Quick test mode for simulation tests

Fixed o4-mini name, OpenAI removed o4-mini-high
Add max_output_tokens property to ModelCapabilities
Fixed tests after refactor

simulator_tests/conversation_base_test.py

@@ -182,6 +182,10 @@ class ConversationBaseTest(BaseSimulatorTest):
 
             # Look for continuation_id in various places
             if isinstance(response_data, dict):
+                # Check top-level continuation_id (workflow tools)
+                if "continuation_id" in response_data:
+                    return response_data["continuation_id"]
+
                 # Check metadata
                 metadata = response_data.get("metadata", {})
                 if "thread_id" in metadata: