fixex chat response text from objet to string

bridge/aria_bridge.py

@@ -803,7 +803,7 @@ class ARIABridge:
             "method": "chat.send",
             "params": {
                 "sessionKey": self._session_key,
-                "message": text,
+                "text": text,
                 "idempotencyKey": str(uuid.uuid4()),
             },
         })

diagnostic/server.js

@@ -377,7 +377,7 @@ function sendToGateway(text, isPipeline) {
     method: "chat.send",
     params: {
       sessionKey: "aria-diagnostic",
-      message: text,
+      text: text,
       idempotencyKey: crypto.randomUUID(),
     },
   };