feat(spotify): wire provider through manager/instance; skip playback sentinel

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/bot/manager.ts

@@ -76,6 +76,7 @@ export class BotManager extends EventEmitter {
   private youtubeProvider: MusicProvider;
   private localProvider: MusicProvider;
   private kugouProvider: MusicProvider;
+  private spotifyProvider: MusicProvider;
   private database: BotDatabase;
   private config: BotConfig;
   private logger: Logger;
@@ -94,7 +95,8 @@ export class BotManager extends EventEmitter {
     permissions: PermissionStore,
     configPath: string,
     localProvider?: MusicProvider,
-    kugouProvider?: MusicProvider
+    kugouProvider?: MusicProvider,
+    spotifyProvider?: MusicProvider
   ) {
     super();
     this.neteaseProvider = neteaseProvider;
@@ -103,6 +105,7 @@ export class BotManager extends EventEmitter {
     this.youtubeProvider = new YouTubeProvider();
     this.localProvider = localProvider ?? neteaseProvider;
     this.kugouProvider = kugouProvider ?? neteaseProvider;
+    this.spotifyProvider = spotifyProvider ?? neteaseProvider;
     // Let the local provider see which uploads are still referenced by any
     // bot's queue, so it never deletes a file another queue/bot still needs.
     const referenceable = this.localProvider as Partial<{
@@ -141,6 +144,7 @@ export class BotManager extends EventEmitter {
       youtubeProvider: this.youtubeProvider,
       localProvider: this.localProvider,
       kugouProvider: this.kugouProvider,
+      spotifyProvider: this.spotifyProvider,
       database: this.database,
       config: this.config,
       logger: this.logger,
@@ -281,6 +285,7 @@ export class BotManager extends EventEmitter {
         youtubeProvider: this.youtubeProvider,
         localProvider: this.localProvider,
         kugouProvider: this.kugouProvider,
+        spotifyProvider: this.spotifyProvider,
         database: this.database,
         config: this.config,
         logger: this.logger,
@@ -335,6 +340,7 @@ export class BotManager extends EventEmitter {
         youtubeProvider: this.youtubeProvider,
         localProvider: this.localProvider,
         kugouProvider: this.kugouProvider,
+        spotifyProvider: this.spotifyProvider,
         database: this.database,
         config: this.config,
         logger: this.logger,