fix: deploy crash + multiple bug fixes + cleanup

- server.js: fix getSiteName() returning string when not installed causing
  'getSiteName(...).then is not a function' crash on homepage (deploy blocker)
- server.js: auto-load business routes after install completes (no restart needed),
  HTML cache keyed by api_key
- install: validate db name/email/password, trigger route loading after complete
- app.js: fix forgot/reset/verify pages rendering HomePage (missing page mapping)
- verify.js: support URL token auto-verification for external registration links
- auth: new email_code template for 6-digit code, reset_password template
  (forgot-password was using verify_email template)
- upload.js: fix MP4 magic-bytes check using undefined buf variable
- tickets.js: status enum validation, anonymous submission rate limit
- security.js: XSS whitelist preserves email template HTML, strips scripts,
  blocks javascript:/data: hrefs; CORS reject returns 403
- bans.js: allow clearing reason/duration, status enum validation
- users.js: fix req.user.role ReferenceError in create user modal
- home.js: tracking results now have detail view button
- .gitignore: ignore data/ (db credentials), logs, session files, temp scripts

public/js/pages/install.js

@@ -97,7 +97,8 @@ const InstallPage = {
           admin_game_name: document.getElementById('ia-game').value,
           admin_game_uid: document.getElementById('ia-uid').value,
         });
-        document.getElementById('install-admin').innerHTML = '<div class="alert alert-s"><h3><i class="fas fa-check-circle"></i> 安装成功！</h3><p>配置已保存。请重启服务器后刷新页面。</p></div>';
+        document.getElementById('install-admin').innerHTML = '<div class="alert alert-s"><h3><i class="fas fa-check-circle"></i> 安装成功！</h3><p>系统已就绪，正在跳转登录...</p></div>';
+        setTimeout(() => location.hash = '#/login', 1500);
       } catch (ex) {
         document.getElementById('ia-err').textContent = ex.message;
         document.getElementById('ia-err').classList.remove('hidden');