feat: premium redesign — DM Serif, refined palette, flat score badges

- Design tokens (ds.ts, theme.ts, scoreTheme.ts): new warm palette
  (#152642 navy, #f9f8f6 warm white, #e8e7e4 borders, #b8975a gold accent),
  flat score tier badges replacing CSS gradients, Inter + DM Serif Display typography
- Card components: white-background cards, DM Serif score numbers, max-2 badge
  chips with +N overflow tooltip, editorial score badge positioning
- Layout shell: gold left-accent nav active state, 64px top bar, outlined
  workspace chip, DM Serif page titles
- Shared atoms: GenericBadge (outlined/solid variants), ResultFilterBar
  (simplified chip styles), DecisionContextPanel (dot metrics, no left accent)
- Global replacement (118 files): #1e3a5f→#152642, #e2e8f0→#e8e7e4,
  #f4f6f9→#f9f8f6 — all handled via Node.js for proper UTF-8 safety

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

src/components/supply/ReminderFeed.tsx

@@ -25,7 +25,7 @@ const HORIZON_CONFIG: { key: FilterHorizon; label: string; color: string; bg: st
   { key: 'OVERDUE',    label: 'Überfällig',    color: '#dc2626', bg: '#fef2f2', border: '#fecaca' },
   { key: 'THIS_WEEK',  label: 'Diese Woche',   color: '#ea580c', bg: '#fff7ed', border: '#fed7aa' },
   { key: 'THIS_MONTH', label: 'Dieser Monat',  color: '#0369a1', bg: '#f0f9ff', border: '#bae6fd' },
-  { key: 'LATER',      label: 'Später',        color: '#64748b', bg: '#f8fafc', border: '#e2e8f0' },
+  { key: 'LATER',      label: 'Später',        color: '#64748b', bg: '#f8fafc', border: '#e8e7e4' },
 ]
 
 const LIST_COLS = '100px 130px 1fr 140px 90px 100px 90px'