Read AGENTS.md first, then read every nested AGENTS.md between the repository
root and the file being changed. Those files are the canonical agent contract.
Do not infer project policy from local ignored .claude/ files.
先读取根 AGENTS.md，再读取目标路径上的嵌套 AGENTS.md。不要在本文件复制
项目规则，也不要把本机忽略的 .claude/ 内容当作仓库政策。