVISION) ||
+            packageManager.hasSystemFeature(PackageManager.FEATURE_LEANBACK)
+    }
+
+    private var floatingIme = false
+
+    // A TV keyboard floats over the app and reports a zero-height IME inset.
+    private val imeInsetsListener = OnApplyWindowInsetsListener { view, insets ->
+        val ime = WindowInsetsCompat.Type.ime()
+        reportFloatingIme(insets.isVisible(ime) && insets.getInsets(ime).bottom == 0)
+        ViewCompat.onApplyWindowInsets(view, insets)
+    }
+
+    private val mainHandler = Handler(Looper.getMainLooper())
+
+    /**
+     * The permission and consent hops below touch the Activity — starting an
+     * activity for result, raising a permission prompt — and read the state that
+     * tracks whether one is already up. Their callers are coroutines on
+     * [Dispatchers.Default], while the answers come back on the main thread
+     * through the ActivityAware listeners, so main is the one thread both ends
+     * can agree on. A plain main-looper post rather than the plugin scope: the
+     * scope is cancelled when the engine detaches, and a request dropped there
+     * would leave its caller waiting for a callback that can no longer run.
+     */
+    private fun onMainThread(block: () -> Unit) {
+        if (Looper.myLooper() == Looper.getMainLooper()) {
+            block()
+        } else {
+            mainHandler.post(block)
+        }
+    }
 
     override fun onMethodCall(call: MethodCall, result: Result) {
         when (call.method) {
             "moveTaskToBack" -> {
-                activityRef?.get()?.moveTaskToBack(true)
+                activity?.moveTaskToBack(true)
                 result.success(true)
             }
 
@@ -131,20 +156,33 @@ class AppPlugin : FlutterPlugin, MethodChannel.MethodCallHandler, ActivityAware
             }
 
             "initShortcuts" -> {
-                initShortcuts(call.arguments as String)
-                result.success(true)
-            }
-
-            "getPackages" -> {
-                scope.launch {
-                    result.success(getPackagesToJson())
+                val labels = shortcutLabels(call.arguments)
+                if (labels == null) {
+                    result.error(
+                        "INVALID_ARGUMENT",
+                        "Shortcut labels must map every quick action to a string",
+                        null,
+                    )
+                } else {
+                    initShortcuts(labels)
+                    result.success(true)
                 }
             }
 
-            "getChinaPackageNames" -> {
-                scope.launch {
-                    result.success(getChinaPackageNames())
-                }
+            "getPackages" -> reply(result) {
+                gson.toJson(packageResolver.installedPackages)
+            }
+
+            "getChinaPackageNames" -> reply(result) {
+                gson.toJson(packageResolver.getChinaPackageNames())
+            }
+
+            "isInstalledAppsPermissionGranted" -> reply(result) {
+                packageResolver.hasInstalledAppsPermission()
+            }
+
+            "requestInstalledAppsPermission" -> {
+                requestInstalledAppsPermission { granted -> result.success(granted) }
             }
 
             "getPackageIcon" -> {
@@ -153,266 +191,352 @@ class AppPlugin : FlutterPlugin, MethodChannel.MethodCallHandler, ActivityAware
 
             "tip" -> {
                 val message = call.argument<String>("message")
-                tip(message)
+                GlobalState.application.showToast(message)
                 result.success(true)
             }
 
+            "openAppSettings" -> {
+                result.success(openAppSettings())
+            }
+
+            "getLastExitInfo" -> reply(result) {
+                GlobalState.lastExitInfo()
+            }
+
             else -> {
                 result.notImplemented()
             }
         }
     }
 
-    private fun handleGetPackageIcon(call: MethodCall, result: Result) {
-        scope.launch {
-            val packageName = call.argument<String>("packageName")
-            if (packageName == null) {
-                result.success("")
-                return@launch
+    private fun handleGetPackageIcon(call: MethodCall, result: Result) = reply(result) {
+        val packageName = call.argument<String>("packageName") ?: ""
+        GlobalState.application.packageManager.getPackageIconPath(packageName)
+    }
+
+    // A throw inside the plugin scope has no handler and ends the process;
+    // the Dart caller gets a PlatformException to handle instead.
+    private fun reply(result: Result, block: suspend () -> Any?) {
+        scope.launch(Dispatchers.IO) {
+            try {
+                result.success(block())
+            } catch (error: Exception) {
+                GlobalState.log("Platform call failed: $error")
+                result.error("PLATFORM_ERROR", error.toString(), null)
             }
-            val path = GlobalState.application.packageManager.getPackageIconPath(packageName)
-            result.success(path)
         }
     }
 
-    private fun initShortcuts(label: String) {
-        val shortcut = with(ShortcutInfoCompat.Builder(GlobalState.application, "toggle")) {
-            setShortLabel(label)
-            setIcon(
-                IconCompat.createWithResource(
-                    GlobalState.application,
-                    R.mipmap.ic_launcher_round,
-                )
-            )
-            setIntent(QuickAction.TOGGLE.quickIntent)
-            build()
+    private fun shortcutLabels(arguments: Any?): Map<QuickAction, String>? {
+        val map = arguments as? Map<*, *> ?: return null
+        return QuickAction.entries.associateWith { action ->
+            map[action.shortcutId] as? String ?: return null
         }
-        ShortcutManagerCompat.setDynamicShortcuts(
-            GlobalState.application, listOf(shortcut)
-        )
     }
 
-    private fun tip(message: String?) {
-        Toast.makeText(GlobalState.application, message, Toast.LENGTH_LONG).show()
+    private fun initShortcuts(labels: Map<QuickAction, String>) {
+        val shortcuts = SHORTCUT_ORDER.mapIndexed { rank, action ->
+            with(ShortcutInfoCompat.Builder(GlobalState.application, action.shortcutId)) {
+                setShortLabel(labels.getValue(action))
+                setIcon(IconCompat.createWithResource(GlobalState.application, action.shortcutIcon))
+                setIntent(action.quickIntent)
+                setRank(rank)
+                build()
+            }
+        }
+        ShortcutManagerCompat.setDynamicShortcuts(GlobalState.application, shortcuts)
+    }
+
+    // Plain circles, not adaptive icons: an adaptive shortcut icon takes the
+    // launcher's own mask, which is a square on many devices.
+    private val QuickAction.shortcutIcon: Int
+        get() = when (this) {
+            QuickAction.START -> R.drawable.ic_shortcut_start
+            QuickAction.STOP -> R.drawable.ic_shortcut_stop
+            QuickAction.TOGGLE -> R.drawable.ic_shortcut_toggle
+        }
+
+    private fun openAppSettings(): Boolean {
+        val activity = activity ?: return false
+        return try {
+            val intent = Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS).apply {
+                data = "package:${GlobalState.application.packageName}".toUri()
+            }
+            activity.startActivity(intent)
+            true
+        } catch (_: Exception) {
+            false
+        }
     }
 
     @Suppress("DEPRECATION")
     private fun updateExcludeFromRecents(value: Boolean?) {
+        val taskId = activity?.taskId ?: return
         val am = getSystemService(GlobalState.application, ActivityManager::class.java)
         val task = am?.appTasks?.firstOrNull {
             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
-                it.taskInfo.taskId == activityRef?.get()?.taskId
+                it.taskInfo?.taskId == taskId
             } else {
-                it.taskInfo.id == activityRef?.get()?.taskId
+                it.taskInfo?.id == taskId
             }
         }
-
-        when (value) {
-            true -> task?.setExcludeFromRecents(value)
-            false -> task?.setExcludeFromRecents(value)
-            null -> task?.setExcludeFromRecents(false)
-        }
+        task?.setExcludeFromRecents(value ?: false)
     }
 
-
-    private fun getPackages(): List<Package> {
-        val packageManager = GlobalState.application.packageManager
-        if (packages.isNotEmpty()) return packages
-        packageManager?.getInstalledPackages(PackageManager.GET_META_DATA or PackageManager.GET_PERMISSIONS)
-            ?.filter {
-                it.packageName != GlobalState.application.packageName && it.packageName != "android"
-            }?.map {
-                Package(
-                    packageName = it.packageName,
-                    label = it.applicationInfo?.loadLabel(packageManager).toString(),
-                    system = (it.applicationInfo?.flags?.and(ApplicationInfo.FLAG_SYSTEM)) != 0,
-                    lastUpdateTime = it.lastUpdateTime,
-                    internet = it.requestedPermissions?.contains(Manifest.permission.INTERNET) == true
-                )
-            }?.let { packages.addAll(it) }
-        return packages
-    }
-
-    private suspend fun getPackagesToJson(): String {
-        return withContext(Dispatchers.Default) {
-            Gson().toJson(getPackages())
-        }
-    }
-
-    private suspend fun getChinaPackageNames(): String {
-        return withContext(Dispatchers.Default) {
-            val packages: List<String> =
-                getPackages().map { it.packageName }.filter { isChinaPackage(it) }
-            Gson().toJson(packages)
-        }
-    }
-
-    fun requestNotificationsPermission(callBack: () -> Unit) {
-        requestNotificationCallback = callBack
+    fun requestNotificationPermission(callback: (Boolean) -> Unit) = onMainThread {
+        requestNotificationCallback.replace(callback, supersededValue = false)
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
             val permission = ContextCompat.checkSelfPermission(
-                GlobalState.application, Manifest.permission.POST_NOTIFICATIONS
+                GlobalState.application,
+                Manifest.permission.POST_NOTIFICATIONS,
             )
-            if (permission == PackageManager.PERMISSION_GRANTED || isBlockNotification) {
-                invokeRequestNotificationCallback()
-                return
+            if (permission == PackageManager.PERMISSION_GRANTED || skipNotificationPermissionRequest) {
+                invokeRequestNotificationCallback(true)
+                return@onMainThread
             }
-            activityRef?.get()?.let {
+            if (isRequestingNotificationPermission) {
+                return@onMainThread
+            }
+            isRequestingNotificationPermission = true
+            activity?.let {
                 ActivityCompat.requestPermissions(
                     it,
                     arrayOf(Manifest.permission.POST_NOTIFICATIONS),
-                    NOTIFICATION_PERMISSION_REQUEST_CODE
+                    NOTIFICATION_PERMISSION_REQUEST_CODE,
                 )
-            }
-            return
-        } else {
-            invokeRequestNotificationCallback()
+            } ?: invokeRequestNotificationCallback(true)
+            return@onMainThread
         }
-
+        invokeRequestNotificationCallback(true)
     }
 
-    fun invokeRequestNotificationCallback() {
-        requestNotificationCallback?.invoke()
-        requestNotificationCallback = null
+    private fun invokeRequestNotificationCallback(shouldStart: Boolean) {
+        isRequestingNotificationPermission = false
+        requestNotificationCallback.resolve(shouldStart)
     }
 
-    fun prepare(needPrepare: Boolean, callBack: (suspend () -> Unit)) {
-        vpnPrepareCallback = callBack
+    fun requestLocalNetworkPermission(callback: (Boolean) -> Unit) = onMainThread {
+        requestLocalNetworkCallback.replace(callback, supersededValue = false)
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.CINNAMON_BUN || hasLocalNetworkPermission()) {
+            invokeRequestLocalNetworkCallback(true)
+            return@onMainThread
+        }
+        if (skipLocalNetworkPermissionRequest) {
+            invokeRequestLocalNetworkCallback(false)
+            return@onMainThread
+        }
+        if (isRequestingLocalNetworkPermission) {
+            return@onMainThread
+        }
+        val activity = activity
+        if (activity == null) {
+            invokeRequestLocalNetworkCallback(false)
+            return@onMainThread
+        }
+        isRequestingLocalNetworkPermission = true
+        ActivityCompat.requestPermissions(
+            activity,
+            arrayOf(Manifest.permission.ACCESS_LOCAL_NETWORK),
+            LOCAL_NETWORK_PERMISSION_REQUEST_CODE,
+        )
+    }
+
+    private fun hasLocalNetworkPermission(): Boolean = ContextCompat.checkSelfPermission(
+        GlobalState.application,
+        Manifest.permission.ACCESS_LOCAL_NETWORK,
+    ) == PackageManager.PERMISSION_GRANTED
+
+    private fun invokeRequestLocalNetworkCallback(granted: Boolean) {
+        isRequestingLocalNetworkPermission = false
+        requestLocalNetworkCallback.resolve(granted)
+    }
+
+    private fun requestInstalledAppsPermission(callback: (Boolean) -> Unit) = onMainThread {
+        requestInstalledAppsCallback.replace(callback, supersededValue = false)
+        val activity = activity
+        if (packageResolver.hasInstalledAppsPermission()) {
+            invokeRequestInstalledAppsCallback(true)
+            return@onMainThread
+        }
+        if (activity == null) {
+            invokeRequestInstalledAppsCallback(false)
+            return@onMainThread
+        }
+        ActivityCompat.requestPermissions(
+            activity,
+            arrayOf(PackageResolver.GET_INSTALLED_APPS),
+            INSTALLED_APPS_PERMISSION_REQUEST_CODE,
+        )
+    }
+
+    private fun invokeRequestInstalledAppsCallback(granted: Boolean) {
+        if (granted) {
+            packageResolver.invalidate()
+        }
+        requestInstalledAppsCallback.resolve(granted)
+    }
+
+    fun prepareVpn(needPrepare: Boolean, callback: (Boolean) -> Unit) = onMainThread {
+        vpnPrepareCallback.replace(callback, supersededValue = false)
         if (!needPrepare) {
-            invokeVpnPrepareCallback()
-            return
+            invokeVpnPrepareCallback(true)
+            return@onMainThread
         }
         val intent = VpnService.prepare(GlobalState.application)
         if (intent != null) {
-            activityRef?.get()?.startActivityForResult(intent, VPN_PERMISSION_REQUEST_CODE)
-            return
-        }
-        invokeVpnPrepareCallback()
-    }
-
-    fun invokeVpnPrepareCallback() {
-        GlobalState.launch {
-            vpnPrepareCallback?.invoke()
-            vpnPrepareCallback = null
-        }
-    }
-
-
-    @Suppress("DEPRECATION")
-    private fun isChinaPackage(packageName: String): Boolean {
-        val packageManager = GlobalState.application.packageManager ?: return false
-        skipPrefixList.forEach {
-            if (packageName == it || packageName.startsWith("$it.")) return false
-        }
-        val packageManagerFlags = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
-            PackageManager.MATCH_UNINSTALLED_PACKAGES or PackageManager.GET_ACTIVITIES or PackageManager.GET_SERVICES or PackageManager.GET_RECEIVERS or PackageManager.GET_PROVIDERS
-        } else {
-            PackageManager.GET_UNINSTALLED_PACKAGES or PackageManager.GET_ACTIVITIES or PackageManager.GET_SERVICES or PackageManager.GET_RECEIVERS or PackageManager.GET_PROVIDERS
-        }
-        if (packageName.matches(chinaAppRegex)) {
-            return true
-        }
-        try {
-            val packageInfo = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
-                packageManager.getPackageInfo(
-                    packageName, PackageManager.PackageInfoFlags.of(packageManagerFlags.toLong())
-                )
+            val activity = activity
+            if (activity == null) {
+                invokeVpnPrepareCallback(false)
             } else {
-                packageManager.getPackageInfo(
-                    packageName, packageManagerFlags
-                )
+                @Suppress("DEPRECATION")
+                activity.startActivityForResult(intent, VPN_PERMISSION_REQUEST_CODE)
             }
-            mutableListOf<ComponentInfo>().apply {
-                packageInfo.services?.let { addAll(it) }
-                packageInfo.activities?.let { addAll(it) }
-                packageInfo.receivers?.let { addAll(it) }
-                packageInfo.providers?.let { addAll(it) }
-            }.forEach {
-                if (it.name.matches(chinaAppRegex)) return true
-            }
-            packageInfo.applicationInfo?.publicSourceDir?.let {
-                ZipFile(File(it)).use {
-                    for (packageEntry in it.entries()) {
-                        if (packageEntry.name.startsWith("firebase-")) return false
-                    }
-                    for (packageEntry in it.entries()) {
-                        if (!(packageEntry.name.startsWith("classes") && packageEntry.name.endsWith(
-                                ".dex"
-                            ))
-                        ) {
-                            continue
-                        }
-                        if (packageEntry.size > 15000000) {
-                            return true
-                        }
-                        val input = it.getInputStream(packageEntry).buffered()
-                        val dexFile = try {
-                            DexBackedDexFile.fromInputStream(null, input)
-                        } catch (e: Exception) {
-                            return false
-                        }
-                        for (clazz in dexFile.classes) {
-                            val clazzName =
-                                clazz.type.substring(1, clazz.type.length - 1).replace("/", ".")
-                                    .replace("$", ".")
-                            if (clazzName.matches(chinaAppRegex)) return true
-                        }
-                    }
-                }
-            }
-        } catch (_: Exception) {
-            return false
+            return@onMainThread
         }
-        return false
+        invokeVpnPrepareCallback(true)
+    }
+
+    // Posted rather than run where the cancellation lands, so it stays ordered
+    // behind the prepareVpn that installed the callback it is cancelling.
+    fun cancelVpnPreparation(callback: (Boolean) -> Unit) = onMainThread {
+        vpnPrepareCallback.cancel(callback)
+    }
+
+    private fun invokeVpnPrepareCallback(granted: Boolean) {
+        vpnPrepareCallback.resolve(granted)
     }
 
     override fun onAttachedToEngine(flutterPluginBinding: FlutterPlugin.FlutterPluginBinding) {
-        scope = CoroutineScope(Dispatchers.Default)
+        scope = CoroutineScope(SupervisorJob() + Dispatchers.Default)
         channel =
             MethodChannel(flutterPluginBinding.binaryMessenger, "${Components.PACKAGE_NAME}/app")
         channel.setMethodCallHandler(this)
+        watchPackageChanges(flutterPluginBinding.applicationContext)
+    }
+
+    private fun watchPackageChanges(context: Context) {
+        val filter = IntentFilter().apply {
+            addAction(Intent.ACTION_PACKAGE_ADDED)
+            addAction(Intent.ACTION_PACKAGE_REPLACED)
+            addAction(Intent.ACTION_PACKAGE_FULLY_REMOVED)
+            addDataScheme("package")
+        }
+        context.registerReceiverCompat(packageChangeReceiver, filter)
+        packageChangeContext = context
     }
 
     override fun onDetachedFromEngine(binding: FlutterPlugin.FlutterPluginBinding) {
+        packageChangeContext?.unregisterReceiver(packageChangeReceiver)
+        packageChangeContext = null
         channel.setMethodCallHandler(null)
         scope.cancel()
+        invokeVpnPrepareCallback(false)
+        invokeRequestNotificationCallback(false)
+        invokeRequestLocalNetworkCallback(false)
+        invokeRequestInstalledAppsCallback(false)
     }
 
     override fun onAttachedToActivity(binding: ActivityPluginBinding) {
-        activityRef = WeakReference(binding.activity)
-        binding.addActivityResultListener(::onActivityResult)
-        binding.addRequestPermissionsResultListener(::onRequestPermissionsResultListener)
+        attachToActivity(binding)
+    }
+
+    private fun attachToActivity(binding: ActivityPluginBinding) {
+        detachFromActivity()
+        activityBinding = binding
+        activity = binding.activity
+        binding.addActivityResultListener(activityResultListener)
+        binding.addRequestPermissionsResultListener(permissionsResultListener)
+        if (isTelevision) {
+            ViewCompat.setOnApplyWindowInsetsListener(
+                binding.activity.window.decorView,
+                imeInsetsListener,
+            )
+        }
+    }
+
+    private fun detachFromActivity() {
+        if (isTelevision) {
+            activity?.window?.decorView?.let {
+                ViewCompat.setOnApplyWindowInsetsListener(it, null)
+            }
+            reportFloatingIme(false)
+        }
+        activity = null
+        val binding = activityBinding ?: return
+        activityBinding = null
+        binding.removeActivityResultListener(activityResultListener)
+        binding.removeRequestPermissionsResultListener(permissionsResultListener)
+    }
+
+    private fun reportFloatingIme(floating: Boolean) {
+        if (floating == floatingIme) {
+            return
+        }
+        floatingIme = floating
+        channel.invokeMethod("floatingImeChanged", floating)
     }
 
     override fun onDetachedFromActivityForConfigChanges() {
-        activityRef = null
+        detachFromActivity()
     }
 
     override fun onReattachedToActivityForConfigChanges(binding: ActivityPluginBinding) {
-        activityRef = WeakReference(binding.activity)
+        attachToActivity(binding)
     }
 
     override fun onDetachedFromActivity() {
         channel.invokeMethod("exit", null)
-        activityRef = null
+        detachFromActivity()
+        invokeVpnPrepareCallback(false)
+        invokeRequestNotificationCallback(false)
+        invokeRequestLocalNetworkCallback(false)
+        invokeRequestInstalledAppsCallback(false)
     }
 
     private fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?): Boolean {
-        if (requestCode == VPN_PERMISSION_REQUEST_CODE) {
-            if (resultCode == FlutterActivity.RESULT_OK) {
-                invokeVpnPrepareCallback()
-            }
+        if (requestCode != VPN_PERMISSION_REQUEST_CODE) {
+            return false
         }
+        invokeVpnPrepareCallback(resultCode == Activity.RESULT_OK)
         return true
     }
 
     private fun onRequestPermissionsResultListener(
-        requestCode: Int, permissions: Array<String>, grantResults: IntArray
-    ): Boolean {
-        if (requestCode == NOTIFICATION_PERMISSION_REQUEST_CODE) {
-            isBlockNotification = true
+        requestCode: Int,
+        permissions: Array<String>,
+        grantResults: IntArray,
+    ): Boolean = when (requestCode) {
+        NOTIFICATION_PERMISSION_REQUEST_CODE -> {
+            skipNotificationPermissionRequest = true
+            invokeRequestNotificationCallback(true)
+            true
         }
-        invokeRequestNotificationCallback()
-        return true
+
+        INSTALLED_APPS_PERMISSION_REQUEST_CODE -> {
+            invokeRequestInstalledAppsCallback(
+                grantResults.isNotEmpty() &&
+                    grantResults[0] == PackageManager.PERMISSION_GRANTED,
+            )
+            true
+        }
+
+        LOCAL_NETWORK_PERMISSION_REQUEST_CODE -> {
+            skipLocalNetworkPermissionRequest = true
+            invokeRequestLocalNetworkCallback(
+                grantResults.isNotEmpty() &&
+                    grantResults[0] == PackageManager.PERMISSION_GRANTED,
+            )
+            true
+        }
+
+        else -> false
+    }
+
+    private companion object {
+        val SHORTCUT_ORDER = listOf(QuickAction.START, QuickAction.STOP, QuickAction.TOGGLE)
+        const val VPN_PERMISSION_REQUEST_CODE = 1001
+        const val NOTIFICATION_PERMISSION_REQUEST_CODE = 1002
+        const val INSTALLED_APPS_PERMISSION_REQUEST_CODE = 1003
+        const val LOCAL_NETWORK_PERMISSION_REQUEST_CODE = 1004
     }
 }

android/app/src/main/kotlin/com/follow/clash/plugins/BatteryPlugin.kt

@@ -0,0 +1,241 @@
+package com.follow.clash.plugins
+
+import android.annotation.SuppressLint
+import android.app.Activity
+import android.content.ActivityNotFoundException
+import android.content.BroadcastReceiver
+import android.content.ComponentName
+import android.content.Context
+import android.content.Intent
+import android.content.IntentFilter
+import android.database.ContentObserver
+import android.os.Build
+import android.os.Handler
+import android.os.Looper
+import android.os.PowerManager
+import android.provider.Settings
+import androidx.core.net.toUri
+import com.follow.clash.common.Components
+import com.follow.clash.common.PendingCallback
+import com.follow.clash.common.registerReceiverCompat
+import io.flutter.embedding.engine.plugins.FlutterPlugin
+import io.flutter.embedding.engine.plugins.activity.ActivityAware
+import io.flutter.embedding.engine.plugins.activity.ActivityPluginBinding
+import io.flutter.plugin.common.EventChannel
+import io.flutter.plugin.common.MethodCall
+import io.flutter.plugin.common.MethodChannel
+import io.flutter.plugin.common.PluginRegistry
+
+class BatteryPlugin : FlutterPlugin, MethodChannel.MethodCallHandler, ActivityAware,
+    EventChannel.StreamHandler {
+
+    private lateinit var context: Context
+
+    private lateinit var methodChannel: MethodChannel
+
+    private lateinit var eventChannel: EventChannel
+
+    private var activityBinding: ActivityPluginBinding? = null
+
+    private val pendingRequest = PendingCallback<Unit>()
+
+    private var events: EventChannel.EventSink? = null
+
+    private var lastPublished: Boolean? = null
+
+    private val activityResultListener =
+        PluginRegistry.ActivityResultListener { requestCode, _, _ ->
+            if (requestCode != REQUEST_CODE) {
+                return@ActivityResultListener false
+            }
+            resolve()
+            true
+        }
+
+    private val allowlistReceiver = object : BroadcastReceiver() {
+        override fun onReceive(context: Context?, intent: Intent?) {
+            publish()
+        }
+    }
+
+    private val saverObserver = object : ContentObserver(Handler(Looper.getMainLooper())) {
+        override fun onChange(selfChange: Boolean) {
+            publish()
+        }
+    }
+
+    override fun onAttachedToEngine(binding: FlutterPlugin.FlutterPluginBinding) {
+        context = binding.applicationContext
+        methodChannel = MethodChannel(binding.binaryMessenger, "${Components.PACKAGE_NAME}/battery")
+        methodChannel.setMethodCallHandler(this)
+        eventChannel = EventChannel(
+            binding.binaryMessenger,
+            "${Components.PACKAGE_NAME}/battery/optimization",
+        )
+        eventChannel.setStreamHandler(this)
+    }
+
+    override fun onDetachedFromEngine(binding: FlutterPlugin.FlutterPluginBinding) {
+        methodChannel.setMethodCallHandler(null)
+        eventChannel.setStreamHandler(null)
+        onCancel(null)
+        resolve()
+    }
+
+    override fun onMethodCall(call: MethodCall, result: MethodChannel.Result) {
+        when (call.method) {
+            "requestIgnoreOptimizations" -> requestIgnoreOptimizations { result.success(null) }
+            else -> result.notImplemented()
+        }
+    }
+
+    override fun onListen(arguments: Any?, sink: EventChannel.EventSink) {
+        val ignoring = isIgnoringOptimizations()
+        sink.success(ignoring)
+        context.registerReceiverCompat(
+            allowlistReceiver,
+            IntentFilter(ACTION_POWER_SAVE_WHITELIST_CHANGED),
+        )
+        context.contentResolver.registerContentObserver(
+            Settings.System.getUriFor(MILLET_NO_RESTRICT_APP),
+            false,
+            saverObserver,
+        )
+        events = sink
+        lastPublished = ignoring
+    }
+
+    override fun onCancel(arguments: Any?) {
+        events ?: return
+        events = null
+        context.unregisterReceiver(allowlistReceiver)
+        context.contentResolver.unregisterContentObserver(saverObserver)
+    }
+
+    private fun publish() {
+        val sink = events ?: return
+        val ignoring = isIgnoringOptimizations()
+        if (ignoring == lastPublished) {
+            return
+        }
+        lastPublished = ignoring
+        sink.success(ignoring)
+    }
+
+    private fun resolve() {
+        publish()
+        pendingRequest.resolve(Unit)
+    }
+
+    private fun requestIgnoreOptimizations(callback: (Unit) -> Unit) {
+        val activity = activityBinding?.activity
+        if (activity == null || isIgnoringOptimizations()) {
+            callback(Unit)
+            return
+        }
+        pendingRequest.replace(callback, supersededValue = Unit)
+        val pages = if (isXiaomi) saverPages() else optimizationPages()
+        if (pages.none { launch(activity, it) }) {
+            resolve()
+        }
+    }
+
+    @SuppressLint("BatteryLife")
+    private fun optimizationPages(): List<Intent> {
+        // VPN continuity is the user-requested core function, so the direct exemption is intentional.
+        val prompt = Intent(
+            Settings.ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS,
+            "package:${context.packageName}".toUri(),
+        )
+        // Some ROMs drop the direct prompt; the allowlist page still lets the user exempt the app.
+        val allowlist = Intent(Settings.ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS)
+        return listOf(prompt, allowlist)
+    }
+
+    private fun saverPages(): List<Intent> {
+        val policy = Intent()
+            .setComponent(ComponentName(POWERKEEPER_PACKAGE, POWERKEEPER_POLICY_ACTIVITY))
+            .putExtra("package_name", context.packageName)
+            .putExtra(
+                "package_label",
+                context.applicationInfo.loadLabel(context.packageManager).toString(),
+            )
+        val details = Intent(
+            Settings.ACTION_APPLICATION_DETAILS_SETTINGS,
+            "package:${context.packageName}".toUri(),
+        )
+        return listOf(policy, details)
+    }
+
+    private fun launch(activity: Activity, page: Intent): Boolean = try {
+        @Suppress("DEPRECATION")
+        activity.startActivityForResult(page, REQUEST_CODE)
+        true
+    } catch (_: ActivityNotFoundException) {
+        false
+    } catch (_: SecurityException) {
+        false
+    }
+
+    // On Xiaomi the battery saver is what counts: "No restrictions" also allowlists the
+    // app, the allowlist alone does not stop PowerKeeper freezing it, and PowerKeeper
+    // drops a running VPN from the allowlist while the list follows the user's policy.
+    private fun isIgnoringOptimizations(): Boolean {
+        if (isXiaomi) {
+            return context.packageName in noRestrictionApps()
+        }
+        return context.getSystemService(PowerManager::class.java)
+            ?.isIgnoringBatteryOptimizations(context.packageName) ?: false
+    }
+
+    // PowerKeeper's comma-separated "No restrictions" packages, kept for user 0 only.
+    private fun noRestrictionApps(): List<String> {
+        val packages = try {
+            Settings.System.getString(context.contentResolver, MILLET_NO_RESTRICT_APP)
+        } catch (_: SecurityException) {
+            null
+        }
+        return packages?.split(',')?.map { it.trim() }.orEmpty()
+    }
+
+    override fun onAttachedToActivity(binding: ActivityPluginBinding) {
+        activityBinding = binding
+        binding.addActivityResultListener(activityResultListener)
+    }
+
+    override fun onDetachedFromActivityForConfigChanges() {
+        detachFromActivity()
+    }
+
+    override fun onReattachedToActivityForConfigChanges(binding: ActivityPluginBinding) {
+        onAttachedToActivity(binding)
+    }
+
+    override fun onDetachedFromActivity() {
+        detachFromActivity()
+        resolve()
+    }
+
+    private fun detachFromActivity() {
+        activityBinding?.removeActivityResultListener(activityResultListener)
+        activityBinding = null
+    }
+
+    private companion object {
+        val isXiaomi = Build.MANUFACTURER.equals("xiaomi", ignoreCase = true)
+
+        // Every plugin on the activity sees every result; AppPlugin holds 1001-1004.
+        const val REQUEST_CODE = 1005
+
+        // PowerManager keeps this action @hide, yet the system broadcasts it to
+        // registered receivers of the system user whenever the allowlist changes.
+        const val ACTION_POWER_SAVE_WHITELIST_CHANGED =
+            "android.os.action.POWER_SAVE_WHITELIST_CHANGED"
+
+        const val MILLET_NO_RESTRICT_APP = "MILLET_NO_RESTRICT_APP"
+
+        const val POWERKEEPER_PACKAGE = "com.miui.powerkeeper"
+
+        const val POWERKEEPER_POLICY_ACTIVITY = "com.miui.powerkeeper.ui.HiddenAppsConfigActivity"
+    }
+}

android/app/src/main/kotlin/com/follow/clash/plugins/ServicePlugin.kt

@@ -1,157 +1,145 @@
 package com.follow.clash.plugins
 
-import com.follow.clash.RunState
-import com.follow.clash.Service
-import com.follow.clash.State
-import com.follow.clash.awaitResult
+import com.follow.clash.ServiceController
+import com.follow.clash.ServiceState
 import com.follow.clash.common.Components
-import com.follow.clash.common.formatString
-import com.follow.clash.invokeMethodOnMainThread
-import com.follow.clash.models.AppState
-import com.follow.clash.service.models.NotificationParams
-import com.follow.clash.service.models.VpnOptions
+import com.follow.clash.models.SharedState
 import com.google.gson.Gson
 import io.flutter.embedding.engine.plugins.FlutterPlugin
+import io.flutter.plugin.common.BinaryMessenger
 import io.flutter.plugin.common.MethodCall
 import io.flutter.plugin.common.MethodChannel
+import io.flutter.plugin.common.StandardMethodCodec
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.SupervisorJob
+import kotlinx.coroutines.cancel
 import kotlinx.coroutines.launch
-import kotlinx.coroutines.sync.Semaphore
-import kotlinx.coroutines.sync.withPermit
 
-class ServicePlugin : FlutterPlugin, MethodChannel.MethodCallHandler,
-    CoroutineScope by CoroutineScope(SupervisorJob() + Dispatchers.Default) {
-    private lateinit var flutterMethodChannel: MethodChannel
+class ServicePlugin : FlutterPlugin, MethodChannel.MethodCallHandler {
+    private lateinit var messenger: BinaryMessenger
+    private lateinit var channel: MethodChannel
+    private lateinit var coreChannel: MethodChannel
+    private lateinit var scope: CoroutineScope
+    private val gson = Gson()
+    private var commandRevision = 0
 
-    override fun onAttachedToEngine(flutterPluginBinding: FlutterPlugin.FlutterPluginBinding) {
-        flutterMethodChannel = MethodChannel(
-            flutterPluginBinding.binaryMessenger, "${Components.PACKAGE_NAME}/service"
+    override fun onAttachedToEngine(binding: FlutterPlugin.FlutterPluginBinding) {
+        scope = CoroutineScope(SupervisorJob() + Dispatchers.Default)
+        messenger = binding.binaryMessenger
+        channel = MethodChannel(messenger, SERVICE_CHANNEL)
+        channel.setMethodCallHandler(this)
+        // Serial: watchRoute keeps the latest intent by the order calls reach the Core.
+        coreChannel = MethodChannel(
+            messenger,
+            CORE_CHANNEL,
+            StandardMethodCodec.INSTANCE,
+            messenger.makeBackgroundTaskQueue(),
         )
-        flutterMethodChannel.setMethodCallHandler(this)
+        coreChannel.setMethodCallHandler(::onCoreMethodCall)
     }
 
-    override fun onDetachedFromEngine(flutterPluginBinding: FlutterPlugin.FlutterPluginBinding) {
-        flutterMethodChannel.setMethodCallHandler(null)
+    override fun onDetachedFromEngine(binding: FlutterPlugin.FlutterPluginBinding) {
+        channel.setMethodCallHandler(null)
+        coreChannel.setMethodCallHandler(null)
+        scope.cancel()
+        ServiceController.setEventListener(null)
     }
 
-    override fun onMethodCall(call: MethodCall, result: MethodChannel.Result) = when (call.method) {
-        "init" -> {
-            handleInit(result)
-        }
-
-        "shutdown" -> {
-            handleShutdown(result)
-        }
-
-        "invokeAction" -> {
-            handleInvokeAction(call, result)
-        }
-
-        "getRunTime" -> {
-            handleGetRunTime(result)
-        }
-
-        "syncState" -> {
-            handleSyncState(call, result)
-        }
-
-        "start" -> {
-            handleStart(result)
-        }
-
-        "stop" -> {
-            handleStop(result)
-        }
-
-        else -> {
-            result.notImplemented()
+    override fun onMethodCall(call: MethodCall, result: MethodChannel.Result) {
+        when (call.method) {
+            "init" -> initialize(result)
+            "shutdown" -> shutdown(result)
+            "getRunTime" -> getRunTime(result)
+            "syncState" -> syncState(call, result)
+            "start" -> start(call, result)
+            "stop" -> stop(call, result)
+            else -> result.notImplemented()
         }
     }
 
-    private fun handleInvokeAction(call: MethodCall, result: MethodChannel.Result) {
-        launch {
-            val data = call.arguments<String>()!!
-            val res = mutableListOf<ByteArray>()
-            Service.invokeAction(data) { byteArray, isSuccess ->
-                res.add(byteArray ?: byteArrayOf())
-                if (isSuccess) {
-                    result.success(res.formatString())
-                }
-            }
+    private fun onCoreMethodCall(call: MethodCall, result: MethodChannel.Result) {
+        when (call.method) {
+            "invokeMethod" -> invokeMethod(call, result)
+            else -> result.notImplemented()
         }
     }
 
-    private fun handleShutdown(result: MethodChannel.Result) {
-        Service.unbind()
+    private fun initialize(result: MethodChannel.Result) {
+        ServiceController.setEventListener(::sendEvent)
+            .onSuccess { result.success("") }
+            .onFailure { error -> result.success(error.message.orEmpty()) }
+    }
+
+    private fun shutdown(result: MethodChannel.Result) {
+        ServiceController.setEventListener(null)
         result.success(true)
     }
 
-    private fun handleStart(result: MethodChannel.Result) {
-        State.handleStartService()
+    private fun invokeMethod(call: MethodCall, result: MethodChannel.Result) {
+        val data = call.arguments as? String
+        if (data == null) {
+            result.error("INVALID_ARGUMENT", "Method call payload must be a string", null)
+            return
+        }
+        ServiceController.invokeMethod(data) { response ->
+            result.success(response)
+        }.onFailure { error ->
+            result.error("CORE_ERROR", error.message, null)
+        }
+    }
+
+    private fun getRunTime(result: MethodChannel.Result) {
+        scope.launch {
+            result.success(ServiceState.awaitRunTime())
+        }
+    }
+
+    private fun syncState(call: MethodCall, result: MethodChannel.Result) {
+        val data = call.arguments as? String
+        val state = runCatching {
+            gson.fromJson(data, SharedState::class.java)
+        }.getOrNull()
+        if (state == null) {
+            result.success("Invalid shared state")
+            return
+        }
+        scope.launch {
+            ServiceState.syncSharedState(state)
+            result.success("")
+        }
+    }
+
+    private fun start(call: MethodCall, result: MethodChannel.Result) {
+        commandRevision = call.arguments as? Int ?: commandRevision
+        ServiceState.requestStart()
         result.success(true)
     }
 
-    private fun handleStop(result: MethodChannel.Result) {
-        State.handleStopService()
+    private fun stop(call: MethodCall, result: MethodChannel.Result) {
+        commandRevision = call.arguments as? Int ?: commandRevision
+        ServiceState.requestStop()
         result.success(true)
     }
 
-    suspend fun handleGetVpnOptions(): VpnOptions? {
-        val res = flutterMethodChannel.awaitResult<String>("getVpnOptions", null)
-        return Gson().fromJson(res, VpnOptions::class.java)
-    }
-
-    val semaphore = Semaphore(10)
-
-    fun handleSendEvent(value: String?) {
-        launch(Dispatchers.Main) {
-            semaphore.withPermit {
-                flutterMethodChannel.invokeMethod("event", value)
+    // Read on the platform thread, where start and stop arrive: revision and intent are one instant.
+    fun notifyStopped() {
+        scope.launch(Dispatchers.Main) {
+            if (!ServiceState.isRunRequested) {
+                channel.invokeMethod("stopped", commandRevision)
             }
         }
     }
 
-    private fun onServiceDisconnected(message: String) {
-        State.runStateFlow.tryEmit(RunState.STOP)
-        flutterMethodChannel.invokeMethodOnMainThread<Any>("crash", message)
-    }
-
-    private fun handleSyncState(call: MethodCall, result: MethodChannel.Result) {
-        launch {
-            val data = call.arguments<String>()!!
-            val params = Gson().fromJson(data, AppState::class.java)
-            Service.updateNotificationParams(
-                NotificationParams(
-                    title = params.currentProfileName,
-                    stopText = params.stopText,
-                    onlyStatisticsProxy = params.onlyStatisticsProxy
-                )
-            ).onSuccess {
-                result.success("")
-            }.onFailure {
-                result.success(it.message)
-            }
+    private fun sendEvent(value: ByteArray) {
+        val message = StandardMethodCodec.INSTANCE.encodeMethodCall(MethodCall("event", value))
+        scope.launch(Dispatchers.Main) {
+            messenger.send(SERVICE_CHANNEL, message)
         }
     }
 
-    fun handleInit(result: MethodChannel.Result) {
-        Service.bind()
-        launch {
-            Service.setMessageCallback {
-                handleSendEvent(it)
-            }.onSuccess {
-                result.success("")
-            }.onFailure {
-                result.success(it.message)
-            }
-
-        }
-        Service.onServiceDisconnected = ::onServiceDisconnected
+    private companion object {
+        val SERVICE_CHANNEL = "${Components.PACKAGE_NAME}/service"
+        val CORE_CHANNEL = "${Components.PACKAGE_NAME}/core"
     }
-
-    private fun handleGetRunTime(result: MethodChannel.Result) {
-        return result.success(State.runTime)
-    }
-}
+}

android/app/src/main/kotlin/com/follow/clash/plugins/TilePlugin.kt

@@ -7,7 +7,6 @@ import io.flutter.plugin.common.MethodCall
 import io.flutter.plugin.common.MethodChannel
 
 class TilePlugin : FlutterPlugin, MethodChannel.MethodCallHandler {
-
     private lateinit var channel: MethodChannel
 
     override fun onAttachedToEngine(flutterPluginBinding: FlutterPlugin.FlutterPluginBinding) {
@@ -21,13 +20,10 @@ class TilePlugin : FlutterPlugin, MethodChannel.MethodCallHandler {
     }
 
     fun handleStart() {
-        channel.invokeMethodOnMainThread<Any>("start", null)
+        channel.invokeMethodOnMainThread("start")
     }
 
-    fun handleStop() {
-        channel.invokeMethodOnMainThread<Any>("stop", null)
+    override fun onMethodCall(call: MethodCall, result: MethodChannel.Result) {
+        result.notImplemented()
     }
-
-
-    override fun onMethodCall(call: MethodCall, result: MethodChannel.Result) {}
-}
+}

android/app/src/main/res/drawable/ic_launcher_foreground.xml

@@ -1,25 +1,25 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="108dp"
-    android:height="108dp"
-    android:viewportWidth="240"
-    android:viewportHeight="240">
-  <group android:scaleX="0.924"
-      android:scaleY="0.924"
-      android:translateX="9.12"
-      android:translateY="9.12">
-    <group android:scaleX="0.63461536"
-        android:scaleY="0.63461536"
-        android:translateX="45.96154"
-        android:translateY="43.846153">
-      <path
-          android:pathData="M60.65,89.6L154.18,35.6A18,18 107.59,0 1,178.77 42.19L178.77,42.19A18,18 107.59,0 1,172.18 66.78L78.65,120.78A18,18 106.67,0 1,54.06 114.19L54.06,114.19A18,18 106.67,0 1,60.65 89.6z"
-          android:fillColor="#6666FB"/>
-      <path
-          android:pathData="M84.65,131.17L131.42,104.17A18,18 107.83,0 1,156 110.76L156,110.76A18,18 107.83,0 1,149.42 135.35L102.65,162.35A18,18 106.67,0 1,78.06 155.76L78.06,155.76A18,18 106.67,0 1,84.65 131.17z"
-          android:fillColor="#336AB6"/>
-      <path
-          android:pathData="M108.65,172.74L108.65,172.74A18,18 116.03,0 1,133.24 179.33L133.24,179.33A18,18 116.03,0 1,126.65 203.92L126.65,203.92A18,18 116.03,0 1,102.06 197.33L102.06,197.33A18,18 116.03,0 1,108.65 172.74z"
-          android:fillColor="#5CA8E9"/>
+        android:width="108dp"
+        android:height="108dp"
+        android:viewportWidth="240"
+        android:viewportHeight="240">
+    <group android:scaleX="0.924"
+           android:scaleY="0.924"
+           android:translateX="9.12"
+           android:translateY="9.12">
+        <group android:scaleX="0.63461536"
+               android:scaleY="0.63461536"
+               android:translateX="45.96154"
+               android:translateY="43.846153">
+            <path
+                    android:pathData="M60.65,89.6L154.18,35.6A18,18 107.59,0 1,178.77 42.19L178.77,42.19A18,18 107.59,0 1,172.18 66.78L78.65,120.78A18,18 106.67,0 1,54.06 114.19L54.06,114.19A18,18 106.67,0 1,60.65 89.6z"
+                    android:fillColor="#6666FB"/>
+            <path
+                    android:pathData="M84.65,131.17L131.42,104.17A18,18 107.83,0 1,156 110.76L156,110.76A18,18 107.83,0 1,149.42 135.35L102.65,162.35A18,18 106.67,0 1,78.06 155.76L78.06,155.76A18,18 106.67,0 1,84.65 131.17z"
+                    android:fillColor="#336AB6"/>
+            <path
+                    android:pathData="M108.65,172.74L108.65,172.74A18,18 116.03,0 1,133.24 179.33L133.24,179.33A18,18 116.03,0 1,126.65 203.92L126.65,203.92A18,18 116.03,0 1,102.06 197.33L102.06,197.33A18,18 116.03,0 1,108.65 172.74z"
+                    android:fillColor="#5CA8E9"/>
+        </group>
     </group>
-  </group>
 </vector>

android/app/src/main/res/drawable/ic_launcher_foreground_tv.xml

@@ -0,0 +1,21 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="240"
+    android:viewportHeight="240">
+    <group
+        android:scaleX="0.9"
+        android:scaleY="0.9"
+        android:translateX="15.23"
+        android:translateY="12.22">
+        <path
+            android:fillColor="#6666FB"
+            android:pathData="M60.65,89.6L154.18,35.6A18,18 107.59,0 1,178.77 42.19L178.77,42.19A18,18 107.59,0 1,172.18 66.78L78.65,120.78A18,18 106.67,0 1,54.06 114.19L54.06,114.19A18,18 106.67,0 1,60.65 89.6z" />
+        <path
+            android:fillColor="#336AB6"
+            android:pathData="M84.65,131.17L131.42,104.17A18,18 107.83,0 1,156 110.76L156,110.76A18,18 107.83,0 1,149.42 135.35L102.65,162.35A18,18 106.67,0 1,78.06 155.76L78.06,155.76A18,18 106.67,0 1,84.65 131.17z" />
+        <path
+            android:fillColor="#5CA8E9"
+            android:pathData="M108.65,172.74L108.65,172.74A18,18 116.03,0 1,133.24 179.33L133.24,179.33A18,18 116.03,0 1,126.65 203.92L126.65,203.92A18,18 116.03,0 1,102.06 197.33L102.06,197.33A18,18 116.03,0 1,108.65 172.74z" />
+    </group>
+</vector>

android/app/src/main/res/drawable/ic_shortcut_start.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="48dp"
+    android:height="48dp"
+    android:viewportWidth="48"
+    android:viewportHeight="48">
+    <path
+        android:fillColor="@color/shortcut_background"
+        android:pathData="M24,2 A22,22 0 1 1 24,46 A22,22 0 1 1 24,2 Z" />
+    <group
+        android:scaleX="1.35"
+        android:scaleY="1.35"
+        android:translateX="7.8"
+        android:translateY="7.8">
+        <path
+            android:fillColor="#FFFFFF"
+            android:pathData="M8.30,7.74 A1.2,1.2 0 0 1 10.12,6.71 L17.12,10.98 A1.2,1.2 0 0 1 17.12,13.02 L10.12,17.29 A1.2,1.2 0 0 1 8.30,16.26 Z"
+            android:strokeColor="#FFFFFF"
+            android:strokeLineCap="round"
+            android:strokeLineJoin="round"
+            android:strokeWidth="1.8" />
+    </group>
+</vector>

android/app/src/main/res/drawable/ic_shortcut_stop.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="48dp"
+    android:height="48dp"
+    android:viewportWidth="48"
+    android:viewportHeight="48">
+    <path
+        android:fillColor="@color/shortcut_background"
+        android:pathData="M24,2 A22,22 0 1 1 24,46 A22,22 0 1 1 24,2 Z" />
+    <group
+        android:scaleX="1.35"
+        android:scaleY="1.35"
+        android:translateX="7.8"
+        android:translateY="7.8">
+        <path
+            android:fillColor="#FFFFFF"
+            android:pathData="M14.90,7.00 A1.1,1.1 0 0 1 16.00,5.90 L16.00,5.90 A1.1,1.1 0 0 1 17.10,7.00 L17.10,17.00 A1.1,1.1 0 0 1 16.00,18.10 L16.00,18.10 A1.1,1.1 0 0 1 14.90,17.00 Z M6.90,7.00 A1.1,1.1 0 0 1 8.00,5.90 L8.00,5.90 A1.1,1.1 0 0 1 9.10,7.00 L9.10,17.00 A1.1,1.1 0 0 1 8.00,18.10 L8.00,18.10 A1.1,1.1 0 0 1 6.90,17.00 Z"
+            android:strokeColor="#FFFFFF"
+            android:strokeLineCap="round"
+            android:strokeLineJoin="round"
+            android:strokeWidth="1.8" />
+    </group>
+</vector>

android/app/src/main/res/drawable/ic_shortcut_toggle.xml

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="48dp"
+    android:height="48dp"
+    android:viewportWidth="48"
+    android:viewportHeight="48">
+    <path
+        android:fillColor="@color/shortcut_background"
+        android:pathData="M24,2 A22,22 0 1 1 24,46 A22,22 0 1 1 24,2 Z" />
+    <group
+        android:scaleX="1.35"
+        android:scaleY="1.35"
+        android:translateX="7.8"
+        android:translateY="7.8">
+        <path
+            android:fillColor="#FFFFFF"
+            android:pathData="M2.90,12.00 A5.5,5.5 0 0 1 8.40,6.50 L15.60,6.50 A5.5,5.5 0 0 1 21.10,12.00 L21.10,12.00 A5.5,5.5 0 0 1 15.60,17.50 L8.40,17.50 A5.5,5.5 0 0 1 2.90,12.00 Z"
+            android:strokeColor="#FFFFFF"
+            android:strokeLineCap="round"
+            android:strokeLineJoin="round"
+            android:strokeWidth="1.8" />
+        <path
+            android:fillColor="@color/shortcut_background"
+            android:pathData="M8.4,9.2 A2.8,2.8 0 1 1 8.4,14.8 A2.8,2.8 0 1 1 8.4,9.2 Z" />
+    </group>
+</vector>

android/app/src/main/res/mipmap-television-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground_tv" />
+</adaptive-icon>

android/app/src/main/res/values/colors.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="shortcut_background">#6666FB</color>
+</resources>

android/app/src/main/res/xml/file_paths.xml

@@ -1,6 +0,0 @@
-<paths>
-    <files-path
-        name="files"
-        path="."/>
-</paths>
-

android/app/src/main/res/xml/network_security_config.xml

@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<network-security-config xmlns:tools="http://schemas.android.com/tools"
-    tools:ignore="AcceptsUserCertificates">
-    <base-config>
-        <trust-anchors>
-            <certificates src="system" />
-            <certificates src="user" />
-        </trust-anchors>
-    </base-config>
-    <domain-config cleartextTrafficPermitted="true">
-        <domain includeSubdomains="true">localhost</domain>
-        <domain includeSubdomains="true">127.0.0.1</domain>
-    </domain-config>
-</network-security-config>

android/app/src/profile/AndroidManifest.xml

@@ -1,7 +0,0 @@
-<manifest xmlns:android="http://schemas.android.com/apk/res/android">
-    <!-- The INTERNET permission is required for development. Specifically,
-         the Flutter tool needs it to communicate with the running application
-         to allow setting breakpoints, to provide hot reload, etc.
-    -->
-    <uses-permission android:name="android.permission.INTERNET"/>
-</manifest>

android/build.gradle.kts

@@ -1,19 +1,10 @@
-buildscript {
-    dependencies {
-        classpath(libs.build.kotlin)
-    }
-}
-
-plugins {
-    id("com.android.library") apply false
-}
-
 allprojects {
     repositories {
         google()
         mavenCentral()
     }
 }
+
 val newBuildDir: Directory =
     rootProject.layout.buildDirectory
         .dir("../../build")
@@ -24,11 +15,25 @@ subprojects {
     val newSubprojectBuildDir: Directory = newBuildDir.dir(project.name)
     project.layout.buildDirectory.value(newSubprojectBuildDir)
 }
+
 subprojects {
     project.evaluationDependsOn(":app")
 }
 
+gradle.projectsEvaluated {
+    allprojects {
+        tasks.withType<JavaCompile>().configureEach {
+            sourceCompatibility = JavaVersion.VERSION_17.toString()
+            targetCompatibility = JavaVersion.VERSION_17.toString()
+        }
+        tasks.withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile>().configureEach {
+            compilerOptions {
+                jvmTarget.set(org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_17)
+            }
+        }
+    }
+}
+
 tasks.register<Delete>("clean") {
     delete(rootProject.layout.buildDirectory)
 }
-

android/common/build.gradle.kts

@@ -2,7 +2,6 @@ import org.jetbrains.kotlin.gradle.dsl.JvmTarget
 
 plugins {
     id("com.android.library")
-    id("org.jetbrains.kotlin.android")
 }
 
 android {
@@ -10,17 +9,7 @@ android {
     compileSdk = libs.versions.compileSdk.get().toInt()
 
     defaultConfig {
-        minSdk = 21
-        consumerProguardFiles("consumer-rules.pro")
-    }
-
-    buildTypes {
-        release {
-            proguardFiles(
-                getDefaultProguardFile("proguard-android-optimize.txt"),
-                "proguard-rules.pro"
-            )
-        }
+        minSdk = libs.versions.minSdk.get().toInt()
     }
 
     compileOptions {
@@ -28,6 +17,10 @@ android {
         targetCompatibility = JavaVersion.VERSION_17
     }
 
+    sourceSets {
+        // Unit tests live under android/tests/ instead of each module's src/test.
+        getByName("test").java.setSrcDirs(listOf("../tests/common"))
+    }
 }
 
 kotlin {
@@ -39,4 +32,5 @@ kotlin {
 dependencies {
     implementation(libs.androidx.core)
     implementation(libs.gson)
-}
+    testImplementation(libs.junit)
+}

android/common/src/main/java/com/follow/clash/common/BroadcastLease.kt

@@ -0,0 +1,32 @@
+package com.follow.clash.common
+
+import java.util.concurrent.atomic.AtomicBoolean
+
+/**
+ * A `BroadcastReceiver.goAsync()` path holds the broadcast open until its
+ * `PendingResult` is finished, and finishing twice throws. Normal completion and
+ * the timeout watchdog both race to release it, so the winner is decided here
+ * rather than by whichever callback happens to run first.
+ *
+ * Releasing the lease says only that Android may stop waiting for this receiver.
+ * It does not cancel, reverse, or otherwise redefine the work the broadcast
+ * started, which keeps running under its own owner.
+ */
+class BroadcastLease(private val release: () -> Unit) {
+    private val released = AtomicBoolean(false)
+
+    val isReleased: Boolean
+        get() = released.get()
+
+    fun release(onRelease: () -> Unit = {}): Boolean {
+        if (!released.compareAndSet(false, true)) {
+            return false
+        }
+        try {
+            onRelease()
+        } finally {
+            release.invoke()
+        }
+        return true
+    }
+}

android/common/src/main/java/com/follow/clash/common/Components.kt

@@ -5,12 +5,12 @@ import android.content.ComponentName
 object Components {
     const val PACKAGE_NAME = "com.follow.clash"
 
-    val MAIN_ACTIVITY =
+    val mainActivity =
         ComponentName(GlobalState.packageName, "${PACKAGE_NAME}.MainActivity")
 
-    val TEMP_ACTIVITY =
-        ComponentName(GlobalState.packageName, "${PACKAGE_NAME}.TempActivity")
+    val quickActionActivity =
+        ComponentName(GlobalState.packageName, "${PACKAGE_NAME}.QuickActionActivity")
 
-    val BROADCAST_RECEIVER =
-        ComponentName(GlobalState.packageName, "${PACKAGE_NAME}.BroadcastReceiver")
-}
+    val serviceBroadcastReceiver =
+        ComponentName(GlobalState.packageName, "${PACKAGE_NAME}.ServiceBroadcastReceiver")
+}

android/common/src/main/java/com/follow/clash/common/Enums.kt

@@ -2,7 +2,6 @@ package com.follow.clash.common
 
 import com.google.gson.annotations.SerializedName
 
-
 enum class QuickAction {
     STOP,
     START,
@@ -10,9 +9,8 @@ enum class QuickAction {
 }
 
 enum class BroadcastAction {
-    START,
-    STOP,
-    TOGGLE,
+    VPN_START_REQUESTED,
+    VPN_REVOKED,
 }
 
 enum class AccessControlMode {
@@ -21,4 +19,4 @@ enum class AccessControlMode {
 
     @SerializedName("rejectSelected")
     REJECT_SELECTED,
-}
+}

android/common/src/main/java/com/follow/clash/common/Ext.kt

@@ -9,57 +9,33 @@ import android.app.Service
 import android.content.BroadcastReceiver
 import android.content.ComponentName
 import android.content.Context
+import android.content.Context.RECEIVER_EXPORTED
 import android.content.Context.RECEIVER_NOT_EXPORTED
 import android.content.Intent
 import android.content.IntentFilter
-import android.content.ServiceConnection
 import android.content.pm.ServiceInfo.FOREGROUND_SERVICE_TYPE_SPECIAL_USE
 import android.os.Build
-import android.os.Handler
-import android.os.IBinder
-import android.os.Looper
-import android.os.RemoteException
-import android.util.Log
-import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.channels.awaitClose
-import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.callbackFlow
-import kotlinx.coroutines.flow.retryWhen
-import kotlinx.coroutines.withContext
-import java.nio.charset.Charset
 import kotlin.reflect.KClass
 
-//fun Context.startForegroundServiceCompat(intent: Intent?) {
-//    if (Build.VERSION.SDK_INT >= 26) {
-//        startForegroundService(intent)
-//    } else {
-//        startService(intent)
-//    }
-//}
-
 val KClass<*>.intent: Intent
     get() = Intent(GlobalState.application, this.java)
 
-fun Service.startForegroundCompat(id: Int, notification: Notification) {
-    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.UPSIDE_DOWN_CAKE) {
-        startForeground(id, notification, FOREGROUND_SERVICE_TYPE_SPECIAL_USE)
-    } else {
-        startForeground(id, notification)
-    }
-}
-
 val ComponentName.intent: Intent
     get() = Intent().apply {
-        setComponent(this@intent)
-        setPackage(GlobalState.packageName)
+        component = this@intent
     }
 
 val QuickAction.action: String
     get() = "${GlobalState.application.packageName}.action.${this.name}"
 
+val QuickAction.shortcutId: String
+    get() = name.lowercase()
+
 val QuickAction.quickIntent: Intent
-    get() = Components.TEMP_ACTIVITY.intent.apply {
+    get() = Components.quickActionActivity.intent.apply {
         action = this@quickIntent.action
         addFlags(Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_MULTIPLE_TASK)
     }
@@ -67,59 +43,71 @@ val QuickAction.quickIntent: Intent
 val BroadcastAction.action: String
     get() = "${GlobalState.application.packageName}.intent.action.${this.name}"
 
-val BroadcastAction.quickIntent: Intent
-    get() = Components.BROADCAST_RECEIVER.intent.apply {
-        action = this@quickIntent.action
-    }
-
 fun BroadcastAction.sendBroadcast() {
-    val intent = Intent().apply {
-        action = this@sendBroadcast.action
-        Log.d("[sendBroadcast]", "$action")
-        setPackage(GlobalState.packageName)
+    val broadcastAction = action
+    val intent = Intent(broadcastAction).apply {
+        component = Components.serviceBroadcastReceiver
     }
     GlobalState.application.sendBroadcast(
-        intent, GlobalState.RECEIVE_BROADCASTS_PERMISSIONS
+        intent,
+        GlobalState.receiveBroadcastPermission,
     )
 }
 
-
 val Intent.toPendingIntent: PendingIntent
     get() = PendingIntent.getActivity(
         GlobalState.application,
         0,
         this,
-        PendingIntent.FLAG_IMMUTABLE or PendingIntent.FLAG_UPDATE_CURRENT
+        PendingIntent.FLAG_IMMUTABLE or PendingIntent.FLAG_UPDATE_CURRENT,
     )
 
+fun Context.ensureNotificationChannel() {
+    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
+        return
+    }
+    val manager = getSystemService(NotificationManager::class.java) ?: return
+    if (manager.getNotificationChannel(GlobalState.NOTIFICATION_CHANNEL) != null) {
+        return
+    }
+    manager.createNotificationChannel(
+        NotificationChannel(
+            GlobalState.NOTIFICATION_CHANNEL,
+            getString(R.string.service_channel_name),
+            NotificationManager.IMPORTANCE_LOW,
+        ),
+    )
+}
 
 fun Service.startForeground(notification: Notification) {
-    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-        val manager = getSystemService(NotificationManager::class.java)
-        var channel = manager?.getNotificationChannel(GlobalState.NOTIFICATION_CHANNEL)
-        if (channel == null) {
-            channel = NotificationChannel(
-                GlobalState.NOTIFICATION_CHANNEL,
-                "SERVICE_CHANNEL",
-                NotificationManager.IMPORTANCE_LOW
-            )
-            manager?.createNotificationChannel(channel)
-        }
+    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.UPSIDE_DOWN_CAKE) {
+        startForeground(
+            GlobalState.NOTIFICATION_ID,
+            notification,
+            FOREGROUND_SERVICE_TYPE_SPECIAL_USE,
+        )
+    } else {
+        startForeground(GlobalState.NOTIFICATION_ID, notification)
     }
-    startForegroundCompat(GlobalState.NOTIFICATION_ID, notification)
 }
 
 @SuppressLint("UnspecifiedRegisterReceiverFlag")
 fun Context.registerReceiverCompat(
     receiver: BroadcastReceiver,
     filter: IntentFilter,
+    exported: Boolean = false,
 ) = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
-    registerReceiver(receiver, filter, RECEIVER_NOT_EXPORTED)
+    registerReceiver(
+        receiver,
+        filter,
+        if (exported) RECEIVER_EXPORTED else RECEIVER_NOT_EXPORTED,
+    )
 } else {
     registerReceiver(receiver, filter)
 }
 
 fun Context.receiveBroadcastFlow(
+    exported: Boolean = false,
     configure: IntentFilter.() -> Unit,
 ): Flow<Intent> = callbackFlow {
     val filter = IntentFilter().apply(configure)
@@ -129,110 +117,6 @@ fun Context.receiveBroadcastFlow(
             trySend(intent)
         }
     }
-    registerReceiverCompat(receiver, filter)
+    registerReceiverCompat(receiver, filter, exported)
     awaitClose { unregisterReceiver(receiver) }
 }
-
-
-inline fun <reified T : IBinder> Context.bindServiceFlow(
-    intent: Intent,
-    flags: Int = Context.BIND_AUTO_CREATE,
-    maxRetries: Int = 5,
-    retryDelayMillis: Long = 200L
-): Flow<Pair<IBinder?, String>> = callbackFlow {
-    val connection = object : ServiceConnection {
-        override fun onServiceConnected(name: ComponentName?, binder: IBinder?) {
-            if (binder != null) {
-                try {
-                    @Suppress("UNCHECKED_CAST") val casted = binder as? T
-                    if (casted != null) {
-                        trySend(Pair(casted, ""))
-                    } else {
-                        trySend(Pair(null, "Binder is not of type ${T::class.java}"))
-                    }
-                } catch (e: RemoteException) {
-                    trySend(Pair(null, "Failed to link to death: ${e.message}"))
-                }
-            } else {
-                trySend(Pair(null, "Binder empty"))
-            }
-        }
-
-        override fun onServiceDisconnected(name: ComponentName?) {
-            trySend(Pair(null, "Service disconnected"))
-        }
-    }
-
-    val success = withContext(Dispatchers.Main) {
-        bindService(intent, connection, flags)
-    }
-
-    if (!success) {
-        throw IllegalStateException("bindService() failed, will retry")
-    }
-
-    awaitClose {
-        Handler(Looper.getMainLooper()).post {
-            unbindService(connection)
-        }
-    }
-}.retryWhen { cause, attempt ->
-    if (attempt < maxRetries && cause is Exception) {
-        delay(retryDelayMillis)
-        true
-    } else {
-        false
-    }
-}
-
-
-val Long.formatBytes: String
-    get() {
-        val units = arrayOf("B", "KB", "MB", "GB", "TB")
-        var size = this.toDouble()
-        var unitIndex = 0
-
-        while (size >= 1024 && unitIndex < units.size - 1) {
-            size /= 1024
-            unitIndex++
-        }
-
-        return if (unitIndex == 0) {
-            "${size.toLong()}${units[unitIndex]}"
-        } else {
-            "%.1f${units[unitIndex]}".format(size)
-        }
-    }
-
-fun String.chunkedForAidl(charset: Charset = Charsets.UTF_8): List<ByteArray> {
-    val allBytes = toByteArray(charset)
-    val total = allBytes.size
-
-    val maxBytes = when {
-        total <= 100 * 1024 -> total
-        total <= 1024 * 1024 -> 64 * 1024
-        total <= 10 * 1024 * 1024 -> 128 * 1024
-        else -> 256 * 1024
-    }
-
-    val result = mutableListOf<ByteArray>()
-    var index = 0
-    while (index < total) {
-        val end = minOf(index + maxBytes, total)
-        result.add(allBytes.copyOfRange(index, end))
-        index = end
-    }
-    return result
-}
-
-
-fun <T : List<ByteArray>> T.formatString(charset: Charset = Charsets.UTF_8): String {
-    val totalSize = this.sumOf { it.size }
-    val combined = ByteArray(totalSize)
-    var offset = 0
-    forEach { byteArray ->
-        byteArray.copyInto(combined, offset)
-        offset += byteArray.size
-    }
-    return String(combined, charset)
-}

android/common/src/main/java/com/follow/clash/common/GlobalState.kt

@@ -1,34 +1,53 @@
 package com.follow.clash.common
 
+import android.app.ActivityManager
 import android.app.Application
+import android.os.Build
 import android.util.Log
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.SupervisorJob
 
-object GlobalState : CoroutineScope by CoroutineScope(Dispatchers.Default) {
-
+object GlobalState : CoroutineScope by CoroutineScope(SupervisorJob() + Dispatchers.Default) {
     const val NOTIFICATION_CHANNEL = "FlClash"
-
     const val NOTIFICATION_ID = 1
+    private const val ANY_PID = 0
+    private const val EVERY_EXIT_RECORD = 0
 
     val packageName: String
-        get() = _application.packageName
+        get() = application.packageName
 
-    val RECEIVE_BROADCASTS_PERMISSIONS: String
-        get() = "${packageName}.permission.RECEIVE_BROADCASTS"
-
-
-    private lateinit var _application: Application
+    val receiveBroadcastPermission: String
+        get() = "$packageName.permission.RECEIVE_BROADCASTS"
 
     val application: Application
-        get() = _application
+        get() = checkNotNull(appInstance) { "GlobalState is not initialized" }
 
-
-    fun log(text: String) {
-        Log.d("[FlClash]", text)
-    }
+    @Volatile
+    private var appInstance: Application? = null
 
     fun init(application: Application) {
-        _application = application
+        appInstance = application
     }
-}
+
+    fun log(text: String) {
+        Log.d("FlClash", text)
+    }
+
+    fun lastExitInfo(): Map<String, Any?>? {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.R) return null
+        val manager = application.getSystemService(ActivityManager::class.java) ?: return null
+        val info = runCatching {
+            manager.getHistoricalProcessExitReasons(
+                application.packageName,
+                ANY_PID,
+                EVERY_EXIT_RECORD,
+            )
+        }.getOrNull()?.firstOrNull { it.processName == application.packageName } ?: return null
+        return mapOf(
+            "reason" to info.reason,
+            "timestamp" to info.timestamp,
+            "description" to info.description,
+        )
+    }
+}

android/common/src/main/java/com/follow/clash/common/PendingCallback.kt

@@ -0,0 +1,53 @@
+package com.follow.clash.common
+
+/**
+ * Only the newest request is ever pending: [replace] settles the request it
+ * supersedes rather than dropping it, so no caller is left waiting forever. The
+ * slot is cleared before the callback runs, so a callback that starts another
+ * request cannot resolve itself twice.
+ *
+ * The two ends of such a hop live on different threads — the request is started
+ * from whatever coroutine wants the permission, the answer arrives on the main
+ * thread through `onActivityResult` — so every read and write of the slot is a
+ * single atomic swap. Without that, a resolve that has already read the slot can
+ * clear a callback a concurrent replace installed after it, and the request that
+ * callback belonged to never completes: the VPN consent answer is lost and the
+ * lock the start path holds is never released.
+ *
+ * Callbacks run outside the lock. They resume coroutines and can start the next
+ * request, and holding the monitor across that would make the slot's lock part
+ * of every caller's lock order.
+ */
+class PendingCallback<T> {
+    private val lock = Any()
+    private var callback: ((T) -> Unit)? = null
+
+    val isPending: Boolean
+        get() = synchronized(lock) { callback != null }
+
+    fun replace(next: (T) -> Unit, supersededValue: T) {
+        val superseded = synchronized(lock) {
+            val current = callback
+            callback = next
+            current
+        }
+        superseded?.invoke(supersededValue)
+    }
+
+    fun resolve(value: T) {
+        val current = synchronized(lock) {
+            val current = callback ?: return
+            callback = null
+            current
+        }
+        current(value)
+    }
+
+    fun cancel(target: (T) -> Unit) {
+        synchronized(lock) {
+            if (callback === target) {
+                callback = null
+            }
+        }
+    }
+}

android/common/src/main/java/com/follow/clash/common/RunIntentArbiter.kt

@@ -0,0 +1,28 @@
+package com.follow.clash.common
+
+import java.util.concurrent.atomic.AtomicReference
+
+/**
+ * Every request mints a fresh [Token]. Work that was started for an older token is obsolete once a
+ * newer request arrives, so callers check [isCurrent] before applying a result and roll back with
+ * [resetToStopped], which only wins while the token is still the latest one.
+ */
+class RunIntentArbiter(initialRunning: Boolean = false) {
+    class Token internal constructor(
+        val running: Boolean,
+    )
+
+    private val latest = AtomicReference(Token(initialRunning))
+
+    val isRunningRequested: Boolean
+        get() = latest.get().running
+
+    fun current(): Token = latest.get()
+
+    fun request(running: Boolean): Token = Token(running).also(latest::set)
+
+    fun isCurrent(token: Token): Boolean = latest.get() === token
+
+    fun resetToStopped(token: Token): Boolean =
+        latest.compareAndSet(token, Token(running = false))
+}

android/common/src/main/java/com/follow/clash/common/Service.kt

@@ -1,72 +0,0 @@
-package com.follow.clash.common
-
-import android.content.Intent
-import android.os.IBinder
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.Job
-import kotlinx.coroutines.SupervisorJob
-import kotlinx.coroutines.flow.MutableStateFlow
-import kotlinx.coroutines.flow.StateFlow
-import kotlinx.coroutines.flow.filterNotNull
-import kotlinx.coroutines.flow.first
-import kotlinx.coroutines.launch
-import kotlinx.coroutines.withTimeout
-import java.util.concurrent.atomic.AtomicBoolean
-
-class ServiceDelegate<T>(
-    private val intent: Intent,
-    private val onServiceDisconnected: ((String) -> Unit)? = null,
-    private val interfaceCreator: (IBinder) -> T,
-) : CoroutineScope by CoroutineScope(SupervisorJob() + Dispatchers.Default) {
-
-    private val _bindingState = AtomicBoolean(false)
-
-    private var _serviceState = MutableStateFlow<Pair<T?, String>?>(null)
-
-    val serviceState: StateFlow<Pair<T?, String>?> = _serviceState
-    private var job: Job? = null
-
-    private fun handleBind(data: Pair<IBinder?, String>) {
-        data.first?.let {
-            _serviceState.value = Pair(interfaceCreator(it), data.second)
-        } ?: run {
-            _serviceState.value = Pair(null, data.second)
-            unbind()
-            onServiceDisconnected?.invoke(data.second)
-            _bindingState.set(false)
-        }
-    }
-
-    fun bind() {
-        if (_bindingState.compareAndSet(false, true)) {
-            job?.cancel()
-            job = null
-            _serviceState.value = null
-            job = launch {
-                GlobalState.application.bindServiceFlow<IBinder>(intent).collect { handleBind(it) }
-            }
-        }
-    }
-
-    suspend inline fun <R> useService(
-        timeoutMillis: Long = 5000, crossinline block: (T) -> R
-    ): Result<R> {
-        return runCatching {
-            withTimeout(timeoutMillis) {
-                val state = serviceState.filterNotNull().first()
-                state.first?.let {
-                    block(it)
-                } ?: throw Exception(state.second)
-            }
-        }
-    }
-
-    fun unbind() {
-        if (_bindingState.compareAndSet(true, false)) {
-            job?.cancel()
-            job = null
-            _serviceState.value = null
-        }
-    }
-}

android/common/src/main/java/com/follow/clash/common/Utils.kt

@@ -1,14 +0,0 @@
-package com.follow.clash.common
-
-import kotlinx.coroutines.delay
-import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.flow
-
-
-fun tickerFlow(delayMillis: Long, initialDelayMillis: Long = delayMillis): Flow<Unit> = flow {
-    delay(initialDelayMillis)
-    while (true) {
-        emit(Unit)
-        delay(delayMillis)
-    }
-}

android/common/src/main/res/values/strings.xml

@@ -1,4 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <string name="FlClash">FlClash</string>
+    <string name="app_name">FlClash</string>
+    <string name="service_channel_name">FlClash Service</string>
 </resources>

android/core/build.gradle.kts

@@ -1,8 +1,13 @@
 import org.jetbrains.kotlin.gradle.dsl.JvmTarget
+import java.io.ByteArrayOutputStream
+import java.util.zip.ZipEntry
+import java.util.zip.ZipFile
+import java.util.zip.ZipInputStream
+import java.util.zip.ZipOutputStream
+import javax.inject.Inject
 
 plugins {
     id("com.android.library")
-    id("org.jetbrains.kotlin.android")
 }
 
 android {
@@ -12,35 +17,13 @@ android {
 
     defaultConfig {
         minSdk = libs.versions.minSdk.get().toInt()
-    }
-
-
-    sourceSets {
-        getByName("main") {
-            jniLibs.srcDirs("src/main/jniLibs")
-        }
-    }
-
-    externalNativeBuild {
-        cmake {
-            path("src/main/cpp/CMakeLists.txt")
-            version = "3.22.1"
-        }
+        consumerProguardFiles("consumer-rules.pro")
     }
 
     compileOptions {
         sourceCompatibility = JavaVersion.VERSION_17
         targetCompatibility = JavaVersion.VERSION_17
     }
-
-    buildTypes {
-        release {
-            proguardFiles(
-                getDefaultProguardFile("proguard-android-optimize.txt"),
-                "proguard-rules.pro"
-            )
-        }
-    }
 }
 
 kotlin {
@@ -49,33 +32,244 @@ kotlin {
     }
 }
 
+val gomobileTargetByPlatform =
+    linkedMapOf("android-arm" to "android/arm", "android-arm64" to "android/arm64", "android-x64" to "android/amd64")
+val gomobileTargets =
+    (rootProject.findProperty("target-platform") as String?)
+        ?.split(",")
+        ?.map { gomobileTargetByPlatform[it.trim()] ?: throw GradleException("No Core for Flutter target platform $it") }
+        ?: gomobileTargetByPlatform.values.toList()
 
-dependencies {
-    implementation(libs.annotation.jvm)
-}
+val isWindows = System.getProperty("os.name").startsWith("Windows")
 
-val copyNativeLibs by tasks.register<Copy>("copyNativeLibs") {
-    doFirst {
-        delete("src/main/jniLibs")
+// Gradle started from Android Studio sees the PATH of the GUI session, which leaves out Homebrew and the Go installer.
+val goExecutablePath =
+    providers.provider {
+        val name = if (isWindows) "go.exe" else "go"
+        val home = System.getProperty("user.home")
+        val searchPath =
+            System.getenv("PATH").orEmpty().split(File.pathSeparator) +
+                listOf("/opt/homebrew/bin", "/usr/local/bin", "/usr/local/go/bin", "$home/go/bin")
+        searchPath
+            .filter { it.isNotEmpty() }
+            .map { File(it, name) }
+            .firstOrNull { it.canExecute() }
+            ?.path
+            ?: throw GradleException("The Android Core is built with gomobile, which needs Go on PATH")
     }
-    from("../../libclash/android")
-    into("src/main/jniLibs")
 
-    doLast {
-        val includesDir = file("src/main/jniLibs/includes")
-        val targetDir = file("src/main/cpp/includes")
-        if (includesDir.exists()) {
-            copy {
-                from(includesDir)
-                into(targetDir)
+val goModule = rootProject.layout.projectDirectory.dir("../core")
+
+// gomobile names the library gojni, both as the file it builds and in go.Seq's System.loadLibrary, and has no option to change it.
+val coreLibraryName = "clash"
+
+val buildConfig =
+    providers.fileContents(rootProject.layout.projectDirectory.file("../build_config.yaml")).asText.map { text ->
+        text.lines()
+            .mapNotNull { Regex("""^(\w+):\s*(.*?)\s*$""").find(it)?.destructured }
+            .associate { (key, value) -> key to value.trim('"', '\'') }
+    }
+
+abstract class GomobileBind : DefaultTask() {
+    @get:Inject
+    abstract val execOperations: ExecOperations
+
+    @get:InputFiles
+    @get:PathSensitive(PathSensitivity.RELATIVE)
+    abstract val sources: ConfigurableFileCollection
+
+    @get:Internal
+    abstract val moduleDirectory: DirectoryProperty
+
+    @get:Internal
+    abstract val goExecutable: Property<String>
+
+    @get:Input
+    abstract val goVersion: Property<String>
+
+    @get:Input
+    abstract val targets: ListProperty<String>
+
+    @get:Input
+    abstract val androidApi: Property<Int>
+
+    @get:Input
+    abstract val tags: Property<String>
+
+    @get:Input
+    abstract val ldflags: Property<String>
+
+    @get:Internal
+    abstract val sdkDirectory: DirectoryProperty
+
+    @get:Internal
+    abstract val ndkDirectory: DirectoryProperty
+
+    @get:Input
+    abstract val ndkVersion: Property<String>
+
+    @get:Input
+    abstract val libraryName: Property<String>
+
+    @get:OutputFile
+    abstract val aar: RegularFileProperty
+
+    @get:OutputFile
+    abstract val classesJar: RegularFileProperty
+
+    @TaskAction
+    fun bind() {
+        val go = goExecutable.get()
+        val tools = temporaryDir.resolve("bin")
+        val executableSuffix = if (System.getProperty("os.name").startsWith("Windows")) ".exe" else ""
+        tools.mkdirs()
+        val path =
+            listOf(tools, File(System.getProperty("java.home"), "bin"), File(go).parentFile)
+                .joinToString(File.pathSeparator) { it.path } + File.pathSeparator + System.getenv("PATH").orEmpty()
+        execOperations.exec {
+            workingDir(moduleDirectory)
+            environment("PATH", path)
+            commandLine(go, "build", "-o", tools.path + File.separator, "golang.org/x/mobile/cmd/gomobile", "golang.org/x/mobile/cmd/gobind")
+        }
+        // gomobile links the library as the main package of a module it generates, whose go line is the toolchain's,
+        // so the GODEBUG defaults that the go line of core/go.mod sets for the desktop Core would not reach it on their own.
+        val godebug = ByteArrayOutputStream()
+        execOperations.exec {
+            workingDir(moduleDirectory)
+            environment("PATH", path)
+            commandLine(go, "list", "-f", "{{.DefaultGODEBUG}}", "./cmd/core")
+            standardOutput = godebug
+        }
+        execOperations.exec {
+            workingDir(moduleDirectory)
+            environment("PATH", path)
+            environment("ANDROID_HOME", sdkDirectory.get().asFile.path)
+            environment("ANDROID_NDK_HOME", ndkDirectory.get().asFile.path)
+            commandLine(
+                tools.resolve("gomobile$executableSuffix").path,
+                "bind",
+                "-target=${targets.get().joinToString(",")}",
+                "-androidapi=${androidApi.get()}",
+                "-javapkg=com.follow.clash.core",
+                "-tags=${tags.get()}",
+                "-ldflags=${ldflags.get()} -X=runtime.godebugDefault=${godebug.toString().trim()}",
+                "-o",
+                aar.get().asFile.path,
+                "./mobile",
+            )
+        }
+        ZipFile(aar.get().asFile).use { aarFile ->
+            ZipInputStream(aarFile.getInputStream(aarFile.getEntry("classes.jar"))).use { jar ->
+                ZipOutputStream(classesJar.get().asFile.outputStream()).use { out ->
+                    var seqPatched = false
+                    generateSequence { jar.nextEntry }.forEach { entry ->
+                        var bytes = jar.readBytes()
+                        if (entry.name == "go/Seq.class") {
+                            bytes = bytes.replaceUtf8Constant("gojni", libraryName.get())
+                            seqPatched = true
+                        }
+                        out.putNextEntry(ZipEntry(entry.name).apply { time = entry.time })
+                        out.write(bytes)
+                    }
+                    if (!seqPatched) throw GradleException("gomobile's classes.jar has no go/Seq.class to load lib${libraryName.get()}.so")
+                }
             }
-            delete(includesDir)
         }
     }
+
+    private fun ByteArray.replaceUtf8Constant(old: String, new: String): ByteArray {
+        fun constant(value: String) = value.toByteArray().let { byteArrayOf(1, (it.size shr 8).toByte(), it.size.toByte()) + it }
+        val target = constant(old)
+        val matches = (0..size - target.size).filter { start -> target.indices.all { this[start + it] == target[it] } }
+        if (matches.size != 1) throw GradleException("Expected one \"$old\" constant in go/Seq.class, found ${matches.size}")
+        val start = matches.single()
+        return copyOfRange(0, start) + constant(new) + copyOfRange(start + target.size, size)
+    }
 }
 
-afterEvaluate {
-    tasks.named("preBuild") {
-        dependsOn(copyNativeLibs)
+abstract class UnpackJniLibs : DefaultTask() {
+    @get:Inject
+    abstract val archiveOperations: ArchiveOperations
+
+    @get:Inject
+    abstract val fileSystemOperations: FileSystemOperations
+
+    @get:InputFile
+    @get:PathSensitive(PathSensitivity.NONE)
+    abstract val aar: RegularFileProperty
+
+    @get:Input
+    abstract val libraryName: Property<String>
+
+    @get:OutputDirectory
+    abstract val outputDirectory: DirectoryProperty
+
+    @TaskAction
+    fun unpack() {
+        var renamed = 0
+        fileSystemOperations.sync {
+            from(archiveOperations.zipTree(aar)) {
+                include("jni/**")
+                eachFile {
+                    path = path.removePrefix("jni/")
+                    if (name == "libgojni.so") {
+                        name = "lib${libraryName.get()}.so"
+                        renamed++
+                    }
+                }
+                includeEmptyDirs = false
+            }
+            into(outputDirectory)
+        }
+        if (renamed == 0) throw GradleException("gomobile's AAR has no libgojni.so to rename")
     }
-}
+}
+
+val bindCore =
+    tasks.register<GomobileBind>("bindCore") {
+        sources.from(
+            fileTree(goModule) {
+                exclude("**/*_test.go", "**/testdata/**", "cmd/**", "Clash.Meta/.github/**")
+            },
+        )
+        moduleDirectory.set(goModule)
+        goExecutable.set(goExecutablePath)
+        goVersion.set(
+            goExecutablePath
+                .flatMap { go -> providers.exec { commandLine(go, "env", "GOVERSION") }.standardOutput.asText }
+                .map { it.trim() },
+        )
+        targets.set(gomobileTargets)
+        androidApi.set(libs.versions.minSdk.get().toInt())
+        tags.set(buildConfig.map { it["tags"].orEmpty() })
+        ldflags.set(
+            buildConfig.map { config ->
+                val flags = config["go_ldflags"].orEmpty().split(" ").filter { it.isNotEmpty() }
+                val version = config["core_version"].orEmpty()
+                (flags + listOfNotNull(version.takeIf { it.isNotEmpty() }?.let { "-X=github.com/metacubex/mihomo/constant.Version=$it" }))
+                    .joinToString(" ")
+            },
+        )
+        sdkDirectory.set(androidComponents.sdkComponents.sdkDirectory)
+        ndkDirectory.set(androidComponents.sdkComponents.ndkDirectory)
+        ndkVersion.set(libs.versions.ndkVersion)
+        libraryName.set(coreLibraryName)
+        aar.set(layout.buildDirectory.file("gomobile/core.aar"))
+        classesJar.set(layout.buildDirectory.file("gomobile/classes.jar"))
+    }
+
+// A library cannot bundle a local AAR into its own, so the gomobile AAR reaches AGP as a classes jar and generated jniLibs.
+androidComponents {
+    onVariants { variant ->
+        val unpack =
+            tasks.register<UnpackJniLibs>("unpack${variant.name.replaceFirstChar { it.uppercase() }}CoreJniLibs") {
+                aar.set(bindCore.flatMap { it.aar })
+                libraryName.set(coreLibraryName)
+            }
+        variant.sources.jniLibs?.addGeneratedSourceDirectory(unpack, UnpackJniLibs::outputDirectory)
+    }
+}
+
+dependencies {
+    implementation(files(bindCore.flatMap { it.classesJar }))
+}

android/core/consumer-rules.pro

@@ -0,0 +1,2 @@
+-keep class go.** { *; }
+-keep class com.follow.clash.core.mobile.** { *; }

android/core/src/main/cpp/CMakeLists.txt

@@ -1,51 +0,0 @@
-cmake_minimum_required(VERSION 3.22.1)
-
-project("core")
-
-message("CMAKE_SOURCE_DIR ${CMAKE_SOURCE_DIR}")
-
-message("CMAKE_BUILD_TYPE ${CMAKE_BUILD_TYPE}")
-
-
-if (NOT "${CMAKE_BUILD_TYPE}" STREQUAL "Debug")
-    #    set(CMAKE_BUILD_TYPE Release CACHE STRING "Build type" FORCE)
-    add_compile_options(-O3)
-
-    add_compile_options(-flto)
-
-    add_compile_options(-g0)
-
-    add_compile_options(-ffunction-sections -fdata-sections)
-
-    add_compile_options(-fno-exceptions -fno-rtti)
-
-    add_link_options(
-            -flto
-            -Wl,--gc-sections
-            -Wl,--strip-all
-            -Wl,--exclude-libs=ALL
-    )
-
-    add_compile_options(-fvisibility=hidden -fvisibility-inlines-hidden)
-endif ()
-
-set(LIB_CLASH_PATH "${CMAKE_SOURCE_DIR}/../jniLibs/${ANDROID_ABI}/libclash.so")
-
-message("LIB_CLASH_PATH ${LIB_CLASH_PATH}")
-if (EXISTS ${LIB_CLASH_PATH})
-    message("Found libclash.so for ABI ${ANDROID_ABI}")
-    add_compile_definitions(LIBCLASH)
-    include_directories(${CMAKE_SOURCE_DIR}/../cpp/includes/${ANDROID_ABI})
-    link_directories(${CMAKE_SOURCE_DIR}/../jniLibs/${ANDROID_ABI})
-    add_library(${CMAKE_PROJECT_NAME} SHARED
-            jni_helper.cpp
-            core.cpp)
-    target_link_libraries(${CMAKE_PROJECT_NAME}
-            clash)
-else ()
-    message("Not found libclash.so for ABI ${ANDROID_ABI}")
-    add_library(${CMAKE_PROJECT_NAME} SHARED
-            jni_helper.cpp
-            core.cpp)
-    target_link_libraries(${CMAKE_PROJECT_NAME})
-endif ()

android/core/src/main/cpp/core.cpp

@@ -1,190 +0,0 @@
-#include <jni.h>
-
-#ifdef LIBCLASH
-
-#include "jni_helper.h"
-#include "libclash.h"
-#include "bride.h"
-
-extern "C"
-JNIEXPORT void JNICALL
-Java_com_follow_clash_core_Core_startTun(JNIEnv *env, jobject thiz, jint fd, jobject cb,
-                                         jstring stack, jstring address, jstring dns) {
-    const auto interface = new_global(cb);
-    startTUN(interface, fd, get_string(stack), get_string(address), get_string(dns));
-}
-
-extern "C"
-JNIEXPORT void JNICALL
-Java_com_follow_clash_core_Core_stopTun(JNIEnv *env, jobject thiz) {
-    stopTun();
-}
-
-extern "C"
-JNIEXPORT void JNICALL
-Java_com_follow_clash_core_Core_forceGC(JNIEnv *env, jobject thiz) {
-    forceGC();
-}
-
-extern "C"
-JNIEXPORT void JNICALL
-Java_com_follow_clash_core_Core_updateDNS(JNIEnv *env, jobject thiz, jstring dns) {
-    updateDns(get_string(dns));
-}
-
-extern "C"
-JNIEXPORT void JNICALL
-Java_com_follow_clash_core_Core_invokeAction(JNIEnv *env, jobject thiz, jstring data, jobject cb) {
-    const auto interface = new_global(cb);
-    invokeAction(interface, get_string(data));
-}
-
-extern "C"
-JNIEXPORT void JNICALL
-Java_com_follow_clash_core_Core_setMessageCallback(JNIEnv *env, jobject thiz, jobject cb) {
-    const auto interface = new_global(cb);
-    setMessageCallback(interface);
-}
-
-extern "C"
-JNIEXPORT jstring JNICALL
-Java_com_follow_clash_core_Core_getTraffic(JNIEnv *env, jobject thiz,
-                                           const jboolean only_statistics_proxy) {
-    return new_string(getTraffic(only_statistics_proxy));
-}
-
-extern "C"
-JNIEXPORT jstring JNICALL
-Java_com_follow_clash_core_Core_getTotalTraffic(JNIEnv *env, jobject thiz,
-                                                const jboolean only_statistics_proxy) {
-    return new_string(getTotalTraffic(only_statistics_proxy));
-}
-
-extern "C"
-JNIEXPORT void JNICALL
-Java_com_follow_clash_core_Core_suspended(JNIEnv *env, jobject thiz, jboolean suspended) {
-    suspend(suspended);
-}
-
-
-static jmethodID m_tun_interface_protect;
-static jmethodID m_tun_interface_resolve_process;
-static jmethodID m_invoke_interface_result;
-
-
-static void release_jni_object_impl(void *obj) {
-    ATTACH_JNI();
-    del_global(static_cast<jobject>(obj));
-}
-
-static void free_string_impl(char *str) {
-    free(str);
-}
-
-static void call_tun_interface_protect_impl(void *tun_interface, const int fd) {
-    ATTACH_JNI();
-    env->CallVoidMethod(static_cast<jobject>(tun_interface),
-                        m_tun_interface_protect,
-                        fd);
-}
-
-static char *
-call_tun_interface_resolve_process_impl(void *tun_interface, const int protocol,
-                                        const char *source,
-                                        const char *target,
-                                        const int uid) {
-    ATTACH_JNI();
-    const auto packageName = reinterpret_cast<jstring>(env->CallObjectMethod(
-        static_cast<jobject>(tun_interface),
-        m_tun_interface_resolve_process,
-        protocol,
-        new_string(source),
-        new_string(target),
-        uid));
-    return get_string(packageName);
-}
-
-static void call_invoke_interface_result_impl(void *invoke_interface, const char *data) {
-    ATTACH_JNI();
-    env->CallVoidMethod(static_cast<jobject>(invoke_interface),
-                        m_invoke_interface_result,
-                        new_string(data));
-}
-
-extern "C"
-JNIEXPORT jint JNICALL
-JNI_OnLoad(JavaVM *vm, void *) {
-    JNIEnv *env = nullptr;
-    if (vm->GetEnv(reinterpret_cast<void **>(&env), JNI_VERSION_1_6) != JNI_OK) {
-        return JNI_ERR;
-    }
-
-    initialize_jni(vm, env);
-
-    const auto c_tun_interface = find_class("com/follow/clash/core/TunInterface");
-
-    const auto c_invoke_interface = find_class("com/follow/clash/core/InvokeInterface");
-
-    m_tun_interface_protect = find_method(c_tun_interface, "protect", "(I)V");
-    m_tun_interface_resolve_process = find_method(c_tun_interface, "resolverProcess",
-                                                  "(ILjava/lang/String;Ljava/lang/String;I)Ljava/lang/String;");
-    m_invoke_interface_result = find_method(c_invoke_interface, "onResult",
-                                            "(Ljava/lang/String;)V");
-
-
-    protect_func = &call_tun_interface_protect_impl;
-    resolve_process_func = &call_tun_interface_resolve_process_impl;
-    result_func = &call_invoke_interface_result_impl;
-    release_object_func = &release_jni_object_impl;
-    free_string_func = &free_string_impl;
-
-    return JNI_VERSION_1_6;
-}
-#else
-extern "C"
-JNIEXPORT void JNICALL
-Java_com_follow_clash_core_Core_startTun(JNIEnv *env, jobject thiz, jint fd, jobject cb,
-                                         jstring stack, jstring address, jstring dns) {
-}
-
-extern "C"
-JNIEXPORT void JNICALL
-Java_com_follow_clash_core_Core_stopTun(JNIEnv *env, jobject thiz) {
-}
-
-extern "C"
-JNIEXPORT void JNICALL
-Java_com_follow_clash_core_Core_invokeAction(JNIEnv *env, jobject thiz, jstring data, jobject cb) {
-}
-
-extern "C"
-JNIEXPORT void JNICALL
-Java_com_follow_clash_core_Core_forceGC(JNIEnv *env, jobject thiz) {
-}
-
-extern "C"
-JNIEXPORT void JNICALL
-Java_com_follow_clash_core_Core_updateDNS(JNIEnv *env, jobject thiz, jstring dns) {
-}
-
-extern "C"
-JNIEXPORT void JNICALL
-Java_com_follow_clash_core_Core_setMessageCallback(JNIEnv *env, jobject thiz, jobject cb) {
-}
-
-extern "C"
-JNIEXPORT jstring JNICALL
-Java_com_follow_clash_core_Core_getTraffic(JNIEnv *env, jobject thiz,
-                                           const jboolean only_statistics_proxy) {
-}
-extern "C"
-JNIEXPORT jstring JNICALL
-Java_com_follow_clash_core_Core_getTotalTraffic(JNIEnv *env, jobject thiz,
-                                                const jboolean only_statistics_proxy) {
-}
-
-extern "C"
-JNIEXPORT void JNICALL
-Java_com_follow_clash_core_Core_suspended(JNIEnv *env, jobject thiz, jboolean suspended) {
-}
-#endif