implement-statuslisted

# Implement status A read-only progress view for the detached `/implement` runner. The runner writes a structured run-state record under `docs/tdd/.implement-logs/<ts>/state.d/` (FR-27); this skill renders it. ## What you see The snapshot derives the rendered view fresh on each call from the per-TDD fragments — there is no second artifact that can drift from the record. It shows: - **Header** — mode (sequential / combined / parallel), integration branch, elapsed time, run state. - **Rollup** — `<completed> done / <total> · ~<P>% (estimate)` — the percent is always suffixed `(estimate)` and never reads 100% while any TDD is non-terminal (FR-30 honesty). Failed / blocked / skipped counts are reported separately when non-zero. - **Per-TDD table** — queue position, slug, status (`pending|building|verifying|reviewing|done|failed|blocked|skipped`), current stage (`build|test-first|verify|verify-runtime|review|flip`), and the TDD's branch / PR URL when known. - **Current focus** — the in-progress TDD and its stage, when a TDD is non-terminal. If no `/implement` run is active, the skill says so plainly and (if a previous run exists) summarizes the last run's final state. It never reports false progress. ## Halted runs When the most recent run is halted (state `paused`, `blocked`, or `failed`), the snapshot switches to a one-screen halt context (FR-64): the halt cause from the closed enum, the triggering finding reference, and the deterministic next-action opt