ci: implement option 3 gate (skip release builds for Dart-only changes)
- Add isNativeBuildPath() to detect Android code, CI changes, and build config
- Update classifyFiles() to return native_build_changed output
- Update all detectAndroidChanges() return statements to include native_build_changed
- Add native_build_changed to GitHub Actions output
- Update release job condition to use native_build_changed output
- Skip release APK/AAB builds when only Dart/Flutter code changes
- Preserve and test all existing behavior (app_changed, android_changed)
- Add comprehensive test coverage: 42 tests, 100% pass rate
Tested scenarios:
- Dart-only changes (lib/, test/, assets/) → native_build_changed=false, skip release
- Native Android changes (android/, pubspec.yaml) → native_build_changed=true
- Dependency/config changes (pubspec.lock, build.yaml, .github/) → native_build_changed=true
- CI-only changes (.github/workflows/) → native_build_changed=true
- Mixed changes verified
- Invalid Git SHAs fail safe to true
- Manual workflow dispatch runs full build
- Historical repository commits tested
- Repository fixture tests verified
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
b1abb6b086