feat(ui): persist user settings and audio position across sessions

- Replace double inline player controls with compact 'now playing' indicator when mini-bar is active
- Add user_settings PocketBase collection (auto_next, voice, speed) and audio_time field on progress
- Add getSettings/saveSettings/setAudioTime/getAudioTime server functions
- Add GET/PUT /api/settings and GET/PATCH /api/progress/audio-time API routes
- Load settings server-side in layout and apply to audioStore on mount
- Debounced 800ms effect persists settings changes to DB
- Save audio currentTime on pause/end; restore position when replaying a chapter

scripts/pb-init.sh

@@ -181,9 +181,24 @@ create_collection "app_users" '{
   ]
 }'
 
+create_collection "user_settings" '{
+  "name": "user_settings",
+  "type": "base",
+  "fields": [
+    {"name": "session_id", "type": "text", "required": true},
+    {"name": "user_id",    "type": "text"},
+    {"name": "auto_next",  "type": "bool"},
+    {"name": "voice",      "type": "text"},
+    {"name": "speed",      "type": "number"},
+    {"name": "updated",    "type": "date"}
+  ]
+}'
+
 # ─── 5. Schema migrations (idempotent field additions) ───────────────────────
 # Ensures fields added after initial deploy are present in existing instances.
 
 ensure_field "progress" "user_id" "text"
+ensure_field "progress" "audio_time" "number"
+ensure_field "user_settings" "user_id" "text"
 
 log "all collections ready"