fix:test模式环境变量加载不正确问题

manifest.config.ts

@@ -4,8 +4,14 @@ import process from 'node:process'
 import { defineManifestConfig } from '@uni-helper/vite-plugin-uni-manifest'
 import { loadEnv } from 'vite'
 
+// 手动解析命令行参数获取 mode
+function getMode() {
+  const args = process.argv.slice(2)
+  const modeFlagIndex = args.findIndex(arg => arg === '--mode')
+  return modeFlagIndex !== -1 ? args[modeFlagIndex + 1] : args[0] === 'build' ? 'production' : 'development' // 默认 development
+}
 // 获取环境变量的范例
-const env = loadEnv(process.env.NODE_ENV!, path.resolve(process.cwd(), 'env'))
+const env = loadEnv(getMode(), path.resolve(process.cwd(), 'env'))
 const {
   VITE_APP_TITLE,
   VITE_UNI_APPID,