Added audio sensors to camera metrics and API stats (#8109)

* Added audio sensor to camera metrics and API stats

* Update types.py

* Update app.py

frigate/app.py

@@ -163,6 +163,8 @@ class FrigateApp:
                 "frame_queue": mp.Queue(maxsize=2),
                 "capture_process": None,
                 "process": None,
+                "audio_rms": mp.Value("d", 0.0),  # type: ignore[typeddict-item]
+                "audio_dBFS": mp.Value("d", 0.0),  # type: ignore[typeddict-item]
             }
             self.ptz_metrics[camera_name] = {
                 "ptz_autotracker_enabled": mp.Value(  # type: ignore[typeddict-item]
@@ -500,6 +502,7 @@ class FrigateApp:
                 args=(
                     self.config,
                     self.audio_recordings_info_queue,
+                    self.camera_metrics,
                     self.feature_metrics,
                     self.inter_process_communicator,
                 ),