feat: 安全增强 + 删除密码重置申请功能 + 登录提醒开关

安全增强:
- 新增 SSRF、XXE、模板注入、敏感路径探测检测规则
- security/constants.py: 添加新的威胁类型和检测模式
- security/threat_detector.py: 实现新检测逻辑

删除密码重置申请功能:
- 移除 /api/password_resets 相关API
- 删除 password_reset_requests 数据库表
- 前端移除密码重置申请页面和菜单
- 用户只能通过邮��找回密码，未绑定邮箱需联系管理员

登录提醒全局开关:
- email_service.py: 添加 login_alert_enabled 字段
- routes/api_auth.py: 检查开关状态再发送登录提醒
- EmailPage.vue: 添加新设备登录提醒开关

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

static/app/assets/auth-WsWSY0rn.js

@@ -0,0 +1 @@
+import{p as s}from"./index-CEOd73lG.js";async function r(){const{data:a}=await s.get("/email/verify-status");return a}async function o(){const{data:a}=await s.post("/generate_captcha",{});return a}async function e(a){const{data:t}=await s.post("/login",a);return t}async function i(a){const{data:t}=await s.post("/register",a);return t}async function c(a){const{data:t}=await s.post("/resend-verify-email",a);return t}async function f(a){const{data:t}=await s.post("/forgot-password",a);return t}async function u(a){const{data:t}=await s.post("/reset-password-confirm",a);return t}export{f as a,i as b,u as c,r as f,o as g,e as l,c as r};