Move timeout default from schedule_to_close to start_to_close

Author: tconley1428

temporalio/contrib/openai_agents/_model_parameters.py

@@ -20,13 +20,13 @@ class ModelActivityParameters:
     task_queue: Optional[str] = None
     """Specific task queue to use for model activities."""
 
-    schedule_to_close_timeout: Optional[timedelta] = timedelta(seconds=60)
+    schedule_to_close_timeout: Optional[timedelta] = None
     """Maximum time from scheduling to completion."""
 
     schedule_to_start_timeout: Optional[timedelta] = None
     """Maximum time from scheduling to starting."""
 
-    start_to_close_timeout: Optional[timedelta] = None
+    start_to_close_timeout: Optional[timedelta] = timedelta(seconds=60)
     """Maximum time for the activity to complete."""
 
     heartbeat_timeout: Optional[timedelta] = None