导出成功后把打包脚本的输出尾部报给用户

- useXhsMinitoolExport 的导出成功提示改为「已重新产出 .export/xhs-minitool.zip」加宿主的构建输出尾部：打包脚本会把 zip 的条目数与体积打在那里，正是上传前要核对的数字。
- ArtifactsPane 的状态行改为保留换行，多行输出不再挤成一行。
- 新增一例前端用例：导出调用只带 projectPath，成功后 notice 同时含产物路径与脚本输出尾部。

apps/ai-game-creator-shell/src/view/project-development/export/state/useXhsMinitoolExport.ts

@@ -191,8 +191,13 @@ export function useXhsMinitoolExport({
     setNotice('');
     setFailure(null);
     try {
-      await runXhsMinitoolExportBuild(invoke, projectPath);
-      setNotice(`已重新产出 ${XHS_MINITOOL_ARTIFACT_RELATIVE_PATH}`);
+      const result = await runXhsMinitoolExportBuild(invoke, projectPath);
+      // 打包脚本会把 zip 的条目数与体积打在输出尾部，正是用户上传前要核对的数字。
+      setNotice(
+        [`已重新产出 ${XHS_MINITOOL_ARTIFACT_RELATIVE_PATH}`, result.outputTail]
+          .filter((line) => line.trim() !== '')
+          .join('\n'),
+      );
     } catch (error) {
       const structured = asXhsMinitoolFailure(error);
       if (structured) setFailure(failureState(structured));

apps/ai-game-creator-shell/src/view/project-development/export/tabs/xiaohongshu/ArtifactsPane.tsx

@@ -146,7 +146,10 @@ export function ArtifactsPane({
       ) : null}
 
       {downloadNotice || minitool.notice ? (
-        <p role="status" className="text-xs text-[#6f5848]">
+        <p
+          role="status"
+          className="whitespace-pre-wrap break-all text-xs text-[#6f5848]"
+        >
           {downloadNotice || minitool.notice}
         </p>
       ) : null}

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

@@ -273,6 +273,38 @@ describe('状态 hook', () => {
     );
   });
 
+  it('导出把打包脚本的输出尾部一并报给用户', async () => {
+    const invoke = vi.fn(async (command: string) => {
+      if (command === 'read_xhs_minitool_export') {
+        return { form: FORM, hasScript: true, contentHash: CONTENT_HASH };
+      }
+      return {
+        outputTail:
+          'zip 已生成：.export/xhs-minitool.zip（3 个条目，0.42 MiB）',
+      };
+    });
+    installTauriRuntime({ core: { invoke } });
+    const { result } = renderHook(() =>
+      useXhsMinitoolExport({
+        enabled: true,
+        projectPath: PROJECT_PATH,
+        submitTurn: vi.fn(async () => true),
+      }),
+    );
+    await waitFor(() => expect(result.current.form).toEqual(FORM));
+
+    await act(async () => {
+      await result.current.runExport();
+    });
+
+    expect(invoke).toHaveBeenCalledWith('run_xhs_minitool_export_build', {
+      projectPath: PROJECT_PATH,
+    });
+    expect(result.current.notice).toContain('.export/xhs-minitool.zip');
+    expect(result.current.notice).toContain('3 个条目');
+    expect(result.current.running).toBe(false);
+  });
+
   it('适配把指令当成一条用户消息交给同一个会话', async () => {
     const submitTurn = vi.fn(async () => true);
     installTauriRuntime({