✨ feat(elasticsearch): 补齐新建连接入口

- 前端连接弹窗新增 Elasticsearch 入口、默认端口、URI 示例和默认索引配置

- 补齐 Elasticsearch 图标、数据源能力、SQL dialect 和只读查询策略

- 后端驱动管理注册 Elasticsearch 版本、模块路径、构建标签和默认安装入口

- 增加连接展示、能力识别和驱动定义测试覆盖

frontend/src/utils/dataSourceCapabilities.test.ts

@@ -54,6 +54,24 @@ describe('dataSourceCapabilities', () => {
     });
   });
 
+  it('treats Elasticsearch as a queryable read-only datasource', () => {
+    expect(getDataSourceCapabilities({ type: 'elasticsearch' })).toMatchObject({
+      type: 'elasticsearch',
+      supportsQueryEditor: true,
+      supportsSqlQueryExport: false,
+      supportsCopyInsert: false,
+      supportsCreateDatabase: false,
+      supportsRenameDatabase: false,
+      supportsDropDatabase: false,
+      forceReadOnlyQueryResult: true,
+    });
+    expect(getDataSourceCapabilities({ type: 'custom', driver: 'elastic' })).toMatchObject({
+      type: 'elasticsearch',
+      supportsQueryEditor: true,
+      forceReadOnlyQueryResult: true,
+    });
+  });
+
   it('treats OceanBase Oracle protocol as Oracle capabilities', () => {
     expect(getDataSourceCapabilities({
       type: 'oceanbase',