Enable strict-casts, strict-inference, and strict-raw-types in
analysis_options.yaml. Add custom_lint with riverpod_lint. Fix all
resulting type warnings with explicit type parameters and safer casts.
Also improves APK update checker to detect device ABIs for correct
variant selection and fixes Deezer artist name parsing edge case.
- Add responsive scaling across album, artist, playlist, downloaded album, local album, queue, setup, and tutorial screens to prevent overflow on smaller devices
- Add new Storage & Cache management page (Settings > Storage & Cache) with per-category clear and cleanup actions
- Extract normalizedHeaderTopPadding utility for consistent app bar padding
- Improve home search Recent Access behavior: show when focused with empty input, hide stale results during active recent mode
- Add excluded-downloaded-count tracking to local library scan stats
- Add recentEmpty and recentShowAllDownloads l10n keys (EN + ID)
- Add full cache management l10n keys (EN + ID)
- Fix about_page indentation and formatting consistency
- Fix appearance_settings_page formatting
- Fix downloaded_album_screen and local_album_screen formatting and responsive sizing
- SAF Storage Access Framework for Android 10+ downloads
- Redesigned Setup/Tutorial screens with Material 3 Expressive
- Library scan hero card now shows real-time scanned count
- Library folder picker uses SAF (no MANAGE_EXTERNAL_STORAGE needed)
- SAF migration prompt for users updating from pre-SAF versions
- Home feed caching, donate page, per-app language support
- Merged 3.6.0-beta.1 changelog entries into 3.5.0