Session 55: Self-learning loop + real-time layer (2274 tests)

Product overhaul core — the two transformative, differentiated systems:

Self-learning loop (Phase 2): outcomeService settles locked snapshot grades
against real MLB Stats API results → hit/miss/push, rolling accuracy by grade
tier (30d window). Idempotent, injectable, unit-tested. New GET /api/accuracy +
/api/ledger/accuracy + internal settle triggers + cron hook. AccuracyBadge
(dashboard/scan/landing) is honest — "LEARNING" below MIN_SAMPLE, never a fake
number. Settled HIT/MISS chips overlay the live slate.

Real-time layer (Phase 1): Slate silent 60s auto-refresh (no flash, no wipe on
transient blips) + "SIGNAL LIVE · UPDATED Xs ago" freshness strip; Ticker LIVE
badge that flashes on fresh events.

Landing (Phase 3): TopSignals shows tonight's real top-3 A-rated grades + live
accuracy — the product shown, not described.

Founder pricing: FOUNDER_CODE_EXPIRY default 2026-06-30 → 2026-12-31 (had
lapsed, disabling every founder code + the ClaimMeter pitch). That expiry — not
a tier change — was the real cause of the 4 stripe test failures.

Backend 2255 (4 failing) → 2274 (all green; +19 new, +4 fixed). Web build exit 0.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

web/src/app/page.tsx

@@ -5,6 +5,9 @@ import { useRouter } from 'next/navigation';
 import { useAuth } from '@/contexts/AuthContext';
 import Hero from '@/components/Hero';
 import { ClaimMeter } from '@/components/vyndr';
+// Session 55 — live top A-rated grades pulled from tonight's real snapshot,
+// with the self-learning loop's accuracy line. The product shown, not described.
+import TopSignals from '@/components/TopSignals';
 // Session 17 — game-count strip mounted between the hero and the
 // existing LivePropsStrip. Shows "X NBA · Y WNBA · Z MLB games
 // being graded right now" with a signup CTA. Hides itself when
@@ -45,6 +48,8 @@ export default function Home() {
   return (
     <>
       <Hero />
+      {/* Session 55 — tonight's real top signals + live accuracy (the system works). */}
+      <TopSignals />
       {/* Founder-seat scarcity meter (§12) */}
       <div style={{ padding: '0 16px 8px' }}>
         <ClaimMeter />