Release flow (make build -> build/bin/AniTrack -> tarball) is unchanged; only the toolchain moves to v3.
- Wails CLI: v2@v2.15.0 -> wails3@v3.0.0-beta.20 (binary path, cache key, and install pin updated together).
- System deps: libgtk-3-dev/libwebkit2gtk-4.1-dev -> libgtk-4-dev/libwebkitgtk-6.0-dev for the v3 default GTK4/WebKit 6.0 stack.
- Unchanged and still valid: Go/npm/go-build/Wails-CLI caches (npm cache now resolves since the frontend lockfile is committed), environment.go generation, version guard, idempotent release+asset upload.