style: fix prettier formatting in assets.ts

根因：batchDeleteAssets 直接返回 response.data，当后端返回字段缺失或格式不一致时，
Drawer 中 operationResult.succeeded.length 会报 Cannot read properties of undefined (reading 'length')，
导致整个页面白屏崩溃。

修复：
1. API 层新增 normalizeBatchResult()，统一归一化4个批量操作返回值，succeeded/failed 缺失时默认空数组
2. AssetLibrary 组件层增加 Array.isArray 防御，apiAssets / apiLibraries 非数组时兜底为空数组
3. 覆盖场景：删除全部素材、删除部分素材、删除后再上传，均不会白屏

apps/web/src/api/assets.ts

@@ -390,6 +390,25 @@ export interface BatchOperationResult {
   failure_count: number;
 }
 
+/** 统一批量操作结果归一化，防御后端字段缺失或格式不一致 */
+const normalizeBatchResult = (
+  raw: Record<string, unknown>,
+): BatchOperationResult => {
+  const succeeded = Array.isArray(raw.succeeded)
+    ? (raw.succeeded as string[])
+    : [];
+  const failed = Array.isArray(raw.failed) ? (raw.failed as string[]) : [];
+  const success_count =
+    typeof raw.success_count === "number"
+      ? raw.success_count
+      : succeeded.length;
+  const failure_count =
+    typeof raw.failure_count === "number" ? raw.failure_count : failed.length;
+  const total =
+    typeof raw.total === "number" ? raw.total : success_count + failure_count;
+  return { succeeded, failed, total, success_count, failure_count };
+};
+
 /** 批量删除素材 */
 export const batchDeleteAssets = async (
   assetIds: string[],
@@ -397,7 +416,7 @@ export const batchDeleteAssets = async (
   const response = await apiClient.post("/assets/batch-delete", {
     asset_ids: assetIds,
   });
-  return response.data;
+  return normalizeBatchResult((response.data || {}) as Record<string, unknown>);
 };
 
 /** 批量打标签 */
@@ -407,7 +426,7 @@ export const batchTagAssets = async (data: {
   mode: "add" | "replace";
 }): Promise<BatchOperationResult> => {
   const response = await apiClient.post("/assets/batch-tag", data);
-  return response.data;
+  return normalizeBatchResult((response.data || {}) as Record<string, unknown>);
 };
 
 /** 批量改分类 */
@@ -416,7 +435,7 @@ export const batchClassifyAssets = async (data: {
   category: string;
 }): Promise<BatchOperationResult> => {
   const response = await apiClient.post("/assets/batch-classify", data);
-  return response.data;
+  return normalizeBatchResult((response.data || {}) as Record<string, unknown>);
 };
 
 /** 批量智能标记 */
@@ -425,5 +444,5 @@ export const batchMarkAssets = async (data: {
   smart_view: "recommended" | "caution" | "high_risk";
 }): Promise<BatchOperationResult> => {
   const response = await apiClient.post("/assets/batch-mark", data);
-  return response.data;
+  return normalizeBatchResult((response.data || {}) as Record<string, unknown>);
 };

apps/web/src/pages/assets/AssetLibrary.tsx

@@ -355,7 +355,10 @@ const AssetLibrary: React.FC = () => {
     staleTime: 60_000,
   });
 
-  const libraries = useMemo(() => apiLibraries.map(mapLibrary), [apiLibraries]);
+  const libraries = useMemo(
+    () => (Array.isArray(apiLibraries) ? apiLibraries : []).map(mapLibrary),
+    [apiLibraries],
+  );
 
   /* ── 当前选中的素材库 ── */
   const [activeLibId, setActiveLibId] = useState<string>("");
@@ -377,7 +380,10 @@ const AssetLibrary: React.FC = () => {
     staleTime: 30_000,
   });
 
-  const assets = useMemo(() => apiAssets.map(mapAsset), [apiAssets]);
+  const assets = useMemo(
+    () => (Array.isArray(apiAssets) ? apiAssets : []).map(mapAsset),
+    [apiAssets],
+  );
 
   /* ── Mutations ── */
   const createLibMutation = useMutation({