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

.spec/specs/archive/2026-11-05_blog-5n-admin-deep-optimization/evidence/verify_t4.sh

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+set -euo pipefail
+cd "$(git rev-parse --show-toplevel)"
+node --check public/admin/deploy-status.js
+grep -q "deploy-status.js" public/admin/index.html
+grep -q "quick-dock" public/admin/index.html
+grep -q "manifest.webmanifest" public/admin/index.html
+grep -q "favicon.svg" public/admin/index.html
+[ -f docs/后台回滚指引.md ]
+grep -q "一句话版本" docs/后台回滚指引.md
+echo "verify_t4 OK"