修复打包后读取不到.env文件，编写打包脚本

app/services/dify-client.server.ts

@@ -1,8 +1,14 @@
-import { CHAT_CONFIG } from '../config/chat';
+
 
 // 获取环境变量的服务端函数
 const getServerEnvVar = (name: string, defaultValue: string = '') => {
-    return process.env[name] || defaultValue;
+    const value = process.env[name] || defaultValue;
+    // console.log(`🌐 [DifyClient] 读取环境变量 ${name}:`, {
+    //     hasValue: !!process.env[name],
+    //     value: process.env[name] ? `${process.env[name].substring(0, 20)}...` : 'undefined',
+    //     usingDefault: !process.env[name]
+    // });
+    return value;
 };
 
 // Dify API 客户端配置
@@ -17,11 +23,12 @@ const DIFY_CONFIG = {
     })(),
 };
 
-// console.log('🔧 Dify Client Config:', {
-//     apiUrl: DIFY_CONFIG.API_URL,
-//     appId: DIFY_CONFIG.APP_ID,
-//     hasApiKey: !!DIFY_CONFIG.API_KEY
-// });
+console.log('🔧 Dify Client Config:', {
+    apiUrl: DIFY_CONFIG.API_URL,
+    appId: DIFY_CONFIG.APP_ID,
+    hasApiKey: !!DIFY_CONFIG.API_KEY,
+    configComplete: !!(DIFY_CONFIG.API_URL && DIFY_CONFIG.APP_ID && DIFY_CONFIG.API_KEY)
+});
 
 // 基础请求函数
 const difyFetch = async (endpoint: string, options: RequestInit = {}) => {