feat: stronger visual scoring differentiation + streak fix

- Exakt cards: gold glow border, gold banner, trophy emoji, larger animated badge
- Tendency: green accent (was blue), clearer differentiation from Exakt
- Falsch: muted gray, reduced opacity — clearly "lost"
- Profile tip history: solid gold/green/gray badges with distinct borders
- Streak: remove utc_date <= NOW() filter so dev-finished matches count; handle PostgreSQL boolean serialization

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/src/pages/ProfilePage.module.css

@@ -186,9 +186,21 @@
   color: var(--text-muted);
 }
 
-.badgeExact   { background: rgba(255,196,0,0.15);  color: var(--gold); }
-.badgeTendency { background: rgba(34,197,94,0.15);  color: var(--success); }
-.badgeWrong   { background: rgba(239,68,68,0.12);  color: var(--error); }
+.badgeExact {
+  background: linear-gradient(135deg, #FEAE32, #FFD700);
+  color: #1a1a1a;
+  box-shadow: 0 0 8px rgba(254,174,50,0.35);
+}
+.badgeTendency {
+  background: rgba(34,197,94,0.22);
+  color: #4ade80;
+  border: 1px solid rgba(34,197,94,0.30);
+}
+.badgeWrong {
+  background: var(--surface-high);
+  color: var(--text-muted);
+  border: 1px solid var(--border-subtle);
+}
 
 /* ── Fun stats ── */
 .funStats { display: flex; flex-direction: column; gap: 12px; }