feat: v1.26.0 — Bulk Select, Song Info, Favorite Button, Recently Played

### Added
- Favorite/Star button in player bar (requested by @halfkey)
- Bulk multi-select for album tracklist and playlist detail (add to playlist, remove from playlist)
- Song Info modal via right-click context menu (metadata: format, bitrate, sample rate, bit depth, channels, file size, path, replay gain)
- Recently Played section on Home page
- "Show activity in Now Playing" opt-in toggle in Settings → Behavior

### Fixed
- Queue cover art not updating on track change (useCachedUrl/CachedImage reset on cacheKey change)
- FullscreenPlayer background flickering (FsBg preloads image before layer transition)
- Playlist card delete confirmation visual (size expansion + pulse animation)
- Gruvbox Light Soft: back button and badge invisible against light background

### Changed
- buildStreamUrl: removed unused suffix parameter

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/App.tsx

@@ -31,6 +31,7 @@ import PlaylistDetail from './pages/PlaylistDetail';
 import NowPlayingPage from './pages/NowPlaying';
 import FullscreenPlayer from './components/FullscreenPlayer';
 import ContextMenu from './components/ContextMenu';
+import SongInfoModal from './components/SongInfoModal';
 import DownloadFolderModal from './components/DownloadFolderModal';
 import { DragDropProvider } from './contexts/DragDropContext';
 import TooltipPortal from './components/TooltipPortal';
@@ -272,6 +273,7 @@ function AppShell() {
         <FullscreenPlayer onClose={toggleFullscreen} />
       )}
       <ContextMenu />
+      <SongInfoModal />
       <DownloadFolderModal />
       <TooltipPortal />
       {changelogModalOpen && <ChangelogModal onClose={() => setChangelogModalOpen(false)} />}