Session 52: Coming Soon teaser + infrastructure verification (2239 tests)

Phase 1 — Push-to-Book teaser (feature not live; teaser only):
- StatStrip: "BOOK IT ⟶" per graded prop (hover: "Push-to-Book coming soon").
- GradeResultCard: "PUSH-TO-BOOK · COMING SOON" footer.

Phase 2 — infrastructure verification:
- snapshotScheduler logs armed AND disarmed state (incl SNAPSHOT_CRON) so
  container logs disambiguate off-vs-crashed.
- NEW GET /api/internal/snapshot/status (internal-key gated): cron_armed,
  cron_hours_utc, last_snapshot per sport (gradeCount/deltaCount), redis_keys
  existence map, ticker_count. The post-deploy pipeline health probe.
- Finding: Redis AOF/RDB persistence is a server-side (Coolify) config the app
  can't set/verify — documented.

Phase 3 — delta pipeline (verified sound, no fix needed):
- runSnapshot already rotates :latest->:previous and diffs locked lines; added
  opt-in SNAPSHOT_DEBUG=1 [deltas] log + a trace test asserting :previous is
  preserved verbatim and the delta math is correct.

Backend 2234 -> 2239 tests (+5), 192 suites. Web build clean (exit 0).

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

web/src/components/vyndr/GradeResultCard.tsx

@@ -274,6 +274,16 @@ export default function GradeResultCard({
         <VBtn variant="outline" style={{ flex: 1 }} onClick={() => onAddToParlay && onAddToParlay(d)}>+ Add to Parlay</VBtn>
         {onReadAnother && <VBtn variant="ghost" small onClick={onReadAnother}>Read Another →</VBtn>}
       </div>
+
+      {/* 10. PUSH-TO-BOOK teaser (Session 52) — feature not live yet. */}
+      <div style={{ borderTop: '1px solid var(--border)', padding: '12px 20px 16px', textAlign: 'center', background: 'var(--bg-2)' }}>
+        <span className="mono" style={{ color: 'var(--text-2)', fontSize: 11, letterSpacing: '0.06em' }}>
+          PUSH-TO-BOOK · COMING SOON
+        </span>
+        <div style={{ fontSize: 12, color: 'var(--text-1)', marginTop: 4 }}>
+          One tap from grade to bet slip. Connect DraftKings, FanDuel, BetMGM.
+        </div>
+      </div>
     </div>
   );
 }

web/src/components/vyndr/StatStrip.tsx

@@ -82,6 +82,19 @@ export default function StatStrip({
       </button>
     );
   };
+  // Session 52 — Push-to-Book teaser on graded props (feature not live yet).
+  const BookItTeaser = ({ p }: { p: StripProp }) => {
+    if (!p.grade) return null;
+    return (
+      <span
+        className="mono"
+        title="Push-to-Book coming soon — connect your sportsbook"
+        style={{ fontSize: 9, fontWeight: 700, letterSpacing: '0.06em', color: 'var(--text-2)', cursor: 'default', padding: '2px 5px', borderRadius: 4, border: '1px solid var(--border)', opacity: 0.6 }}
+      >
+        BOOK IT ⟶
+      </span>
+    );
+  };
   const last10Str = typeof last10 === 'string'
     ? last10
     : Array.isArray(last10)
@@ -172,6 +185,7 @@ export default function StatStrip({
                   <span className="mono" style={{ display: 'inline-flex', alignItems: 'center', gap: 6, fontSize: 11, color: '#B8BCC8' }}>
                     {p.stat} {p.side}{p.line} {p.grade && <GradeBadge grade={p.grade} size="sm" />}
                     <ParlayBtn p={p} />
+                    <BookItTeaser p={p} />
                   </span>
                 </span>
               ))}
@@ -196,6 +210,7 @@ export default function StatStrip({
                     <span style={{ color: '#fff' }}>{p.stat} {p.side}{p.line}</span>
                     {p.grade && <GradeBadge grade={p.grade} size="sm" />}
                     <ParlayBtn p={p} />
+                    <BookItTeaser p={p} />
                     {p.gradedAt?.ago && (
                       <span style={{ color: 'var(--text-2)' }}>
                         Graded {p.gradedAt.ago}{p.gradedAt.odds != null ? ` at ${p.gradedAt.odds}` : ''}