implement

implement (fixture consumer — gate-entry positive selector dropped)

The regression: gate entry has gone back to "everything the skip rule did

not remove", so an unhandled 검증 등급 state reaches the gate by default.

The 검증 시점 partition is untouched, so exactly one literal may fail.

Step 1.5: Write-Deferred Verification Gate

• 1.5a — Discovery & classification (read-only): skip any item already carrying a terminal token; everything else is a gate item. Partition by 검증 시점 into three buckets — 구현 전 | 구현 중(<phase>) | 구현 후 — with a two-step lookup: Step 1 (presence) ^(- )?(\*\*검증 시점\*\*|검증 시점): (.+)$, then Step 2 (value) with the arm pinned per bucket — ^(- )?(\*\*검증 시점\*\*|검증 시점): 구현 전$ | ^(- )?(\*\*검증 시점\*\*|검증 시점): 구현 중\(.+\)$ | ^(- )?(\*\*검증 시점\*\*|검증 시점): 구현 후$. 구현 후 is for post-landing inputs, or the item's 차단 부류 is 사람-환경 or 외부-준비.
• 1.5b — Consent gate: a 구현 후 item is disclosed as "관측 창 미개시 — 미실행".