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/factory.ts

@@ -0,0 +1,40 @@
+import { apiClient, createApiClient } from './client';
+import type { AxiosRequestConfig } from 'axios';
+import { postApi } from './modules/post';
+import { userApi } from './modules/user';
+import { chatApi } from './modules/chat';
+import { modelApi } from './modules/model';
+
+/**
+ * API 工厂函数，用于创建和管理 API 实例
+ * 提供统一的 API 访问入口和配置管理
+ */
+export const createApi = (config?: Partial<AxiosRequestConfig>) => {
+  const client = config ? createApiClient(config) : apiClient;
+
+  return {
+    // 核心客户端
+    client,
+
+    // API 模块 - 使用提供的客户端或默认客户端
+    modules: {
+      post: postApi(client),
+      user: userApi(client),
+      chat: chatApi(client),
+      model: modelApi(client)
+    },
+
+    // 便捷访问
+    post: postApi(client),
+    user: userApi(client),
+    chat: chatApi(client),
+    model: modelApi(client)
+  };
+};
+
+// 导出默认 API 实例
+export const api = createApi();
+
+// 向后兼容的导出
+export { apiClient } from './client';
+export { postApi, userApi, chatApi, modelApi } from './modules';