# Deterministic phase runner implementation

Implemented `bin/task-phase-run`.

## Added
- `bin/task-phase-run`

## Updated
- `docs/task-phase-machine.md`
- `tsconfig.json`

## Behavior
- reads `STATE.md`
- refuses terminal phases
- validates required state fields
- builds a phase-specific prompt
- runs one bounded Pi pass
- requires `STATE.md` to be updated
- rejects unchanged phase
- rejects illegal transitions
- enforces post-phase gates
- writes run artifacts under `artifacts/phase-runs/<timestamp>/`

## Enforced examples
- `shape -> implement` requires done gate / exclusions / reality constraints / validation plan
- `implement -> verify` requires `Candidate done: yes`
- `verify -> review` requires `Validator status: pass` and evidence fields
- `review -> done` requires candidate done + validator pass, and revalidation pass if repair happened
- `repair -> verify` requires `Repair applied: yes`

## Validation
- `bun run typecheck` passes

## Note
This is a one-pass deterministic runner, not a full loop controller yet.
It is the enforcement core for the later multi-pass wrapper.