Add chatId in ws connection

config/fastgpt.example.json

@@ -45,7 +45,8 @@
     "user_speech_timeout_sec": 0.2
   },
   "agent": {
-    "greeting_mode": "fastgpt_opener"
+    "greeting_mode": "fastgpt_opener",
+    "fastgpt_reconnect_greeting": "欢迎回来继续对话"
   },
   "services": {
     "stt": {
@@ -67,7 +68,6 @@
       "base_url": "http://localhost:3030",
       "model": "my-voice-app",
       "app_id": "6a153aed53e3f8d9f2744905",
-      "chat_id": null,
       "variables": {},
       "detail": false,
       "timeout_sec": 60.0