Elo trajectories: a century of strength on every team page

buildRatings samples each WC team's rating along the full walk (yearly
historically, monthly since 2022) into elohistory.json (~72KB, 48
teams). Team pages plot it as a clean SVG line with year and rating
gridlines — Germany's century, 1908 → today, in one glance.

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

src/features/team/TeamProfilePage.tsx

@@ -1,6 +1,7 @@
 import { useEffect, useState } from 'react';
 import { Link, useParams } from '@tanstack/react-router';
 import { ArrowLeft, Shield, Star } from 'lucide-react';
+import { EloHistoryChart } from '@/components/EloHistoryChart';
 import { useFavoriteStore } from '@/stores/favoriteStore';
 import { Card, CardBody, CardHeader } from '@/components/ui/Card';
 import { Badge } from '@/components/ui/Badge';
@@ -101,6 +102,13 @@ export function TeamProfilePage() {
         </CardBody>
       </Card>
 
+      <Card>
+        <CardHeader><span className="font-display font-bold text-ink">{t.team.eloHistory}</span></CardHeader>
+        <CardBody>
+          <EloHistoryChart team={profile.team} />
+        </CardBody>
+      </Card>
+
       <div className="grid gap-5 md:grid-cols-[1.3fr_1fr]">
         <Card>
           <CardHeader><span className="font-display font-bold text-ink">{t.team.fixtures}</span></CardHeader>