Improve bridge routing logs and stabilize control portal MQTT reconnect

bridge/app.py

@@ -42,6 +42,7 @@ MQTT_BASE_TOPIC = os.getenv("MQTT_BASE_TOPIC", "evs")
 MQTT_TTS_TOPIC = os.getenv("MQTT_TTS_TOPIC", f"{MQTT_BASE_TOPIC}/+/play_pcm16le")
 MQTT_STATUS_RETAIN = getenv_bool("MQTT_STATUS_RETAIN", True)
 DEVICE_PAIR_MAP_JSON = os.getenv("DEVICE_PAIR_MAP", "").strip()
+WS_TX_CHUNK_BYTES = int(os.getenv("WS_TX_CHUNK_BYTES", "1024"))
 
 HA_WEBHOOK_URL = os.getenv("HA_WEBHOOK_URL", "").strip()
 SAVE_SESSIONS = getenv_bool("SAVE_SESSIONS", True)
@@ -118,7 +119,11 @@ class BridgeState:
         if not session:
             return False
         try:
-            await session.ws.send(pcm_data)
+            if not pcm_data:
+                return True
+            chunk_size = max(128, WS_TX_CHUNK_BYTES)
+            for i in range(0, len(pcm_data), chunk_size):
+                await session.ws.send(pcm_data[i : i + chunk_size])
             return True
         except Exception:
             log.exception("ws send to device failed")
@@ -457,8 +462,18 @@ async def handle_binary_message(device_id: str, session: DeviceSession, data: by
     if ECHO_ENABLED:
         target_device = paired_output_device(device_id)
         ok = await state.send_binary_to_device(target_device, data)
-        if not ok and target_device != device_id:
-            log.debug("paired output device not connected: src=%s target=%s", device_id, target_device)
+        if ok:
+            if target_device != device_id:
+                log.info(
+                    "audio routed: src=%s -> target=%s bytes=%s",
+                    device_id,
+                    target_device,
+                    len(data),
+                )
+            else:
+                log.debug("audio echo self: device=%s bytes=%s", device_id, len(data))
+        elif target_device != device_id:
+            log.warning("paired output device not connected: src=%s target=%s", device_id, target_device)
 
 
 def parse_device_id(path: str) -> str: