加入调试日志

backend/app/core/remote_executor.py

@@ -236,6 +236,10 @@ def run_inference_remote(
 
     code, stdout, stderr = ssh_exec(remote_cmd, timeout=600)
 
+    logger.info(f"Remote inference SSH result: code={code}, stdout_len={len(stdout)}, stderr_len={len(stderr)}")
+    if stderr:
+        logger.warning(f"Remote inference stderr: {stderr[:500]}")
+
     if code != 0:
         logger.error(f"Remote inference failed: {stderr}")
         return {"error": stderr.strip() or "Remote inference failed"}