Per-sport rank guard + edge diagnostic-only display + delta report

DELTA MEASURED on live prod grades (live ordering unchanged): MLB 7/8
props move (87.5%), mean 2.5 places, TOP READ CHANGES (corey seager hits
1.5 under -> jake burger hits 0.5 over). WNBA 25/25 move, mean 4.1, max 12.
This is a large re-ordering, not a tweak.

Caveat recorded rather than buried: MLB had only 8 graded props at
measurement time. The percentages are real; the sample is one small slate.
Re-run before the flip -- it is one call.

PER-SPORT DOCTRINE ENFORCED IN CODE. WNBA moves the most and must NOT
adopt this: its p_win is anti-predictive, so ranking that board by p_win
would sort it by a signal measured to point the WRONG WAY -- worse than
the incumbent, not better. A comment would not have stopped a future flip
from going global, so FORECAST_RANKED_SPORTS = Set(['mlb']) gates the
forecast_rank stamp, with tests asserting no sport inherits MLB's result.
A sport joins only by passing its own holdout.

EDGE IS NOW DIAGNOSTIC-ONLY IN DISPLAY. MobileEdgeBoard.EdgeCell rendered
green (--g-a) for positive edge and red (--miss) for negative. Two things
were wrong: green/red IS a quality claim on a quantity that does not
predict, and ROW-GRAMMAR reserves red for settled-negative ONLY -- a
negative diagnostic is not a settled loss. Now neutral mono with a
diagnostic tooltip; header reads "MKT GAP · DIAGNOSTIC". The number is
still shown -- no display went blank. DeskShowcase neutralised likewise.

PINNACLE LOGGED, NOT ENSHRINED. Per the order, "market-not-sharp" is
PENDING-RECOVERY rather than a confirmed permanent limitation. The single
question for PropLine is in BLOCKERS.md with its evidence, and MASTER-PLAN
now carries the pending status instead of the permanent claim.

Live sorts remain byte-identical: selectTopGrades, flattenToEdgeBoard and
topGradedService all still call the incumbent.

Gates: 4,041 tests / 323 suites green; next build exit 0.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QJs13VsyiSKYQP6rj3NNmc

BLOCKERS.md

@@ -24,3 +24,22 @@
 **Workaround:** Apply migration via Supabase Dashboard SQL Editor
 **Resolution path:** Either DNS propagates, or add Supabase IP to /etc/hosts, or use `supabase link` with access token via api.supabase.com
 **Owner:** Kev
+
+
+## PINNACLE MLB PROP COVERAGE STOPPED — 2026-07-31 (open, external)
+
+**One question to PropLine:** *why did Pinnacle MLB player-prop coverage stop on
+2026-07-31?*
+
+**Evidence:** `closing_captures` MLB, pinnacle: 103,940 rows over 07-20 → 07-30,
+then **4,022 → 0** on 07-31 and zero since, while every other book continued
+normally (07-31: 47,606 non-pinnacle rows). `line_type='sharp'` is a label applied
+in `closingCapture.js` via `SHARP_BOOKS` — same feed, not a separate provider.
+
+**Why it matters:** Pinnacle is the only sharp anchor we have ever had for props
+(17,090 two-sided captures in that window). Without it the consensus ruler is a
+**market** consensus, not a **sharp** one.
+
+**Status:** `market-not-sharp` is **PENDING-RECOVERY, not confirmed permanent.**
+Do NOT enshrine it in MASTER-PLAN as a permanent limitation until this is
+answered. Not caused by any VYNDR change — the display widening only adds books.