feature: add auto-pause playback feature

data/playback/src/commonMain/kotlin/bzh/ajaury/chombev/player/data/PlaybackRepositoryImpl.kt

@@ -186,11 +186,16 @@ internal class PlaybackRepositoryImpl(
     }
 
     /**
-     * Inserts the configured silent break between spoken phrases: when continuous playback reaches
-     * the next phrase, playback pauses just before that phrase starts, then resumes after the break.
+     * Reacts to reaching the next spoken phrase during continuous playback, just before that phrase
+     * starts. Depending on preferences it either:
+     * - pauses and waits for the user to resume, when auto-pause is enabled, or
+     * - pauses for the configured silent break and then resumes on its own.
      *
-     * Breaks only happen on automatic advancement — manual seeking and previous/next navigation are
-     * ignored via [suppressBreaks].
+     * Auto-pause takes precedence: while it is on, the break between phrases is ignored.
+     *
+     * This only happens on automatic advancement — manual seeking and previous/next navigation are
+     * ignored because they cancel the running break job and never re-enter [PlaybackState.PLAYING]
+     * through this path.
      */
     private suspend fun observePhraseBreaks() {
         phraseBreakJob?.cancel()
@@ -203,6 +208,11 @@ internal class PlaybackRepositoryImpl(
                 if (playbackState.firstOrNull() != PlaybackState.PLAYING) return@onEach
 
                 val playbackPreferences = preferencesRepository.playbackPreferences.first()
+                if (playbackPreferences.autoPause) {
+                    audioPlayer.pause()
+                    return@onEach
+                }
+
                 val breakDuration = playbackPreferences.breakBetweenPhrases
                 if (breakDuration <= Duration.ZERO) return@onEach