Fix Message object attribute access in job monitoring

- Change response.get('msg_type') to response.msg_type
- Change response.get('data') to response.data
- Message objects don't have get method, use attributes instead

vidai/cluster_master.py

@@ -647,8 +647,8 @@ class ClusterMaster:
 
                     # Try to receive response
                     response = backend_comm.receive_message()
-                    if response and response.get('msg_type') in ['analyze_response', 'train_response']:
-                        result_data = response.get('data', {})
+                    if response and response.msg_type in ['analyze_response', 'train_response']:
+                        result_data = response.data
                         print(f"Received result for job {job_id}")
 
                         # Handle result
@@ -662,7 +662,7 @@ class ClusterMaster:
                             del self.pending_jobs[job_id]
                         return
 
-                    elif response and response.get('msg_type') == 'result_pending':
+                    elif response and response.msg_type == 'result_pending':
                         # Result not ready yet, wait and try again
                         await asyncio.sleep(1)
                         continue