/feature-implement "<feature-slug>" [--unit <WU-N>]
Implements stubs until all tests pass. Idempotent — checks current test state on startup and resumes from first failing test rather than starting over. With --unit, scopes to a single work unit.
Idempotency pre-flight (ALWAYS FIRST)
Read .feature/<slug>/status.md.
Work unit resolution (check before anything else)
If work_units: none in status.md: ignore --unit flag, proceed as normal.
If work units are defined:
- If `-
[Description truncada. Veja o README completo no GitHub.]