chore(spec): 归档 blog-5n——八任务收敛（后台深度优化全家桶）

Spec: 2026-11-05_blog-5n-admin-deep-optimization

Co-authored-by: GLM-5.3

tests/e2e.mjs

@@ -347,6 +347,18 @@ await d.addInitScript(() => localStorage.setItem('theme', 'dark'));
 await d.goto(BASE + '/gallery/', { waitUntil: 'networkidle' });
 await d.screenshot({ path: `${SHOTS}/12-gallery-dark.png`, fullPage: true });
 
+// 5n：后台页面资产（预登录态即可断言——脚本/链接/速通坞在登录前就挂载）
+{
+  await page.goto(BASE + '/admin/', { waitUntil: 'networkidle' });
+  const adminHtml = await page.content();
+  ok('5n·后台三脚本接线（bundle+排版+预览+状态条）',
+    adminHtml.includes('sveltia-cms.js') && adminHtml.includes('preview-style.js') && adminHtml.includes('deploy-status.js'));
+  ok('5n·速通坞五入口', (await page.locator('#quick-dock a').count()) === 5);
+  ok('5n·PWA manifest 挂载', adminHtml.includes('manifest.webmanifest'));
+  const stats = await page.request.get(BASE + '/admin/stats.html');
+  ok('5n·内容仪表盘可达', stats.status() === 200);
+}
+
 await browser.close();
 const fails = results.filter((r) => !r.pass).length;
 console.log(`\nE2E 汇总: ${results.length - fails}/${results.length} PASS${fails ? '，FAIL ' + fails : ''}`);