🧹 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/workflows/semantic-pull-request.yml

@@ -0,0 +1,41 @@
+name: Semantic Pull Request
+
+on:
+  pull_request_target:
+    types:
+      - opened
+      - edited
+      - synchronize
+
+jobs:
+  main:
+    name: Semantic Pull Request
+    if: github.repository == 'vbenjs/vue-vben-admin'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Validate PR title
+        uses: amannn/action-semantic-pull-request@v5
+        with:
+          wip: true
+          subjectPattern: ^(?![A-Z]).+$
+          subjectPatternError: |
+            The subject "{subject}" found in the pull request title "{title}"
+            didn't match the configured pattern. Please ensure that the subject
+            doesn't start with an uppercase character.
+          requireScope: false
+          types: |
+            fix
+            feat
+            docs
+            style
+            refactor
+            perf
+            test
+            build
+            ci
+            chore
+            revert
+            types
+            release
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}