🧹 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/pull_request_template.md

@@ -0,0 +1,33 @@
+## Description
+
+<!-- Please describe the change as necessary. If it's a feature or enhancement please be as detailed as possible. If it's a bug fix, please link the issue that it fixes or describe the bug in as much detail.
+
+ -->
+
+<!-- You can also add additional context here -->
+
+## Type of change
+
+Please delete options that are not relevant.
+
+- [ ] Bug fix (non-breaking change which fixes an issue)
+- [ ] New feature (non-breaking change which adds functionality)
+- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
+- [ ] This change requires a documentation update
+- [ ] Please, don't make changes to `pnpm-lock.yaml` unless you introduce a new test example.
+
+## Checklist
+
+> ℹ️ Check all checkboxes - this will indicate that you have done everything in accordance with the rules in [CONTRIBUTING](contributing.md).
+
+- [ ] If you introduce new functionality, document it. You can run documentation with `pnpm run docs:dev` command.
+- [ ] Run the tests with `pnpm test`.
+- [ ] Changes in changelog are generated from PR name. Please, make sure that it explains your changes in an understandable manner. Please, prefix changeset messages with `feat:`, `fix:`, `perf:`, `docs:`, or `chore:`.
+- [ ] My code follows the style guidelines of this project
+- [ ] I have performed a self-review of my own code
+- [ ] I have commented my code, particularly in hard-to-understand areas
+- [ ] I have made corresponding changes to the documentation
+- [ ] My changes generate no new warnings
+- [ ] I have added tests that prove my fix is effective or that my feature works
+- [ ] New and existing unit tests pass locally with my changes
+- [ ] Any dependent changes have been merged and published in downstream modules