v3: the lake processed + /data page + glossary terms

- scripts/processStatsbomb.ts: one pass over the 17GB StatsBomb lake (4,235
  matches) -> lakestats.json (12.82GB events / 14.9M events / 6,919 players),
  scorestate.json (goal-rate multipliers by game state — shipped as an insight,
  NOT wired into in-play: the raw effect is selection-biased toward stronger
  teams and would distort a calibrated model), fingerprints.json (40/48 nations'
  shots/xG/set-piece share from real event data). Artifacts committed; raw lake
  stays local (gitignored).
- /data page + /api/data/stats: the gigabytes made visible — lake counters,
  historical archive, live-collection counts (odds lines, frozen forecasts,
  enrichment), per-source health with freshness. Footer links.
- Term component: plain-language glossary tooltips (RPS, Brier, ECE, Elo, xG,
  de-vig, ensemble) attached where metrics appear.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/features/scoreboard/ScoreboardPage.tsx

@@ -3,6 +3,7 @@ import { Link } from '@tanstack/react-router';
 import { Scale } from 'lucide-react';
 import { PageHeader } from '@/components/ui/PageHeader';
 import { Card, CardBody, CardHeader } from '@/components/ui/Card';
+import { Term } from '@/components/ui/Term';
 import { teamFlag } from '@/lib/teams';
 import { kickoffDay, kickoffTime } from '@/lib/format';
 import { cn } from '@/lib/cn';
@@ -119,8 +120,9 @@ export function ScoreboardPage() {
             </p>
           )}
           <p className="mt-3 border-t border-line pt-2 text-xs text-faint">
-            Honest rules: both forecasts frozen pre-kickoff; bookmaker margin removed (de-vig); scored with the Ranked Probability
-            Score; late snapshots excluded. Beating the market over a small sample is noise — watch the gap, not the lead.
+            Honest rules: both forecasts frozen pre-kickoff; bookmaker margin removed (<Term k="de-vig" />); scored with the{' '}
+            <Term k="RPS">Ranked Probability Score</Term>; late snapshots excluded. Beating the market over a small sample is
+            noise — watch the gap, not the lead.
           </p>
         </CardBody>
       </Card>