fix(HEL-417): 配置根日志让影子对比报告落入容器日志

backend/bootstrap/runtime.py

@@ -1,11 +1,23 @@
 from __future__ import annotations
 
 import argparse
+import logging
 from http.server import ThreadingHTTPServer
 from typing import Any
 
 
+def configure_logging() -> None:
+    """让 INFO 级结构化日志（含 datahub 影子对比报告）落到容器日志。"""
+    if logging.getLogger().handlers:
+        return
+    logging.basicConfig(
+        level=logging.INFO,
+        format="%(asctime)s %(levelname)s %(name)s %(message)s",
+    )
+
+
 def main(handler_class: type[Any] | None = None, service: Any | None = None) -> None:
+    configure_logging()
     if handler_class is None or service is None:
         from backend.application import RequestHandler, SERVICE