Fix pydantic json error

k8s/curaflow-agent/deployment.yaml

@@ -33,7 +33,7 @@ spec:
         - name: ANTHROPIC_API_KEY
           value: "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"
         - name: LLM_MODEL
-          value: "claude-3-5-sonnet-20241022"
+          value: "claude-sonnet-4-6"
         resources:
           limits:
             cpu: 500m

src/curaflow_agent/activities.py

@@ -200,7 +200,7 @@ async def parse_booking_intent_activity(chat_history: list[dict]) -> dict:
     try:
         print(f"Parsing intent for history:\n{history_str}")
         result = chain.invoke({"history": history_str})
-        print(f"[Claude Response]: {result.json(indent=2)}")
+        print(f"[Claude Response]: {result.model_dump_json(indent=2) if hasattr(result, 'model_dump_json') else result.dict()}")
         return result.dict()
     except Exception as e:
         print(f"Failed to parse booking intent: {e}")