octospec-workflow

Use when implementing a feature, fixing a bug, or making any non-trivial code change in this repository. Drives the octospec 4-phase engineering flow (Plan, Implement, Verify, Finish) so the change follows this repo's rules in .octospec/ and ships a PR with a linked spec. Triggers on requests like "add ...", "implement ...", "fix ...", "refactor ...", "change the ... API", 写功能, 修 bug, 加接口, 改逻辑. Skip for trivial…