补充资源预览错误正文回归测试

验证画布预览失败态展示宿主具体原因

apps/ai-game-creator-shell/tests/resourceCanvasPanelBatchTags.test.tsx

@@ -70,11 +70,12 @@ function renderPanel(
       onOpen: () => void;
     };
   } = {},
+  panelEntries = entries,
 ) {
   render(
     <ResourceCanvasPanelView
-      entries={entries}
-      selectedResourceIds={[entries[0]!.resourceId, entries[1]!.resourceId]}
+      entries={panelEntries}
+      selectedResourceIds={panelEntries.map((entry) => entry.resourceId)}
       onToggleEntry={vi.fn()}
       onSelectAll={vi.fn()}
       onClearSelection={vi.fn()}
@@ -131,4 +132,16 @@ describe('资源面板动作行的批量标签入口', () => {
     expect(panel.queryByRole('button', { name: '批量标签' })).toBeNull();
     expect(panel.getByRole('button', { name: '清空选择' })).not.toBeNull();
   });
+
+  it('预览失败时保留宿主返回的具体正文', () => {
+    const failedEntry = {
+      ...entries[0]!,
+      previewStatus: 'failed' as const,
+      previewError: '媒体预览内容无效：base64 解码失败',
+    };
+    const panel = renderPanel({}, [failedEntry]);
+    expect(
+      panel.getByText('预览失败：媒体预览内容无效：base64 解码失败'),
+    ).toBeTruthy();
+  });
 });