Richer event context: buildup lines from the full play-by-play feed

'X is shown a red card' alone isn't insight — the story is in the
surrounding plays. The ESPN summary carries a ~110-line play-by-play
feed (attempts, fouls, corners, VAR checks) we cached but never used:

- normalizer keeps a trimmed commentary list (schema v3; the boot
  backfill re-stores older matches automatically)
- previews serve it; expanding a timeline event now shows up to four
  feed lines from the three minutes leading in, then the event's own
  description — e.g. Korea's saved attempt and corner right before
  Czechia's counter-goal header, or the foul behind a booking

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/features/match/MatchPreviewPage.tsx

@@ -370,7 +370,7 @@ export function MatchPreviewPage() {
       {tab === 'timeline' && preview.events.length > 0 && (
         <Card>
           <CardBody className="px-2 sm:px-4">
-            <MatchTimeline events={preview.events} status={f.status} minute={f.minute} homeScore={f.homeScore} awayScore={f.awayScore} />
+            <MatchTimeline events={preview.events} commentary={preview.commentary} status={f.status} minute={f.minute} homeScore={f.homeScore} awayScore={f.awayScore} />
           </CardBody>
         </Card>
       )}