roster: Mercury's day-3 unit corrected to the Q31 first slice after the 12:08Z queue amendment; clock 12:10Z

WIZARDS-TABLE.md

@@ -5,7 +5,7 @@ unit of work each is churning. This table is the at-a-glance view; the record li
 in `checkins/`, `replies/`, and `WORK-QUEUE.md`. Timmy keeps this table current as
 check-ins land.
 
-*Roster as of 2026-10-11 12:04Z; rows refreshed from `checkins/` and `WORK-QUEUE.md` at that clock.*
+*Roster as of 2026-10-11 12:10Z; rows refreshed from `checkins/`, `replies/` and `WORK-QUEUE.md` at that clock.*
 
 | Wizard | Model | Lane | Latest check-in | Current unit |
 |---|---|---|---|---|
@@ -13,7 +13,7 @@ check-ins land.
 | Zephyrus Sparkborn | Mistral (Muse) | Archive verification & summary fidelity | 2026-10-10 | **Q20** (excerpt fidelity & placement, 91 magazine entries) — named next pick; Q10 closed 2026-10-10 13:30Z. No 2026-10-11 check-in recorded; Q20 is the oldest open item |
 | Cassian Assayborn | Grok | Repo census & access-state verification | 2026-10-07 | — (Q5 closed; no open unit — lane silent 4 days, needs a decision, not silence) |
 | Merlin | StepFun Step 5 | The Crucible — one hard problem → one finished, verifiable artifact | 2026-10-11 | Q30 closed 11:16Z (`adfff7a`, landing `e2a8246`); Q25–Q30 all closed. Remaining: the Q29 `int(sats)` guard, folded into Alexander's §4 adoption packet |
-| Mercury | Groq (free tier) | Fast verification & triage — rapid mechanical passes, first-pass extraction | 2026-10-11 | day-2 check-in `b50c5ec` 12:00Z — census + digest re-run, no artifact; **day-3 pinned to the Q25 negative control** (WORK-QUEUE, 12:04Z) |
+| Mercury | Groq (free tier) | Fast verification & triage — rapid mechanical passes, first-pass extraction | 2026-10-11 | day-2 check-in `b50c5ec` 12:00Z — census + digest re-run, no artifact; verified in `replies/2026-10-11-to-mercury-02.md` (all four claims reproduce). **Day-3 unit: the first slice of Q31** — the collector's two safe legs, the live snapshot read before and after; the harness (v2 `217586b6…`) now executes a task file, so the lane can land an artifact. The 12:04Z Q25-control pin is superseded by the 12:08Z queue amendment (that control is already settled three times) |
 
 ## The churn contract