fix/various fixes

api/app/core/storage_purge.py

@@ -0,0 +1,28 @@
+"""对象存储批量删除（尽力而为，不打断主流程）。"""
+
+from collections.abc import Iterable
+
+from app.core.logging import get_logger
+from app.ports.storage import ObjectStorage
+
+logger = get_logger(__name__)
+
+
+def delete_object_storage_keys_best_effort(
+    storage: ObjectStorage | None,
+    keys: Iterable[str],
+    *,
+    log_prefix: str,
+) -> None:
+    if storage is None:
+        return
+    seen: set[str] = set()
+    for raw in keys:
+        key = (raw or "").strip()
+        if not key or key in seen:
+            continue
+        seen.add(key)
+        try:
+            storage.delete(key)
+        except Exception as e:
+            logger.warning("%s: COS 删除失败 key=%s err=%s", log_prefix, key, e)