✨ feat(driver): 新增 OceanBase 与 OpenGauss Agent 数据源

- 数据源支持：新增 OceanBase 与 OpenGauss optional driver-agent 实现
- 连接适配：复用 MySQL/PostgreSQL 兼容链路并补齐查询、DDL、同步能力
- 前端入口：补充连接表单、侧边栏、图标、SQL 方言和危险操作识别
- 驱动管理：更新 driver manifest、安装提示和 revision 自动生成链路
- 构建发布：支持多平台 driver-agent 打包并优化 release 构建失败提示

frontend/src/components/DataSyncModal.tsx

@@ -50,7 +50,7 @@ const quoteSqlIdent = (dbType: string, ident: string): string => {
   const raw = String(ident || '').trim();
   if (!raw) return raw;
   const t = String(dbType || '').toLowerCase();
-  if (t === 'mysql' || t === 'mariadb' || t === 'diros' || t === 'sphinx' || t === 'clickhouse' || t === 'tdengine') {
+  if (t === 'mysql' || t === 'mariadb' || t === 'oceanbase' || t === 'diros' || t === 'sphinx' || t === 'clickhouse' || t === 'tdengine') {
     return `\`${raw.replace(/`/g, '``')}\``;
   }
   if (t === 'sqlserver') {