feat: 批量充值抽离独立页面 + 餐品档案定价区改造 + 账户交互优化

- din-user-recharge.html 新增（从 din-user-mgmt.html 弹窗抽离，含筛选/候选表/配置区/汇总栏）
- din-user-mgmt.html 清理批量充值弹窗 CSS/JS/HTML，「批量充值」按钮改为跳转
- din-dish-add/all/own.html 定价区改造 + 成本核算按钮修复 + 营养指标精简
- din-user-account.html 支付方式精简为微信/现金/支付宝
- me-account.html 姓名行增加可编辑态
- index.html SITE_MAP 新增「批量充值」入口
- CHANGELOG 同步记录

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

index.html

@@ -294,6 +294,7 @@ const SITE_MAP = [
       { file:'sup-biz-analysis.html', label:'加工经营分析' },
       { file:'sup-process-analysis.html', label:'加工分析' },
       { file:'din-user-mgmt.html', label:'用户管理' },
+      { file:'din-user-recharge.html', label:'批量充值' },
       { file:'din-dish-all.html', label:'菜品总库' },
       { file:'din-dish-own.html', label:'自有餐品库' },
       { file:'din-dish-all-dialog.html', label:'菜品总库弹窗', dialog:true },