Add debug logs to backend.py for worker_sockets debugging

vidai/backend.py

@@ -59,6 +59,8 @@ def handle_web_message(message: Message, client_sock=None) -> Message:
         backend = get_analysis_backend()
         worker_key = f'analysis_{backend}'
         print(f"Backend forwarding analyze_request {message.msg_id} to worker {worker_key}")
+        print(f"DEBUG: backend = {backend}, worker_key = {worker_key}")
+        print(f"DEBUG: Checking worker_sockets for {worker_key}, keys: {list(worker_sockets.keys())}")
         if worker_key in worker_sockets:
             # Forward to local worker
             import json
@@ -139,6 +141,7 @@ def handle_worker_message(message: Message, client_sock) -> None:
         if worker_type:
             worker_sockets[worker_type] = client_sock
             print(f"Worker {worker_type} registered")
+            print(f"DEBUG: worker_sockets keys after register: {list(worker_sockets.keys())}")
 
             # Notify cluster master that a worker has registered
             try: