feat(database): shape the library like files, and shrink the catalog

Plans 013 and 014, the album page that prompted them, and the smaller
fixes they turned up. Changelog, largest first.

## The local library is shaped like files, not like MusicBrainz

`audio_files` carries its own tags and points at `albums` and
`artists`; `file_genres` is the one real many-to-many. `recordings`,
`release_group_recordings`, `artist_credit`, `artist_credit_artist`,
`recording_genres`, `release_groups` and `release_to_rg` are gone from
the local side, and with them a six-way join in every read, a
`MIN(release_group_id)` subquery in eleven queries and a
first-credited-artist subquery in nine. Measured on a real 25,966-file
library, every many-to-many that model expressed was 1:1 in the data.

- Ownership is a file. `GetFilePathsByRecordingMBIDs`,
  `LibraryMBIDIndex.CheckMBIDs`, `collectLibraryEntities` and
  `pruneStaleLocalCrossReferences` all join `audio_files`, so the 812
  orphaned recordings, 216 release groups and 260 artists that library
  carried are now structurally impossible.
- One projection: every track query selects from the `track_metadata`
  view, one row type, one mapper. Nine hand-rolled copies had drifted
  far enough to report different years on different screens.
- `library_id = 0` means every library, so each list query exists once
  instead of scoped and unscoped with a branch at every call site.
- No migration chain. `sql/schemas/` is the one description of the
  shape; `sql/migrations/`, `applyMigrations` and `schema_migrations`
  are squashed away, along with the drift between them that had sqlc
  generating against a stale schema.
- `database.InsertTestTrack` is the one test seeder; twenty test files
  had been assembling the old FK chain each in its own order.

## The catalog stores its ids as bytes

`explore_index`'s three 36-char MBID columns and its entity-type text
are 16 raw bytes and a small integer. The table and its six indexes go
780 MB to 405 MB on a real 2,052,200-row catalog, which is why a fresh
install is ~0.6 GB rather than ~1.0 GB.

- `backend/explore/mbid.go` is the only place the encoding is known;
  everything above it speaks dashed strings.
- `CHECK(length(mbid) = 16)` makes a stringly write fail at the insert
  rather than silently returning no rows, since SQLite does not coerce
  between TEXT and BLOB.
- The importer asks the artifact what encoding it carries and converts
  on the way in, so the artifact already published keeps working and no
  format bump is needed.
- `indexRowColumns`/`scanIndexRow` replace four copies of a 22-column
  list, and `TestStoredEncodingRoundTrips` sweeps every read path.

## An album page that says how much of the album is yours

- One question, asked once: is there a file. `filePaths` is filled by a
  single batched lookup when the tracklist settles, and the badge, the
  Play count, the dimmed rows and every menu item read it — replacing
  four claims of decreasing confidence that could show a green tick on
  an album whose every action did nothing.
- Play, Play 7 of 12, or no play button at all.
- `total_tracks` on `explore_index` (~2 bytes over 400,677 release
  groups) and on `audio_files` from tags that have always carried it:
  a complete MBID-matched album now makes no catalog call at all, where
  it used to spend the most expensive request the app makes.
- A merged cluster shows the running order the most releases agree on,
  and the version list marks the release you own rather than standing a
  synthetic entry in for it.
- `AlbumReleasesFailed`: a slow fetch is no longer reported as a failed
  one by a 12-second timer.
- Rows not in the library are dimmed in place (with `aria-disabled`)
  instead of the owned ones wearing a green tick and a legend.

## Caches and cover art get ceilings

- Only the three tiers of a cover are stored; the full-resolution copy
  nothing rendered was 1,134 MB of a 1.4 GB covers directory.
- One artist portrait is downloaded and the rest are remembered as
  URLs — 4.1 GB of a 5.3 GB cache was candidates no code path reads.
- `browsedArtBudget` and `httpCacheBudget` bound what an age cannot:
  the same install held art for 5,770 artists in a 1,301-artist
  library.
- `OrphanedArtistImagesJob` joined a bare MBID onto a sharded
  directory, so it deleted the rows that were the only record of the
  files it left behind. `explore.ArtistImageDir` is that layout's one
  definition now.

## The autotag queue asks whether there is work

`tagging_items` was a row per album folder, not a queue, and no query
read the `tag_status` column that held the answer. The four queue
queries ask the files, which matters most where it is least visible:
`startPrefetch` was scoring every album in a tagged library against
MusicBrainz.

## Phantom playlist tracks resolve in place

An M3U8 imported before its files leaves phantom rows; they now match
by path and fall back to position, keep their place in the playlist
when resolved, and pair best-first so two phantoms cannot claim the
same file.

## Playing a track plays the list it is in

Double-click, and Play on a single row's menu, queue the list as
displayed with `startIndex` on that row — the album page and the track
list used to queue one track and discard the album around it. A
multi-row selection still plays exactly itself.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AfVYUVExXsx1nSWrXN8mAh

frontend/bindings/yellowjacket/backend/autotagservice/service.ts

@@ -11,10 +11,6 @@
 // @ts-ignore: Unused imports
 import { Call as $Call, CancellablePromise as $CancellablePromise } from "@wailsio/runtime";
 
-// eslint-disable-next-line @typescript-eslint/ban-ts-comment
-// @ts-ignore: Unused imports
-import * as jobs$0 from "../jobs/models.js";
-
 // eslint-disable-next-line @typescript-eslint/ban-ts-comment
 // @ts-ignore: Unused imports
 import * as $models from "./models.js";
@@ -197,21 +193,6 @@ export function SelectSearchCandidate(groupKey: string, kind: string, mbid: stri
     return $Call.ByID(2540832563, groupKey, kind, mbid);
 }
 
-/**
- * SetJobRegistry wires the background job registry so an apply reports
- * progress and offers a cancel like every other long-running operation.
- * 
- * Before this, apply was a bare goroutine whose progress lived in a
- * component field that navigation discarded, with no cancel and no
- * record of where it stopped (errors.C3). Everything routed through the
- * registry gets progress, cancel and the global indicator for free; the
- * three subsystems that lacked them were the three that were not
- * registered.
- */
-export function SetJobRegistry(reg: jobs$0.Registry | null): $CancellablePromise<void> {
-    return $Call.ByID(3755409662, reg);
-}
-
 /**
  * Skip marks the current group as skipped — it stays in the
  * queue but renders in the "Skipped" section at the bottom of

frontend/bindings/yellowjacket/backend/download/index.ts

@@ -29,7 +29,6 @@ export type {
     Field,
     MatchScore,
     QualityScore,
-    Reconciler,
     Request,
     RequestInput,
     SearchRequest,

frontend/bindings/yellowjacket/backend/download/models.ts

@@ -498,12 +498,6 @@ export interface QualityScore {
     "mixed": boolean;
 }
 
-/**
- * Reconciler works the request list.
- */
-export interface Reconciler {
-}
-
 /**
  * Request is one row of the durable request list.
  */

frontend/bindings/yellowjacket/backend/download/service.ts

@@ -163,15 +163,6 @@ export function SetPreferences(prefs: $models.AutoDownloadPrefs): $CancellablePr
     return $Call.ByID(3789717356, prefs);
 }
 
-/**
- * SetReconciler wires the request-list loop.  Optional: without it the
- * request list still stores and lists requests, it just never acts on
- * them.
- */
-export function SetReconciler(r: $models.Reconciler | null): $CancellablePromise<void> {
-    return $Call.ByID(2390832784, r);
-}
-
 /**
  * StartDownload searches for a release and either auto-picks a clear
  * winner or returns ranked candidates for the user to choose from.

frontend/bindings/yellowjacket/backend/explore/index.ts

@@ -23,8 +23,6 @@ export type {
     MBReleaseGroup,
     MBSearchResult,
     MBTrack,
-    MusicBrainzClient,
-    RateLimiter,
     Shelf,
     ShelfPage,
     ThumbnailRequest,

frontend/bindings/yellowjacket/backend/explore/models.ts

@@ -86,7 +86,7 @@ export interface LBTopReleaseGroup {
  * into the camelCase shape the frontend consumes.
  */
 export interface LyricsResult {
-    "recordingId": number;
+    "audioFileId": number;
     "filePath": string;
     "lengthMs": number;
     "title": string;
@@ -228,6 +228,16 @@ export interface MBReleaseGroup {
      * local release_group row ID
      */
     "localId"?: number;
+
+    /**
+     * TotalTracks is the catalog's track count for this release group,
+     * or 0 for "the catalog does not say".  It answers "how much of
+     * this album do I have" for an album whose files declared no total
+     * -- the case GetAlbumCompleteness cannot answer -- and it is not
+     * filled by the MusicBrainz path below, which has the real
+     * tracklist and does not need a denominator.
+     */
+    "totalTracks": number;
 }
 
 /**
@@ -254,38 +264,6 @@ export interface MBTrack {
     "localId"?: number;
 }
 
-/**
- * MusicBrainzClient wraps the musicbrainzws2 library with a local
- * response cache.  Every API call checks the cache first and stores
- * successful responses for future hits.
- * 
- * A proactive rate limiter gates all outgoing requests at 1 req/sec
- * to avoid triggering MusicBrainz 429 responses.  The underlying
- * musicbrainzws2.Client still retries on 429 as a safety net, but
- * the limiter should prevent most rate-limit hits.
- */
-export interface MusicBrainzClient {
-}
-
-/**
- * RateLimiter enforces a maximum request rate using a token bucket.
- * MusicBrainz requires ≤1 request per second and rejects ALL
- * requests (not just excess) when the rate is exceeded, so callers
- * block proactively via Wait rather than retrying reactively.
- * 
- * A limiter may carry a second, slower **background lane** (see
- * WithBackgroundLane).  A caller marked by WithBackgroundPriority is
- * paced by that lane *and* yields to interactive callers: while any
- * interactive Wait is outstanding, background waits do not take a
- * token at all.  This is what keeps a multi-thousand-request backfill
- * from putting the album page the user is looking at right now behind
- * hours of queued work.
- * 
- * RateLimiter is safe for concurrent use.
- */
-export interface RateLimiter {
-}
-
 /**
  * Shelf is one horizontal row on the Explore page.
  * 

frontend/bindings/yellowjacket/backend/explore/service.ts

@@ -17,9 +17,6 @@ import { Call as $Call, CancellablePromise as $CancellablePromise } from "@wails
 // eslint-disable-next-line @typescript-eslint/ban-ts-comment
 // @ts-ignore: Unused imports
 import * as time$0 from "../../../time/models.js";
-// eslint-disable-next-line @typescript-eslint/ban-ts-comment
-// @ts-ignore: Unused imports
-import * as jobs$0 from "../jobs/models.js";
 
 // eslint-disable-next-line @typescript-eslint/ban-ts-comment
 // @ts-ignore: Unused imports
@@ -93,14 +90,6 @@ export function BrowseReleases(releaseGroupMBID: string): $CancellablePromise<$m
     return $Call.ByID(2551207897, releaseGroupMBID);
 }
 
-/**
- * CAALimiter returns the shared Cover Art Archive rate limiter.
- * Consumers must respect it for any fresh CAA HTTP GETs.
- */
-export function CAALimiter(): $CancellablePromise<$models.RateLimiter | null> {
-    return $Call.ByID(1239092428);
-}
-
 /**
  * CheckLibraryMBIDs returns which of the given MBIDs exist in the
  * local music library.  Returns a map of MBID → entity type
@@ -293,14 +282,14 @@ export function GetThumbnails(requests: $models.ThumbnailRequest[] | null): $Can
 }
 
 /**
- * GetTrackLyrics returns lyrics for a recording.  If the library
+ * GetTrackLyrics returns lyrics for a file.  If the library
  * already has them (from embedded tags) they're returned as-is;
  * otherwise it fetches from LRCLIB, persists them (updating the FTS
  * index), and returns them.  Never returns an error to the frontend —
  * a miss just yields an empty result.
  */
-export function GetTrackLyrics(recordingID: number): $CancellablePromise<$models.TrackLyrics> {
-    return $Call.ByID(1131284622, recordingID);
+export function GetTrackLyrics(audioFileID: number): $CancellablePromise<$models.TrackLyrics> {
+    return $Call.ByID(1131284622, audioFileID);
 }
 
 /**
@@ -396,14 +385,6 @@ export function LookupReleaseGroup(mbid: string): $CancellablePromise<$models.MB
     return $Call.ByID(2946174711, mbid);
 }
 
-/**
- * MusicBrainz returns the shared cached MB client so other services
- * (e.g. autotag) can reuse it without spinning up a second limiter.
- */
-export function MusicBrainz(): $CancellablePromise<$models.MusicBrainzClient | null> {
-    return $Call.ByID(3453528034);
-}
-
 /**
  * PopulateLocalCrossReferences updates the local_*_id columns on
  * explore_index after a library scan.
@@ -542,14 +523,6 @@ export function SetAlbumComplete(fn: $models.AlbumCompleteFunc): $CancellablePro
     return $Call.ByID(942474493, fn);
 }
 
-/**
- * SetJobRegistry wires the background job registry into the search
- * index so its build reports progress and controls to the frontend.
- */
-export function SetJobRegistry(reg: jobs$0.Registry | null): $CancellablePromise<void> {
-    return $Call.ByID(4291900709, reg);
-}
-
 /**
  * SimilarArtists returns artists similar to the given artist MBID.
  */

frontend/bindings/yellowjacket/backend/jobs/index.ts

@@ -16,7 +16,6 @@ export type {
     Caps,
     Job,
     LogEntry,
-    Registry,
     Stage,
     Stat
 } from "./models.js";

frontend/bindings/yellowjacket/backend/jobs/models.ts

@@ -103,13 +103,6 @@ export interface LogEntry {
     "detail"?: string;
 }
 
-/**
- * Registry owns every known job and pushes coalesced snapshots to the
- * frontend.  It is safe for concurrent use.
- */
-export interface Registry {
-}
-
 /**
  * Stage is one named sub-step of a multi-stage job, such as an index
  * build tier.  Jobs with a single linear phase leave Stages empty.

frontend/bindings/yellowjacket/backend/library/index.ts

@@ -12,12 +12,9 @@ export type {
     Artist,
     GenreWithCount,
     Info,
-    RemovalHooks,
     RemovalImpact,
     RemovalResult,
     RemovalSummary,
-    RescanHooks,
-    ScanHooks,
     ScanMetrics,
     ScanWarning,
     Track,

frontend/bindings/yellowjacket/backend/library/library.ts

@@ -13,24 +13,11 @@ import { Call as $Call, CancellablePromise as $CancellablePromise } from "@wails
 // eslint-disable-next-line @typescript-eslint/ban-ts-comment
 // @ts-ignore: Unused imports
 import * as sqlcgen$0 from "../database/sql/sqlcgen/models.js";
-// eslint-disable-next-line @typescript-eslint/ban-ts-comment
-// @ts-ignore: Unused imports
-import * as jobs$0 from "../jobs/models.js";
 
 // eslint-disable-next-line @typescript-eslint/ban-ts-comment
 // @ts-ignore: Unused imports
 import * as $models from "./models.js";
 
-/**
- * AcquirePipelineLock acquires the pipeline mutex for a tag write
- * operation.  The caller must call ReleasePipelineLock when done.
- * If a scan is currently in progress, AcquirePipelineLock blocks
- * until it completes (and vice versa).
- */
-export function AcquirePipelineLock(): $CancellablePromise<void> {
-    return $Call.ByID(2056761494);
-}
-
 /**
  * AddLibrary creates a new library from a directory path, emits a
  * LibraryAdded event, and starts an asynchronous scan.
@@ -82,12 +69,6 @@ export function FullRescan(): $CancellablePromise<$models.ScanMetrics | null> {
  * GetAlbumCompleteness answers "do I have all of this album" from the
  * tags read at scan time, with no network.
  * 
- * The album page used to ask MusicBrainz, because the only track total
- * it had was the length of whatever tracklist it was already showing —
- * which for a library copy is a tautology.  The denominator in a file's
- * "5/12" is a real answer and it is already on disk; this is where it
- * gets read.
- * 
  * Complete is deliberately >= rather than ==: bonus and hidden tracks
  * routinely put a folder over its declared total, and that is a
  * complete album, not a broken one.
@@ -97,99 +78,38 @@ export function GetAlbumCompleteness(albumID: number): $CancellablePromise<$mode
 }
 
 /**
- * GetAlbumTracks returns all tracks for a given album (release group), ordered by disc and track number.
+ * GetAlbumTracks returns one album's tracks in disc/track order.
  */
-export function GetAlbumTracks(albumID: number): $CancellablePromise<$models.Track[] | null> {
-    return $Call.ByID(300451334, albumID);
+export function GetAlbumTracks(albumID: number, libraryID: number): $CancellablePromise<$models.Track[] | null> {
+    return $Call.ByID(300451334, albumID, libraryID);
 }
 
 /**
- * GetAlbumTracksByLibrary returns tracks for the given album,
- * scoped to the given library.
+ * GetAlbums returns every album, or those with a file in one library.
  */
-export function GetAlbumTracksByLibrary(albumID: number, libraryID: number): $CancellablePromise<$models.Track[] | null> {
-    return $Call.ByID(3304485554, albumID, libraryID);
+export function GetAlbums(libraryID: number): $CancellablePromise<$models.Album[] | null> {
+    return $Call.ByID(2870789667, libraryID);
 }
 
 /**
- * GetAlbumsByArtist returns all albums where the given artist is the album artist.
+ * GetAlbumsByArtist returns the albums credited to an artist by name.
  */
-export function GetAlbumsByArtist(artistID: number): $CancellablePromise<$models.Album[] | null> {
-    return $Call.ByID(1456840721, artistID);
+export function GetAlbumsByArtist(artist: string, libraryID: number): $CancellablePromise<$models.Album[] | null> {
+    return $Call.ByID(1456840721, artist, libraryID);
 }
 
 /**
- * GetAlbumsByArtistByLibrary returns albums for the given artist
- * that have tracks in the given library.
- */
-export function GetAlbumsByArtistByLibrary(artistID: number, libraryID: number): $CancellablePromise<$models.Album[] | null> {
-    return $Call.ByID(2809291, artistID, libraryID);
-}
-
-/**
- * GetAllAlbums returns all albums with cover art and artist info for the cover grid.
- */
-export function GetAllAlbums(): $CancellablePromise<$models.Album[] | null> {
-    return $Call.ByID(2015458954);
-}
-
-/**
- * GetAllAlbumsByLibrary returns albums that have tracks in the given library.
- */
-export function GetAllAlbumsByLibrary(libraryID: number): $CancellablePromise<$models.Album[] | null> {
-    return $Call.ByID(4023050470, libraryID);
-}
-
-/**
- * GetAllArtists returns artists that are credited as album artists, ordered by name.
- */
-export function GetAllArtists(): $CancellablePromise<$models.Artist[] | null> {
-    return $Call.ByID(2529088294);
-}
-
-/**
- * GetAllArtistsByLibrary returns artists that have albums with tracks
- * in the given library.
- */
-export function GetAllArtistsByLibrary(libraryID: number): $CancellablePromise<$models.Artist[] | null> {
-    return $Call.ByID(1170594642, libraryID);
-}
-
-/**
- * GetAllGenresWithCounts returns all genres with their track counts.
- */
-export function GetAllGenresWithCounts(): $CancellablePromise<$models.GenreWithCount[] | null> {
-    return $Call.ByID(602231298);
-}
-
-/**
- * GetAllGenresWithCountsByLibrary returns genres with track counts
- * scoped to the given library.
- */
-export function GetAllGenresWithCountsByLibrary(libraryID: number): $CancellablePromise<$models.GenreWithCount[] | null> {
-    return $Call.ByID(772684334, libraryID);
-}
-
-/**
- * GetAllLibrariesWithTrackCounts returns all libraries with their
- * audio file counts. Typically 1-5 libraries so the loop is trivial.
+ * GetAllLibrariesWithTrackCounts lists the libraries and their sizes.
  */
 export function GetAllLibrariesWithTrackCounts(): $CancellablePromise<$models.Info[] | null> {
     return $Call.ByID(3420301148);
 }
 
 /**
- * GetAllTracks returns an array of track structs of every file in the library.
+ * GetArtists returns the album artists in a library.
  */
-export function GetAllTracks(): $CancellablePromise<$models.Track[] | null> {
-    return $Call.ByID(2991050010);
-}
-
-/**
- * GetAllTracksByLibrary returns tracks scoped to a specific library.
- */
-export function GetAllTracksByLibrary(libraryID: number): $CancellablePromise<$models.Track[] | null> {
-    return $Call.ByID(3882999766, libraryID);
+export function GetArtists(libraryID: number): $CancellablePromise<$models.Artist[] | null> {
+    return $Call.ByID(2231116965, libraryID);
 }
 
 /**
@@ -200,8 +120,8 @@ export function GetAllTracksByLibrary(libraryID: number): $CancellablePromise<$m
  * resolved paths with one binding call per album, sequentially, and each
  * asked for whole track rows to read one field off them (perf.m2).  This
  * is that question asked once.  The result is grouped rather than
- * flattened because the caller owns the ordering — an album list is
- * sorted by name, not by id — and because the drag cache stores it per
+ * flattened because the caller owns the ordering - an album list is
+ * sorted by name, not by id - and because the drag cache stores it per
  * album.
  * 
  * A library id of 0 means "every library", matching the caller's
@@ -212,36 +132,33 @@ export function GetFilePathsByAlbums(albumIDs: number[] | null, libraryID: numbe
 }
 
 /**
- * GetFilePathsByGenres returns the file paths of every track tagged with
- * the given genres, grouped by genre name.  See GetFilePathsByAlbums —
- * same finding, same shape, and the caller still owns the de-duplication
- * across genres because it owns the order.
+ * GetFilePathsByGenres returns file paths grouped by genre name.
  */
 export function GetFilePathsByGenres(genreNames: string[] | null, libraryID: number): $CancellablePromise<{ [_ in string]?: string[] | null } | null> {
     return $Call.ByID(1180707302, genreNames, libraryID);
 }
 
 /**
- * GetFilePathsByRecordingMBIDs returns the file paths of every track
- * whose recording MBID is in mbids, grouped by MBID.
+ * GetFilePathsByRecordingMBIDs answers "which of these catalog
+ * recordings do I actually have a file for", grouped by MBID.
  * 
- * This is the catalog side of GetFilePathsByAlbums.  An Explore album
- * page knows what the user owns as a set of recording MBIDs and nothing
- * else: that is exactly how the backend decides a track's InLibrary
- * flag (markReleasesInLibrary → CheckMBIDs), and MBTrack.LocalID is a
- * declared field that nothing writes, so there is no id to ask by.
- * 
- * Grouped rather than flattened for the same two reasons as its
- * siblings — the caller owns the order (the tracklist's, not the
- * database's), and one recording can have more than one file, which is
- * what this app's duplicate detection exists for.
- * 
- * A library id of 0 means "every library".
+ * It asks audio_files, which is the only table whose rows are files.
+ * The version of this question that asked the metadata tables said yes
+ * for 129 tracks in a real library that had no file at all - a
+ * retagged file left its old recording row behind, the catalog matched
+ * it, and every action on the row then failed.
  */
 export function GetFilePathsByRecordingMBIDs(mbids: string[] | null, libraryID: number): $CancellablePromise<{ [_ in string]?: string[] | null } | null> {
     return $Call.ByID(2789061644, mbids, libraryID);
 }
 
+/**
+ * GetGenres returns every genre with its track count.
+ */
+export function GetGenres(libraryID: number): $CancellablePromise<$models.GenreWithCount[] | null> {
+    return $Call.ByID(2817241511, libraryID);
+}
+
 /**
  * GetRemovalImpact returns pre-removal counts for the confirmation
  * dialog. All queries are read-only.
@@ -259,26 +176,30 @@ export function GetScanQueueLength(): $CancellablePromise<number> {
 }
 
 /**
- * GetTrackMBIDs returns the MusicBrainz IDs for the track at the
- * given file path.  Returns empty strings for entities without MBIDs.
+ * GetTrackMBIDs returns the MusicBrainz ids for one file.
  */
 export function GetTrackMBIDs(filePath: string): $CancellablePromise<$models.TrackMBIDs> {
     return $Call.ByID(56752473, filePath);
 }
 
 /**
- * GetTracksByGenre returns all tracks tagged with the given genre.
+ * GetTracks returns every track in a library, or in all of them when
+ * libraryID is 0.
+ * 
+ * The library id is a parameter rather than a second method because the
+ * two used to be separate queries, separate bindings and a branch at
+ * every call site - and the scoped form costs nothing (measured: 23 ms
+ * against 21 ms over 26k rows).
  */
-export function GetTracksByGenre(genreName: string): $CancellablePromise<$models.Track[] | null> {
-    return $Call.ByID(1674220245, genreName);
+export function GetTracks(libraryID: number): $CancellablePromise<$models.Track[] | null> {
+    return $Call.ByID(933082923, libraryID);
 }
 
 /**
- * GetTracksByGenreByLibrary returns tracks tagged with the given
- * genre, scoped to the given library.
+ * GetTracksByGenre returns every track carrying a genre.
  */
-export function GetTracksByGenreByLibrary(genreName: string, libraryID: number): $CancellablePromise<$models.Track[] | null> {
-    return $Call.ByID(4240564783, genreName, libraryID);
+export function GetTracksByGenre(genre: string, libraryID: number): $CancellablePromise<$models.Track[] | null> {
+    return $Call.ByID(1674220245, genre, libraryID);
 }
 
 /**
@@ -318,13 +239,6 @@ export function QueuedLibraryNames(): $CancellablePromise<string[] | null> {
     return $Call.ByID(2036951097);
 }
 
-/**
- * ReleasePipelineLock releases the pipeline mutex after a tag write.
- */
-export function ReleasePipelineLock(): $CancellablePromise<void> {
-    return $Call.ByID(2053843147);
-}
-
 /**
  * RemoveFromLibrary deletes the database rows for the given file paths
  * and records each path as excluded, so the next scan does not import
@@ -392,51 +306,10 @@ export function ScanLibrary(id: number): $CancellablePromise<void> {
 }
 
 /**
- * SearchTracks performs an FTS5 full-text search and returns
- * matching tracks with full metadata.
+ * SearchTracks runs the library's FTS index and returns whole tracks.
  */
-export function SearchTracks(query: string): $CancellablePromise<$models.Track[] | null> {
-    return $Call.ByID(3848515709, query);
-}
-
-/**
- * SearchTracksByLibrary performs an FTS5 search scoped to a specific
- * library and returns matching tracks with full metadata.
- */
-export function SearchTracksByLibrary(query: string, libraryID: number): $CancellablePromise<$models.Track[] | null> {
-    return $Call.ByID(152384327, query, libraryID);
-}
-
-/**
- * SetJobRegistry wires the background job registry so scans report
- * progress, logs, and pause/cancel controls to the frontend.
- */
-export function SetJobRegistry(reg: jobs$0.Registry | null): $CancellablePromise<void> {
-    return $Call.ByID(4271773525, reg);
-}
-
-/**
- * SetRemovalHooks provides optional hooks for cross-cutting
- * orchestration during RemoveLibrary.
- */
-export function SetRemovalHooks(h: $models.RemovalHooks): $CancellablePromise<void> {
-    return $Call.ByID(3190933207, h);
-}
-
-/**
- * SetRescanHooks provides optional hooks for cross-cutting
- * orchestration during FullRescan.
- */
-export function SetRescanHooks(h: $models.RescanHooks): $CancellablePromise<void> {
-    return $Call.ByID(1944064333, h);
-}
-
-/**
- * SetScanHooks provides optional hooks for cross-cutting
- * orchestration after each library scan.
- */
-export function SetScanHooks(h: $models.ScanHooks): $CancellablePromise<void> {
-    return $Call.ByID(520513414, h);
+export function SearchTracks(query: string, libraryID: number): $CancellablePromise<$models.Track[] | null> {
+    return $Call.ByID(3848515709, query, libraryID);
 }
 
 /**

frontend/bindings/yellowjacket/backend/library/models.ts

@@ -8,11 +8,10 @@ import * as time$0 from "../../../time/models.js";
 /**
  * Album represents an album for the cover grid display.
  * 
- * Year is the album's preferred display year — the release-group's
- * original-release-date (MusicBrainz first-release-date) when known,
- * falling back to the file-tag year.  ReleaseYear is the file-tag
- * year of the specific release in the library; for a 2010 remaster
- * of a 1973 album, Year=1973 and ReleaseYear=2010.
+ * Year is the album's preferred display year - MusicBrainz's
+ * first-release-date when known, falling back to the file-tag year.
+ * ReleaseYear is the file-tag year of the specific copy in the library;
+ * for a 2010 remaster of a 1973 album, Year=1973 and ReleaseYear=2010.
  */
 export interface Album {
     "ID": number;
@@ -58,7 +57,7 @@ export interface Artist {
 }
 
 /**
- * GenreWithCount holds a genre name and its associated track count.
+ * GenreWithCount is a genre and how many tracks carry it.
  */
 export interface GenreWithCount {
     "Name": string;
@@ -66,8 +65,7 @@ export interface GenreWithCount {
 }
 
 /**
- * Info contains library metadata enriched with track count
- * for the frontend settings UI.
+ * Info is one library and how many files are in it.
  */
 export interface Info {
     "id": number;
@@ -76,29 +74,6 @@ export interface Info {
     "trackCount": number;
 }
 
-/**
- * RemovalHooks contains callbacks invoked during library removal.
- * These break circular dependencies between the library, player,
- * and queue packages.
- */
-export interface RemovalHooks {
-    /**
-     * StopPlayback stops the currently-playing track.
-     */
-    "StopPlayback": any;
-
-    /**
-     * CompactQueue reloads queue state after cascade deletes.
-     */
-    "CompactQueue": any;
-
-    /**
-     * PostRemove runs after the removal commits, for cross-cutting
-     * invalidation (e.g. clearing library-sync "ready" markers).
-     */
-    "PostRemove": any;
-}
-
 /**
  * RemovalImpact contains pre-removal counts for the confirmation dialog.
  */
@@ -136,53 +111,6 @@ export interface RemovalSummary {
     "queueItemsRemoved": number;
 }
 
-/**
- * RescanHooks holds optional callbacks that run before and after
- * the library-clear-and-scan phase of a full rescan.  The app
- * layer sets these to coordinate cross-cutting concerns (e.g.
- * clearing the queue, restoring playlists) without the library
- * needing to know about those packages.
- */
-export interface RescanHooks {
-    /**
-     * PreClear runs before library data is wiped
-     * (e.g. clear queue and stop playback).
-     */
-    "PreClear": any;
-
-    /**
-     * PostScan runs after the scan completes
-     * (e.g. restore playlists from M3U8 files).
-     */
-    "PostScan": any;
-}
-
-/**
- * ScanHooks contains callbacks invoked after a library scan
- * completes.  The app layer wires these so the library package
- * does not depend on the playlist package directly.
- */
-export interface ScanHooks {
-    /**
-     * RepopulatePlaylists re-imports tracks for playlists that
-     * lost their playlist_tracks rows (e.g., from a pre-fix
-     * FullRescan).  Runs before ResolvePhantoms.
-     */
-    "RepopulatePlaylists": any;
-
-    /**
-     * ResolvePhantoms re-links phantom playlist tracks whose
-     * files now exist in the library after scanning.
-     */
-    "ResolvePhantoms": any;
-
-    /**
-     * OnAllScansComplete runs after ALL queued scans finish
-     * (queue drained).
-     */
-    "OnAllScansComplete": any;
-}
-
 /**
  * ScanMetrics holds timing and count data collected during a library scan.
  * Worker-pool fields are protected by a mutex; DB-writer fields are
@@ -198,7 +126,6 @@ export interface ScanMetrics {
     "extractionWallClock": time$0.Duration;
     "dbWritesWallClock": time$0.Duration;
     "orphanCleanup": time$0.Duration;
-    "postScanVariants": time$0.Duration;
 
     /**
      * Per-format extraction (cumulative across workers).
@@ -274,7 +201,7 @@ export interface ScanWarning {
 }
 
 /**
- * Track represents a playable audio file in the library.
+ * Track is one audio file with everything a list needs to draw it.
  */
 export interface Track {
     "TrackName": string;
@@ -305,8 +232,7 @@ export interface Track {
 }
 
 /**
- * TrackMBIDs holds MusicBrainz identifiers for a track, resolved
- * from the recording, release group, and artist tables.
+ * TrackMBIDs are the MusicBrainz ids a file's tags carry.
  */
 export interface TrackMBIDs {
     "recordingMbid": string;

frontend/bindings/yellowjacket/backend/mediacontrols/index.ts

@@ -1,6 +0,0 @@
-// Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
-// This file is automatically generated. DO NOT EDIT
-
-export type {
-    Handler
-} from "./models.js";

frontend/bindings/yellowjacket/backend/mediacontrols/models.ts

@@ -1,7 +0,0 @@
-// Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
-// This file is automatically generated. DO NOT EDIT
-
-/**
- * Handler manages the OS media control integration.
- */
-export type Handler = any;

frontend/bindings/yellowjacket/backend/player/player.ts

@@ -14,10 +14,6 @@
 // @ts-ignore: Unused imports
 import { Call as $Call, CancellablePromise as $CancellablePromise } from "@wailsio/runtime";
 
-// eslint-disable-next-line @typescript-eslint/ban-ts-comment
-// @ts-ignore: Unused imports
-import * as mediacontrols$0 from "../mediacontrols/models.js";
-
 // eslint-disable-next-line @typescript-eslint/ban-ts-comment
 // @ts-ignore: Unused imports
 import * as $models from "./models.js";
@@ -138,24 +134,6 @@ export function Seek(targetSeconds: number): $CancellablePromise<void> {
     return $Call.ByID(829056707, targetSeconds);
 }
 
-/**
- * SetMediaControls provides an OS media controls handler. When set,
- * the player pushes metadata, playback state, volume, and seek
- * notifications to the OS media overlay.
- */
-export function SetMediaControls(h: mediacontrols$0.Handler): $CancellablePromise<void> {
-    return $Call.ByID(1896286877, h);
-}
-
-/**
- * SetPlaybackFinishedHandler sets a callback invoked when a track
- * finishes naturally. This allows the queue to drive auto-advance
- * without circular imports.
- */
-export function SetPlaybackFinishedHandler(handler: any): $CancellablePromise<void> {
-    return $Call.ByID(2023377546, handler);
-}
-
 /**
  * SetVolume sets the playback volume (0-100), emits a
  * VolumeChanged event, and persists the new level.

frontend/bindings/yellowjacket/backend/playlist/index.ts

@@ -10,7 +10,6 @@ export type {
     CandidateTrack,
     DuplicateCheckResult,
     DuplicateTrackInfo,
-    FavoritesConfigProvider,
     PhantomMatch,
     PhantomSearchResult,
     Summary,

frontend/bindings/yellowjacket/backend/playlist/models.ts

@@ -35,12 +35,6 @@ export interface DuplicateTrackInfo {
     "Duration": string;
 }
 
-/**
- * FavoritesConfigProvider is a narrow interface for reading and
- * writing the default-playlist configuration.
- */
-export type FavoritesConfigProvider = any;
-
 /**
  * PhantomMatch represents a high-confidence pairing of a phantom
  * track to a library track.

frontend/bindings/yellowjacket/backend/playlist/service.ts

@@ -309,14 +309,6 @@ export function SearchLibrary(query: string): $CancellablePromise<$models.Candid
     return $Call.ByID(3912116995, query);
 }
 
-/**
- * SetFavoritesConfig sets the provider used to read and write
- * the default-playlist configuration.
- */
-export function SetFavoritesConfig(provider: $models.FavoritesConfigProvider): $CancellablePromise<void> {
-    return $Call.ByID(2117418507, provider);
-}
-
 /**
  * ToggleDefaultPlaylistTrack adds or removes a single track
  * from the default playlist.  Returns true if the track is now

frontend/bindings/yellowjacket/backend/queue/index.ts

@@ -11,9 +11,7 @@ export {
 } from "./models.js";
 
 export type {
-    FallbackSource,
     Source,
     State,
-    Track,
-    TrackLoader
+    Track
 } from "./models.js";

frontend/bindings/yellowjacket/backend/queue/models.ts

@@ -1,14 +1,6 @@
 // Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
 // This file is automatically generated. DO NOT EDIT
 
-/**
- * FallbackSource resolves what should auto-play, if anything, once the
- * queue is exhausted. Implemented outside this package (see app.go) so
- * the queue does not need to know about config, playlists or
- * similarity data.
- */
-export type FallbackSource = any;
-
 /**
  * RepeatMode represents the queue repeat behavior.
  */
@@ -65,8 +57,3 @@ export interface Track {
     "releaseGroupMbid": string;
     "recordingMbid": string;
 }
-
-/**
- * TrackLoader is the interface the queue uses to tell the player to load a file.
- */
-export type TrackLoader = any;

frontend/bindings/yellowjacket/backend/queue/queue.ts

@@ -180,22 +180,6 @@ export function SaveState(): $CancellablePromise<void> {
     return $Call.ByID(2913531465);
 }
 
-/**
- * SetFallbackSource provides the queue with what to auto-play, if
- * anything, once it runs out. A nil source (the default) leaves
- * today's behavior: the queue just goes idle.
- */
-export function SetFallbackSource(fs: $models.FallbackSource): $CancellablePromise<void> {
-    return $Call.ByID(1344903240, fs);
-}
-
-/**
- * SetPlayer provides the queue with a reference to the player for auto-advance.
- */
-export function SetPlayer(player: $models.TrackLoader): $CancellablePromise<void> {
-    return $Call.ByID(2806250342, player);
-}
-
 /**
  * SetQueue replaces the entire queue with new tracks and starts playing.
  * When shuffleStart is true and shuffle mode is active, a random first