fix:优化pm2配置项

crawler/parser_ai.py

@@ -5,7 +5,19 @@ AI 新闻分类与严重度判定
 设置 PARSER_AI_DISABLED=1 可只用规则（更快）
 """
 import os
-from typing import Literal, Optional, Tuple
+from typing import Any, Optional, Tuple
+
+try:
+    from typing import Literal  # type: ignore
+except ImportError:
+    try:
+        from typing_extensions import Literal  # type: ignore
+    except ImportError:
+        class _LiteralFallback:
+            def __getitem__(self, item):
+                return Any
+
+        Literal = _LiteralFallback()
 
 Category = Literal["deployment", "alert", "intel", "diplomatic", "other"]
 Severity = Literal["low", "medium", "high", "critical"]