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_t8.sh

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+set -euo pipefail
+cd "$(git rev-parse --show-toplevel)"
+export PATH="$HOME/.local/node/bin:$PATH"
+python3 scripts/build-perf/config-check.py . | grep -q 全部通过
+grep -q "上传后构建自动优化" public/admin/config.yml
+grep -q "媒体" docs/管理台.md
+echo "verify_t8 OK"