fix: 使用环境变量设置baseurl

frontend/src/env.d.ts

@@ -1,9 +1,8 @@
-/// <reference types="vite/client" />
+/// <reference types="react-scripts" />
 
-interface ImportMetaEnv {
-  readonly VITE_API_BASE_URL: string
-}
-
-interface ImportMeta {
-  readonly env: ImportMetaEnv
+declare namespace NodeJS {
+  interface ProcessEnv {
+    readonly REACT_APP_API_BASE_URL: string;
+    // Add other environment variables here
+  }
 } 

frontend/src/services/api.ts

@@ -1,7 +1,7 @@
 import axios from 'axios';
 import { File, FileUploadResponse } from '../types/file';
 
-const API_BASE_URL = import.meta.env.VITE_API_BASE_URL || 'http://localhost:8000/api/v1';
+const API_BASE_URL = process.env.REACT_APP_API_BASE_URL || 'http://localhost:8000/api/v1';
 
 // Create axios instance with default config
 const axiosInstance = axios.create({