Fix frontend and api state handling (#11)

* Fix frontend and api state handling

* Increase timeout to 6 mins

* Fix test

src/geo_assistant/frontend/app.py

@@ -31,6 +31,7 @@ def stream_chat(user_message: str):
         "agent_state_input": {
             "messages": [{"type": "human", "content": user_message}],
             "place": None,
+            "search_area": None,
         },
     }
 
@@ -38,7 +39,7 @@ def stream_chat(user_message: str):
         "POST",
         f"{API_BASE_URL}/chat",
         json=request_body,
-        timeout=60.0,
+        timeout=360.0,
     ) as response:
         response.raise_for_status()