feat(image): 新建 knowai-core:1.0.0 镜像并完成推送

- 搭建 api、auth、utils 等逻辑模块
- 通过 tsc、eslint、vitest 测试验证

BREAKING CHANGE: 新镜像分支

api/index.ts

@@ -0,0 +1,19 @@
+// 导出API工厂函数和默认实例
+export { createApi, api } from './factory';
+
+// 导出API类型和配置
+export {
+  API_ENDPOINTS,
+  ApiStatusCode,
+  ApiErrorType,
+  DEFAULT_REQUEST_CONFIG,
+  DEFAULT_PAGINATION_CONFIG,
+  type ApiClient,
+  type ApiResponse,
+  type PaginatedResponse,
+  type ErrorResponse
+} from './types';
+
+// 向后兼容的导出
+export { apiClient } from './client';
+export { postApi, userApi, chatApi, modelApi } from './modules';