feat(sandbox): add Node.js code execution support to sandbox

sandbox/app/logger.py

@@ -12,25 +12,27 @@ def setup_logger() -> logging.Logger:
     """Setup application logger"""
     global _logger
 
+    if _logger is not None:
+        return _logger
+
     config = get_config()
 
     # Create logger
     _logger = logging.getLogger("sandbox")
     _logger.setLevel(logging.DEBUG if config.app.debug else logging.INFO)
 
-    # Create console handler
-    handler = logging.StreamHandler(sys.stdout)
-    handler.setLevel(logging.DEBUG if config.app.debug else logging.INFO)
+    # 只在 logger 没有 handler 时才添加
+    if not _logger.handlers:
+        handler = logging.StreamHandler(sys.stdout)
+        handler.setLevel(logging.DEBUG if config.app.debug else logging.INFO)
 
-    # Create formatter
-    formatter = logging.Formatter(
-        '%(asctime)s - %(name)s - %(levelname)s - %(message)s',
-        datefmt='%Y-%m-%d %H:%M:%S'
-    )
-    handler.setFormatter(formatter)
+        formatter = logging.Formatter(
+            '%(asctime)s - %(name)s - %(levelname)s - %(message)s',
+            datefmt='%Y-%m-%d %H:%M:%S'
+        )
+        handler.setFormatter(formatter)
 
-    # Add handler to logger
-    _logger.addHandler(handler)
+        _logger.addHandler(handler)
 
     return _logger