update agent event typing

Author: leehuwuj

templates/components/multiagent/python/app/workflows/single.py

@@ -36,14 +36,16 @@ class AgentRunEvent(Event):
     name: str
     msg: str
     event_type: AgentRunEventType = Field(default=AgentRunEventType.TEXT)
+    data: Optional[dict] = None
 
     def to_response(self) -> dict:
         return {
             "type": "agent",
             "data": {
                 "name": self.name,
-                "event_type": self.event_type.value,
+                "type": self.event_type.value,
                 "msg": self.msg,
+                "data": self.data,
             },
         }