feat.在线安装器，更好的Issue与pull request模板。

.github/pull_request_template.md

@@ -1,34 +1,92 @@
-## Description
-Please include a summary of the changes and related context. Describe the "why" behind your changes.
+<!--
+感谢贡献 LanMountainDesktop。
+Thank you for contributing to LanMountainDesktop.
 
-## Type of change
-- [ ] 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 change)
-- [ ] Documentation update
+请不要在 PR、截图、日志或测试数据中提交 token、密钥、Cookie、真实账号、学生/班级个人信息或其他敏感内容。
+Do not include tokens, secrets, cookies, real accounts, student/class personal data, or other sensitive information in this PR, screenshots, logs, or test data.
+-->
 
-## Related Issues
-Fixes #(issue number)
+## 这个 PR 做了什么？ / What does this PR do?
 
-## Testing
-Please describe the testing you've done to verify the changes:
-- [ ] Built successfully
-- [ ] Tested on Windows
-- [ ] No new warnings or errors introduced
-- [ ] Backward compatible
+<!--
+用 2-5 句话说明改动内容和原因。请说明用户、开发者或维护者能得到什么。
+Describe the change and the reason in 2-5 sentences. Mention what users, developers, or maintainers get from it.
+-->
 
-## Screenshots/Videos (if applicable)
-If your changes include UI modifications, please attach screenshots or videos.
+## 相关 Issue / Related issues
 
-## Checklist
-- [ ] My code follows the project's style guidelines
-- [ ] 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 tested my changes thoroughly
-- [ ] New and existing unit tests pass locally with my changes
-- [ ] I have added tests that prove my fix is effective or that my feature works
+<!--
+如果可以关闭 Issue，请使用：
+Fixes #123
 
-## Additional context
-Add any other context about the PR here.
+If this closes an issue, use:
+Fixes #123
+-->
+
+## 影响范围 / Affected areas
+
+<!-- 勾选所有适用项。Check all that apply. -->
+
+- [ ] 桌面宿主 / Desktop host
+- [ ] 启动器、更新或安装 / Launcher, update, or installation
+- [ ] AirApp Runtime
+- [ ] 插件运行时或安装 / Plugin runtime or installation
+- [ ] Plugin SDK 或共享契约 / Plugin SDK or shared contracts
+- [ ] 设置、主题或外观 / Settings, theme, or appearance
+- [ ] 桌面组件系统 / Desktop component system
+- [ ] 构建、测试、CI 或打包 / Build, test, CI, or packaging
+- [ ] 文档或规格 / Documentation or specs
+
+## 行为、兼容性与迁移 / Behavior, compatibility, and migration
+
+<!--
+说明是否改变用户可见行为、设置持久化、文件格式、公共 API、Plugin SDK、共享契约、打包产物或跨平台行为。
+如果没有，请写“无 / None”。
+
+Describe whether this changes user-visible behavior, persisted settings, file formats, public APIs, Plugin SDK, shared contracts, packaged artifacts, or cross-platform behavior.
+If not, write "无 / None".
+-->
+
+## 验证 / Verification
+
+<!-- 勾选已完成项，并在下面补充实际命令、平台和结果。Check completed items and add commands, platforms, and results below. -->
+
+- [ ] `dotnet restore`
+- [ ] `dotnet build LanMountainDesktop.slnx -c Debug`
+- [ ] `dotnet test LanMountainDesktop.slnx -c Debug`
+- [ ] 手动运行桌面宿主 / Manually ran the desktop host
+- [ ] 验证插件安装、加载或 SDK 场景 / Verified plugin install, loading, or SDK scenarios
+- [ ] 验证 Windows / Verified on Windows
+- [ ] 验证 Linux / Verified on Linux
+- [ ] 验证 macOS / Verified on macOS
+- [ ] 未能运行的检查已说明原因 / Explained any checks that could not be run
+
+实际验证说明 / Verification details:
+
+```text
+
+```
+
+## 文档与 spec / Documentation and specs
+
+<!-- 勾选所有适用项。Check all that apply. -->
+
+- [ ] 本 PR 不需要更新文档或 `.trae/specs/` / No documentation or `.trae/specs/` update is needed
+- [ ] 已更新权威文档 / Updated source-of-truth documentation
+- [ ] 已新增或更新 `.trae/specs/<feature>/` / Added or updated `.trae/specs/<feature>/`
+- [ ] 已更新 SDK 迁移说明或共享契约说明 / Updated SDK migration or shared contract notes
+
+## UI 截图或录屏 / UI screenshots or videos
+
+<!--
+涉及 UI、主题、设置页、窗口生命周期或组件外观时，请附截图或录屏。
+Attach screenshots or videos when changing UI, theme, settings pages, window lifecycle, or component appearance.
+-->
+
+## 最终检查 / Final checklist
+
+- [ ] 我已自查代码和文档，移除了调试残留和无关改动。 / I self-reviewed the code and docs and removed debug leftovers and unrelated changes.
+- [ ] 我没有提交未脱敏的日志、凭据或个人信息。 / I did not commit unredacted logs, credentials, or personal information.
+- [ ] 如果改动涉及 UI，已遵守 `docs/VISUAL_SPEC.md` 和 `docs/CORNER_RADIUS_SPEC.md`。 / If this changes UI, it follows `docs/VISUAL_SPEC.md` and `docs/CORNER_RADIUS_SPEC.md`.
+- [ ] 如果改动涉及行为、流程、边界或命令，已同步对应文档。 / If this changes behavior, workflows, boundaries, or commands, the related docs are updated.
+- [ ] 如果改动涉及新功能或行为调整，已补齐或更新 `.trae/specs/`，或说明无需更新的原因。 / If this adds a feature or behavior change, `.trae/specs/` is updated, or the reason for not updating is explained.