Localize prompt defaults by locale

Add bilingual docs and frontend i18n

Revert "feat: add production summary logging, token tracking, and multi-profile API routing"

feat: add production summary logging, token tracking, and multi-profile API routing

feat: add 20min timeout defaults and stream upstream AI requests

feat: upload reference images and pass short URLs

feat: add usage dashboard and metrics usage rate limiting

优化：统一设置与提示词覆盖结构并打通渲染超时配置

修复重试终止逻辑并更新前端默认与提示词规范

优化过程等待UI 优化内存监控机制 支持参考图

重构：自定义 AI 调用统一走后端

新增二次编辑功能

增加自定义提示词管理系统 超时默认为10分钟 优化UI

Clean deploy