feat(genius): load song metadata, lyrics, and artwork

Search hits omit album covers and artist images. The worker now reads the full song and artist, stores the description, and leaves Genius image URLs unchanged on mobile.

Co-authored-by: Cursor <cursoragent@cursor.com>

packages/i18n/locales/en/common.json

@@ -1,4 +1,12 @@
 {
+  "genius": {
+    "description": "Lyrics, annotations and missing artwork from Genius. Local artwork takes priority.",
+    "loading": "Loading…", "disabled": "Not configured", "paused": "Paused", "cooldown": "Waiting after Genius rate limit", "running": "Processing", "waiting": "Waiting for new tracks",
+    "configure": "Add GENIUS_ACCESS_TOKEN to deploy/.env and recreate the API container.",
+    "total": "Total tracks", "pending": "Queued", "matched": "Matched on Genius", "lyrics": "Lyrics", "annotations": "With annotations", "images": "With artwork", "unmatched": "No exact match", "errors": "Errors / incomplete data",
+    "last_error": "Last error", "token_error": "Genius rejected the token. Check it and restart the API.", "access_error": "Genius restricted access. Processing is paused.", "no_lyrics": "Lyrics are currently unavailable.", "request_error": "Some data could not be retrieved. A retry is scheduled automatically.", "resume_at": "Retry no earlier than",
+    "start": "Resume", "pause": "Pause", "retry": "Retry errors and unmatched", "pending_text": "This track is waiting for Genius processing.", "about": "About the song", "explanations": "Song annotations", "verified": "Verified on Genius"
+  },
   "app": {
     "name": "pipu",
     "tagline": "Your music from your own server"