feat(stats): add library entry deletion and app-wide delete progress (#174)

docs-site/anilist-integration.md

@@ -69,6 +69,8 @@ SubMiner fetches cover art from AniList for display in the stats dashboard. When
 
 A no-match result is cached for 5 minutes before SubMiner retries, preventing repeated API calls for unrecognized media.
 
+If the automatic match is wrong, use **Change AniList Entry** on a title in the stats Library. Relinking rewrites the cached art for every episode of that title, and both the detail view and the Library grid pick up the new cover right away: the grid refetches after a relink, and cover responses carry an ETag and are revalidated on each request instead of being cached for a day.
+
 ## Rate Limiting
 
 All AniList API calls go through a shared rate limiter that enforces a sliding window of 20 requests per minute. The limiter also reads AniList's `X-RateLimit-Remaining` and `Retry-After` response headers and pauses requests when the server signals throttling. This applies to both episode tracking and cover art fetching.

docs-site/immersion-tracking.md

@@ -57,6 +57,8 @@ Jellyfin stream URLs are normalized to stable item links before stats titles are
 
 When YouTube channel metadata is available, the Library tab groups videos by creator/channel and treats each tracked video as an episode-like entry inside that channel section.
 
+Open a title and use **Delete Entry** in its header to remove a mistakenly tracked show outright. This deletes every episode of that title along with their sessions, subtitle lines, rollups and cover art, drops the words and kanji that were only seen there, and removes the card from the Library grid. Individual episodes and sessions can still be deleted on their own from the episode list and session rows. Entry deletion is refused while that title is the one currently playing.
+
 ![Stats Library](/screenshots/stats-library.png)
 
 #### Trends