consolidate _update_email_in_args

main.py

@@ -208,6 +208,7 @@ def main():
             # Check port availability before starting HTTP server
             try:
                 with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
+                    s.settimeout(1.0)  # Prevent hanging on bind
                     s.bind(("0.0.0.0", port))
             except OSError:
                 safe_print(f"❌ Port {port} is already in use. Cannot start HTTP server.")