refactor: migrate audio metadata tagging from ts to rust

- Add id3 and metaflac crates for native audio tagging
- Create tagger.rs with separate tag_mp3() and tag_flac() functions
- Implement tag_audio_file Tauri command for unified tagging interface
- Support full metadata: title, artist, album, track#, ISRC, BPM, lyrics, cover art
- Create TypeScript wrapper (tagger.ts) for calling Rust backend
- Update downloader.ts to use Rust tagging for both MP3 and FLAC
- Remove browser-id3-writer dependency (no browser FLAC support)
- Inline lyrics parsing in addToQueue.ts (no longer needed in tagger)

bun.lock

@@ -13,7 +13,6 @@
         "@tauri-apps/plugin-sql": "^2.3.0",
         "@tauri-apps/plugin-store": "~2",
         "blowfish-node": "^1.1.4",
-        "browser-id3-writer": "^6.3.1",
         "music-metadata": "^11.9.0",
         "uuid": "^13.0.0",
       },
@@ -208,8 +207,6 @@
 
     "blowfish-node": ["blowfish-node@1.1.4", "", {}, "sha512-Iahpxc/cutT0M0tgwV5goklB+EzDuiYLgwJg050AmUG2jSIOpViWMLdnRgBxzZuNfswAgHSUiIdvmNdgL2v6DA=="],
 
-    "browser-id3-writer": ["browser-id3-writer@6.3.1", "", {}, "sha512-sRA4Uq9Q3NsmXiVpLvIDxzomtgCdbw6SY85A6fw7dUQGRVoOBg1/buFv6spPhYiSo6FlVtN5OJQTvvhbmfx9rQ=="],
-
     "chokidar": ["chokidar@4.0.3", "", { "dependencies": { "readdirp": "^4.0.1" } }, "sha512-Qgzu8kfBvo+cA4962jnP1KkS6Dop5NS6g7R5LFYJr4b8Ub94PPQXUksCw9PvXoeXPRRddRNC5C1JQUR2SMGtnA=="],
 
     "clsx": ["clsx@2.1.1", "", {}, "sha512-eYm0QWBtUrBWZWG0d386OGAw16Z995PiOVo2B7bjWSbHedGl5e0ZWaq65kOGgUSNesEIDkB9ISbTg/JK9dhCZA=="],