Match center redesign: center-spine timeline + hero scoreboard + tabbed layout

Implements steps 1-3 of the Claude Design handoff:
- MatchTimeline: vertical center spine (home left, away right, minute
  pills on the rail), goal cards with parsed scorer/assist/running
  score, sub and booking chips, synthetic kick-off/half-time/full-time
  dividers; single left rail under the sm breakpoint
- matchEvents: pure ESPN commentary parser (scorer, assist, penalty,
  own goal, sub in/out, embedded score) with tests on real feed shapes
- Hero scoreboard: panel gradient + accent glow, smallcaps meta, mono
  score, stat chips (xG / POTM / attendance / referee; possession and
  shots while live); weather line stays for upcoming matches
- Sticky Summary/Timeline/Stats/Lineups sub-nav; all existing cards
  re-bucketed with no feature loss (in-play win prob, swing chart,
  xG race, shot map, momentum, odds movement, form, H2H, lineups)

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

src/lib/i18n/en.ts

@@ -113,6 +113,27 @@ export const en = {
     attendanceLine: "{stadium} · {n} spectators · referee {ref}",
     potm: "Player of the match",
     xgAttribution: "xG and ratings are FotMob estimates.",
+    tabs: {
+      summary: "Summary",
+      timeline: "Timeline",
+      stats: "Stats",
+      lineups: "Lineups",
+    },
+    keyMoments: "Key moments",
+    viewTimeline: "View full timeline",
+    kickOff: "Kick-off",
+    halfTime: "Half-time",
+    goal: "Goal",
+    ownGoal: "Own goal",
+    penalty: "Penalty",
+    assist: "Assist · {name}",
+    noGoalsYet: "No goals yet.",
+    chips: {
+      att: "Att",
+      ref: "Ref",
+      poss: "Poss",
+      shots: "Shots",
+    },
   },
   compare: {
     title: "Compare",