feat(vlc_service): refactor VLC service to use subprocess for sound playback and management; update process tracking

app/routes/soundboard.py

@@ -100,21 +100,21 @@ def get_status():
     try:
         playing_count = vlc_service.get_playing_count()
         
-        # Get detailed instance information
+        # Get detailed process information
         with vlc_service.lock:
-            instances = []
-            for instance_id, instance_data in vlc_service.instances.items():
-                instances.append({
-                    "id": instance_id,
-                    "sound_id": instance_data.get("sound_id"),
-                    "created_at": instance_data.get("created_at"),
+            processes = []
+            for process_id, process in vlc_service.processes.items():
+                processes.append({
+                    "id": process_id,
+                    "pid": process.pid,
+                    "running": process.poll() is None,
                 })
         
         return jsonify(
             {
                 "playing_count": playing_count,
                 "is_playing": playing_count > 0,
-                "instances": instances,
+                "processes": processes,
             }
         )
     except Exception as e: