feat(knowledge): add knowledge base detail page components and hooks

refactor(knowledge): restructure knowledge detail page with new components
feat(components): add FileUploadDialog for file upload functionality
feat(hooks): implement document management hooks for CRUD operations

src/utils/request.ts

@@ -85,14 +85,19 @@ const request: AxiosInstance = axios.create({
 // 请求拦截器
 request.interceptors.request.use(
   (config: InternalAxiosRequestConfig) => {
-    // 转换数据格式
-    if (config.data) {
+    // 转换数据格式 - 跳过FormData对象
+    if (config.data && !(config.data instanceof FormData)) {
       config.data = convertTheKeysOfTheObjectToSnake(config.data);
     }
     if (config.params) {
       config.params = convertTheKeysOfTheObjectToSnake(config.params);
     }
 
+    // 对于FormData，删除默认的Content-Type让浏览器自动设置
+    if (config.data instanceof FormData) {
+      delete config.headers['Content-Type'];
+    }
+
     // 添加授权头
     const authorization = getAuthorization();
     if (authorization && !config.headers?.skipToken) {