feedback5 WT: CONTRIBUTING.md (Chinese, English summary) — setup, targeted / golden / opt-in browser tests, the fidelity rules (official data + PRTS, [ASSUMED], no copyrighted text at length), commit and pull-request conventions, adding a 自选 operator per kits/README.md; ARCHITECTURE and README link it; docs-paths covers it

README.md

@@ -170,6 +170,7 @@ npm start          # 启动服务器：http://localhost:3000
 | [docs/WINDOWS.md](docs/WINDOWS.md) | Windows 便携包：怎么打一份「零安装」包（`scripts/make-windows-bundle.mjs`）、包里放了什么、授权注意事项 |
 | [docs/DESIGN.md](docs/DESIGN.md) | 架构与契约（英文）：技术栈、目录分工、网络协议、渲染与 UI、各次试玩后的规则修订 |
 | [docs/ARCHITECTURE.md](docs/ARCHITECTURE.md) | 代码地图（英文）：服务器、联机协议和前后端共用的战斗模拟，0.2.0 重构后的目录，数据流，黄金结果与导入边界，常见改动从哪里入手 |
+| [CONTRIBUTING.md](CONTRIBUTING.md) | 参与贡献：准备环境、运行测试、忠实原则、提交与 PR 约定、怎样添加自选干员（中文，末尾附英文摘要） |
 | [docs/SIM.md](docs/SIM.md) | 战斗模拟引擎参考（英文）：钩子、技能描述格式、职业默认行为 |
 | [docs/META.md](docs/META.md) | 对局与经济引擎（英文）：回合流程、商店、联防、最终攻势的实现细节 |
 | [docs/DATA.md](docs/DATA.md) | 由官方数据表生成的游戏数据（英文） |
@@ -226,6 +227,7 @@ GOLDEN_FULL=1 node --test test/golden.test.js           # 黄金结果：固定
 
 欢迎提 Issue 反馈 bug、与官方规则不一致的地方或改进建议，也欢迎提交 Pull Request：
 
+- 准备环境、运行测试、忠实原则和提交约定见 [CONTRIBUTING.md](CONTRIBUTING.md)。
 - 提交前请运行 `node --test`，并同步更新相关文档；文档使用简体中文，代码与注释使用英文。
 - 提交的代码将以 GPL-3.0-or-later 发布。
 - 请不要提交任何游戏素材文件（`public/assets/` 等目录已被 `.gitignore` 排除）。
@@ -241,3 +243,4 @@ An **unofficial, non-commercial fan remake** of Arknights' seasonal auto-chess t
 - **Play with friends:** create a co-op room and share the 4-letter key or the `?room=KEY` link. On a LAN, use the address printed at start; otherwise use a virtual-LAN tool, a tunnel or a VPS — see [docs/DEPLOY.md](docs/DEPLOY.md).
 - **Disclaimer:** not affiliated with or endorsed by Hypergryph or Yostar. All Arknights names, art, audio, text and data are © their respective owners and are **not** covered by this project's GPL licence. For study and personal non-commercial use only — no selling, paid distribution, paid servers or monetisation of any kind. Content will be removed on request of the rights holders. Provided "as is", without warranty.
 - **License:** code GPL-3.0-or-later ([LICENSE](LICENSE)); game assets excluded.
+- **Contributing:** [CONTRIBUTING.md](CONTRIBUTING.md) (an English summary at its end); the code map is [docs/ARCHITECTURE.md](docs/ARCHITECTURE.md).