fix: tolerate OpenList move consistency lag

backend/imagefind/openlist_native.py

@@ -484,6 +484,28 @@ class OpenListNativeService:
     def _verified_object_size(client: AlistClient, path: str) -> int | None:
         return _object_size(client.object_info(path))
 
+    @classmethod
+    def _moved_object_converged(
+        cls,
+        client: AlistClient,
+        original: str,
+        target: str,
+        expected_size: int,
+        *,
+        attempts: int = 12,
+        delay_seconds: float = 0.25,
+    ) -> bool:
+        """Wait briefly for an eventually-consistent provider move to become visible."""
+
+        for attempt in range(attempts):
+            original_missing = client.object_info(original) is None
+            target_size = cls._verified_object_size(client, target)
+            if original_missing and target_size == expected_size:
+                return True
+            if attempt + 1 < attempts:
+                time.sleep(delay_seconds)
+        return False
+
     def trash_object(
         self,
         source_id: str,
@@ -508,15 +530,17 @@ class OpenListNativeService:
             # OpenList can finish a provider-side move after the control-plane
             # request times out. Resolve that ambiguous response from object
             # state before deciding whether compensation is required.
-            if client.object_info(original) is not None or self._verified_object_size(client, target) != expected_size:
+            if not self._moved_object_converged(client, original, target, expected_size):
                 raise
+        if self._moved_object_converged(client, original, target, expected_size):
+            if config.encrypted:
+                self.sources.rclone.stop(source_id)
+            return target
         if client.object_info(original) is not None:
             raise RuntimeError("OpenList 原生回收站移动后源对象仍然存在")
         if self._verified_object_size(client, target) != expected_size:
             raise RuntimeError("OpenList 原生回收站对象长度不一致")
-        if config.encrypted:
-            self.sources.rclone.stop(source_id)
-        return target
+        raise RuntimeError("OpenList 原生回收站移动状态未收敛")
 
     def restore_object(
         self,

tests/test_openlist_client.py

@@ -198,6 +198,29 @@ def test_native_trash_and_restore_verify_provider_state(ambiguous_timeout: bool)
     assert client.files == {"cloud/library/opaque.bin": 123}
 
 
+def test_native_trash_waits_for_eventually_consistent_provider(monkeypatch):
+    class EventuallyConsistentClient(_MovingClient):
+        stale_reads = 4
+
+        def object_info(self, path: str):
+            trash_path = "cloud/library/.imagefind-native-trash/trash-id/opaque.bin"
+            if self.stale_reads and path in {"cloud/library/opaque.bin", trash_path}:
+                self.stale_reads -= 1
+                if path == "cloud/library/opaque.bin":
+                    return {"name": "opaque.bin", "size": 123, "is_dir": False}
+                return None
+            return super().object_info(path)
+
+    monkeypatch.setattr("imagefind.openlist_native.time.sleep", lambda _seconds: None)
+    client = EventuallyConsistentClient({"cloud/library/opaque.bin": 123})
+    service = _native_service(client)
+
+    trash_path = service.trash_object("source", "trash-id", "cloud/library/opaque.bin", 123)
+
+    assert trash_path == "cloud/library/.imagefind-native-trash/trash-id/opaque.bin"
+    assert client.files == {trash_path: 123}
+
+
 def test_native_trash_restore_conflicts_are_non_destructive_and_purge_is_idempotent():
     trash_path = "cloud/library/.imagefind-native-trash/trash-id/opaque.bin"
     client = _MovingClient({"cloud/library/opaque.bin": 123, trash_path: 123})