feat: improve authentication and user management

- Fix token missing issue after email code registration/login
- Add last login time update for code-based login
- Support email login in addition to username login
- Fix password login for code-registered users (allow setting password)
- Fix referral code parameter passing from URL hash
- Add email column to user management table
- Improve profile page layout (align card heights, reorganize layout)
- Add i18n support for Register Bonus, Referral Bonus, Code Lock Minutes, Code Max Attempts
- Fix billing service add_credits to support reference_id parameter
- Update password handling documentation

quantdinger_vue/src/api/login.js

@@ -1,9 +1,9 @@
 import request from '@/utils/request'
 
 const userApi = {
-  Login: '/api/user/login',
-  Logout: '/api/user/logout',
-  UserInfo: '/api/user/info',
+  Login: '/api/auth/login',
+  Logout: '/api/auth/logout',
+  UserInfo: '/api/auth/info',
   UserMenu: '/user/nav'
 }