Session 28: Parlay builder, line movement tracker, book comparison — 3 features, zero credits (1623 tests)

web/src/components/Slate.tsx

@@ -11,6 +11,10 @@ import { useAuth } from '@/contexts/AuthContext';
 import StatFilterPills from '@/components/StatFilterPills';
 import StreaksPanel from '@/components/StreaksPanel';
 import HotListPanel from '@/components/HotListPanel';
+// Session 28 — line-movement + book-comparison read-only panels. Both
+// self-hide when empty; free users see a top-3 teaser.
+import MoversPanel from '@/components/MoversPanel';
+import BestLinesPanel from '@/components/BestLinesPanel';
 
 /**
  * The Slate (Session 13).
@@ -762,6 +766,11 @@ export default function Slate({ initialTab = 'all', tier = 'free' }: SlateProps)
           an off-hours slate with no warm logs simply shows the games. */}
       <StreaksPanel sport={tab === 'all' ? 'nba' : tab} tier={tier} stat={activeStat} />
       <HotListPanel sport={tab === 'all' ? 'mlb' : tab} tier={tier} stat={activeStat} />
+      {/* Session 28 — market layers: how lines are MOVING and where the
+          BEST price sits. Both read cached data (zero credits) and
+          self-hide until there's something to show. */}
+      <MoversPanel sport={tab === 'all' ? 'mlb' : tab} tier={tier} />
+      <BestLinesPanel sport={tab === 'all' ? 'mlb' : tab} tier={tier} />
 
       {/* Session 24 — removed the developer-facing "odds endpoint not
           configured yet" footer note. A sport with no data simply doesn't