feat: add personal playlists and shareable track links

EOF

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

packages/i18n/locales/en/errors.json

@@ -93,5 +93,12 @@
     "size_mismatch": "The file size does not match the declared one",
     "hash_mismatch": "The file was corrupted in transit (SHA-256 mismatch)",
     "import_failed": "Could not write the file to the storage"
+  },
+  "playlist": {
+    "not_found": "Playlist not found",
+    "invalid_name": "Enter a name between 1 and 120 characters",
+    "invalid_tracks": "Tracks must be unique and exist in the library",
+    "too_large": "Maximum 2000 tracks and 2000 description characters",
+    "conflict": "This playlist changed on another device. Close the editor and try again with the refreshed data."
   }
 }