🧹 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/.github/actions/setup-node/action.yml

@@ -0,0 +1,40 @@
+name: 'Setup Node'
+
+description: 'Setup node and pnpm'
+
+runs:
+  using: 'composite'
+  steps:
+    - name: Install pnpm
+      uses: pnpm/action-setup@v4
+
+    - name: Install Node.js
+      uses: actions/setup-node@v4
+      with:
+        node-version-file: .node-version
+        cache: 'pnpm'
+
+    - name: Get pnpm store directory
+      shell: bash
+      run: |
+        echo "STORE_PATH=$(pnpm store path --silent)" >> $GITHUB_ENV
+
+    - uses: actions/cache@v4
+      name: Setup pnpm cache
+      if: ${{ github.ref_name == 'main' }}
+      with:
+        path: ${{ env.STORE_PATH }}
+        key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
+        restore-keys: |
+          ${{ runner.os }}-pnpm-store-
+
+    - uses: actions/cache/restore@v4
+      if: ${{ github.ref_name != 'main' }}
+      with:
+        path: ${{ env.STORE_PATH }}
+        key: |
+          ${{ runner.os }}-pnpm-store-
+
+    - name: Install dependencies
+      shell: bash
+      run: pnpm install --frozen-lockfile