dev-workflow

Standard R&D process orchestrator — guides the full development lifecycle from User Story to CD. Invoke when user says "start a new feature", "new requirement", "我要开发一个新功能", "开始需求", "next step?", "研发流程", or resumes work on an existing feature. Also invoke proactively when any non-trivial feature work begins, even if the user just says "let's build X". Do NOT invoke for one-off bug fixes, hotpatches, or purely…