Add Cantonese language model support

Ariver

2026-07-02 0ffbf1935c9d091cce22a5583275ac0902f7a693

 CODEGRAPH.md

@@ -3,7 +3,7 @@
## Project

- Product: Wails v3 / Go desktop dictation app.
- Current branch purpose: Windows technical preview based on `v2.1.38-build20260629.2014-diagnostic`.
- Current branch purpose: Round 6 Cantonese language version real-user test package based on `v2.2.0-build20260702.0303`.
- Protected macOS behavior: existing macOS App Store / local DMG build lines are not changed by this branch.

## Core Entrypoints
@@ -11,6 +11,17 @@
- `privatevoice.src/main.go`: process startup, data migration, logger, single-instance guard.
- `privatevoice.src/app.go`: Wails app wiring, settings window, tray, recorder, hotkey loop, ASR init, paste orchestration.
- `privatevoice.src/embed.go`: embeds frontend assets and app/tray icons.

## Language And Model Registry

- `privatevoice.src/internal/model/profile.go`: model and language IDs, model profile shape, install status types.
- `privatevoice.src/internal/model/registry.go`: language profile order, model profiles, language profiles, and normalization.
- `privatevoice.src/internal/modelselection/selection.go`: resolves current language and model, including manual-model fallback.
- Round 6 Cantonese path:
  - Language ID: `yue-HK`, displayed as `粤语`.
  - Default model: `sensevoice-yue-2025-09-09`.
  - Backend: SenseVoice with `LanguageParam="yue"`.
  - The Cantonese language profile intentionally has no upgrade models, so Qwen3-ASR and X-ASR are not shown as Cantonese-specific options.

## Platform Modules

@@ -26,6 +37,8 @@
- ASR engine:
  - macOS: `privatevoice.src/internal/engine/engine_darwin.go`
  - Windows: `privatevoice.src/internal/engine/engine_windows.go`
  - Linux: `privatevoice.src/internal/engine/engine_linux.go`
  - SenseVoice profiles may set `Profile.LanguageParam`; Cantonese uses `yue`.
- Overlay:
  - macOS: `privatevoice.src/internal/overlay/overlay_darwin.go`
  - Windows: `privatevoice.src/internal/overlay/overlay_windows.go`
@@ -35,13 +48,28 @@
- Windows preview supports `SenseVoice` only.
- Non-SenseVoice models remain visible in settings but are disabled through `model.IsModelSupportedInCurrentBuild`.
- Windows unsupported reason: `windows_preview_unsupported`.
- Windows overlay remains native Win32/GDI+, with a larger translucent spectrum-style capsule indicator for recording states.
- Build script: `privatevoice.src/scripts/build-windows-preview.sh`.
- Evidence verifier: `privatevoice.src/scripts/verify-windows-qa-evidence.sh`.
- Runtime package includes:
  - `PrivateVoice Dictation.exe`
  - `onnxruntime.dll`
  - `sherpa-onnx-c-api.dll`
  - `sherpa-onnx-cxx-api.dll`
  - `RUN-WINDOWS-QA.cmd`
  - `QA-WINDOWS-PREVIEW.ps1`
  - `README-WINDOWS-PREVIEW.txt`

## macOS Local Package Scope

- Local DMG script: `privatevoice.src/scripts/build-local-macos.sh`.
- Universal DMG script: `privatevoice.src/scripts/build-local-macos-universal.sh`.
- Local macOS package set for this branch:
  - `arm64` DMG for Apple Silicon.
  - `x86_64` DMG for Intel Mac.
  - `universal` DMG for Intel + Apple Silicon.
- Mainline macOS local packages keep `LSMinimumSystemVersion=14.0` and the default Qwen3-capable dependency line.
- Monterey-compatible packages remain a separate build line through `privatevoice.src/scripts/build-local-macos-monterey.sh`.

## Standard Verification Commands

@@ -52,10 +80,16 @@
go test ./...
GOOS=windows GOARCH=amd64 CGO_ENABLED=1 CC=x86_64-w64-mingw32-gcc CXX=x86_64-w64-mingw32-g++ go test -exec=/usr/bin/true ./...
./scripts/build-windows-preview.sh
./scripts/build-local-macos.sh arm64
./scripts/build-local-macos.sh x86_64
./scripts/build-local-macos-universal.sh
./scripts/verify-windows-qa-evidence.sh /path/to/qa-evidence-YYYYMMDD-HHMMSS.zip
```

## Known Gaps

- Windows runtime QA must still be performed on Windows 10/11 hardware.
- Run `RUN-WINDOWS-QA.cmd` from the extracted preview package to collect WebView2/audio preflight, startup, engine, recording, recognition, paste, and Notepad target text evidence.
- After evidence is returned, run `verify-windows-qa-evidence.sh` and require `WINDOWS_QA_EVIDENCE_PASS` before claiming the goal complete.
- The Windows preview zip is unsigned and not an installer.
- SmartScreen / Defender prompts are expected for local testing.