修复 uni-app build 输出路径，--outDir 指向 car-wash-admin/static/h5

uni-app 忽略 vite.config.js 的 build.outDir，需通过 CLI 参数 --outDir
指定输出目录。同时清理 vite.config.js 中无效的 outDir 配置。

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

admin-h5/package.json

@@ -5,10 +5,10 @@
   "main": "main.js",
   "scripts": {
     "dev:h5": "uni",
-    "build:h5": "uni build",
-    "build:h5:dev": "uni build --mode development",
+    "build:h5": "uni build --outDir ../car-wash-admin/src/main/resources/static/h5",
+    "build:h5:dev": "uni build --mode development --outDir ../car-wash-admin/src/main/resources/static/h5",
     "dev": "uni",
-    "build": "uni build"
+    "build": "uni build --outDir ../car-wash-admin/src/main/resources/static/h5"
   },
   "dependencies": {
     "@dcloudio/uni-app": "3.0.0-alpha-5000020260104004",