chore(cleanup): 清理历史会话遗留未跟踪产物 — gitignore 追加 + 文件归位

- .gitignore: 追加 .playwright-mcp/ 与 apps/miniprogram/.font_patch_tmp/ 两条忽略规则
- apps/miniprogram/scripts/: 新建目录, 迁入 TDesign BOM 修复脚本 inspect-wechat-font.ps1 及其检查报告
- 根目录 excel_analysis_report.txt / sheet_structure.txt 归位 tmp/, 修正 root-file 风险标签
- 审计记录 2026-04-20__legacy-untracked-cleanup-review.md, 含实际执行段与回滚路径
- audit_dashboard.md 由 gen_audit_dashboard.py 刷新至 130 条

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.gitignore

@@ -12,6 +12,12 @@ logs/
 *.log
 *.jsonl
 
+# Playwright MCP 浏览器日志与页面快照
+.playwright-mcp/
+
+# 小程序字体补丁临时目录
+apps/miniprogram/.font_patch_tmp/
+
 # ===== 审计文件 =====
 docs/audit/*
 # 白名单：允许追踪审计变更记录与仪表盘