🧹 清理重复配置文件

- 删除根目录中重复的 NestJS 配置文件
- 删除 tsconfig.json, tsconfig.build.json, eslint.config.mjs, .prettierrc
- 保留 wwjcloud-nest/ 目录中的完整配置
- 避免配置冲突，确保项目结构清晰

admin-vben/apps/backend-mock/package.json

@@ -0,0 +1,21 @@
+{
+  "name": "@vben/backend-mock",
+  "version": "0.0.1",
+  "description": "",
+  "private": true,
+  "license": "MIT",
+  "author": "",
+  "scripts": {
+    "build": "nitro build",
+    "start": "nitro dev"
+  },
+  "dependencies": {
+    "@faker-js/faker": "catalog:",
+    "jsonwebtoken": "catalog:",
+    "nitropack": "catalog:"
+  },
+  "devDependencies": {
+    "@types/jsonwebtoken": "catalog:",
+    "h3": "catalog:"
+  }
+}