feat: add settings tabs, auto backup, and show latest 5 backups

Co-authored-by: Cursor <cursoragent@cursor.com>

deploy/lib/common.sh

@@ -223,6 +223,8 @@ ensure_dotenv() {
   ensure_env_key "${envf}" "AUTH_SECRET" "鉴权密钥(disabled 关闭)" "change-me"
   ensure_env_key "${envf}" "ADMIN_USERNAME" "管理员用户名" "admin"
   ensure_env_key "${envf}" "ADMIN_PASSWORD" "管理员密码" "admin123"
+  ensure_env_key "${envf}" "BACKUP_AUTO_ENABLED" "自动备份 1/0" "1"
+  ensure_env_key "${envf}" "BACKUP_INTERVAL_HOURS" "自动备份间隔小时" "24"
   ensure_env_key "${envf}" "OKX_API_KEY" "OKX API Key(可空)" ""
   ensure_env_key "${envf}" "OKX_API_SECRET" "OKX API Secret(可空)" ""
   ensure_env_key "${envf}" "OKX_API_PASSPHRASE" "OKX Passphrase(可空)" ""