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/dashboard/page.tsx

@@ -9,6 +9,8 @@ import { GradePill } from '@/components/GradeCard';
 // existing dashboard sections (Most Parlayed, Recent Reads) stay
 // below as intelligence layers on top of the raw odds.
 import Slate from '@/components/Slate';
+// Session 55 — the self-learning loop's track record, live in the header.
+import { AccuracyBadge } from '@/components/vyndr';
 
 type Sport = 'NBA' | 'MLB' | 'WNBA';
 
@@ -205,6 +207,10 @@ export default function DashboardPage() {
             {new Date().toLocaleDateString([], { weekday: 'long', month: 'short', day: 'numeric' }).toUpperCase()}
           </p>
         </div>
+        {/* Session 55 — the system's live track record. Self-hides while it has
+            no data; reads "LEARNING" until the settled sample is honest. */}
+        <div style={{ display: 'flex', gap: 10, alignItems: 'center', flexWrap: 'wrap' }}>
+          <AccuracyBadge variant="chip" />
         {tier === 'free' && scansRemaining != null && (
           <div
             className="mono"
@@ -220,6 +226,7 @@ export default function DashboardPage() {
             {scansRemaining}/5 READS · MO
           </div>
         )}
+        </div>
       </header>
 
       {/* Session 13 — Browse-first slate. Owns its own sport-tab UI,