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/anfragencenter/RelatedPropertyCardPanel.tsx

@@ -60,7 +60,7 @@ export function RelatedPropertyCardPanel({ propertyId, inquiryId }: RelatedPrope
           height: 140,
           borderRadius: 1.5,
           overflow: 'hidden',
-          bgcolor: '#e2e8f0',
+          bgcolor: '#e8e7e4',
           display: 'flex',
           alignItems: 'center',
           justifyContent: 'center',
@@ -203,7 +203,7 @@ function AdditionalMatchCard({ match }: { match: AdditionalPropertyMatch }) {
           size="small"
           endIcon={<ArrowRight size={11} />}
           onClick={() => navigate('/supply/properties')}
-          sx={{ textTransform: 'none', fontSize: '0.7rem', mt: 0.5, p: 0, minWidth: 0, color: '#1e3a5f' }}
+          sx={{ textTransform: 'none', fontSize: '0.7rem', mt: 0.5, p: 0, minWidth: 0, color: '#152642' }}
         >
           Ansehen
         </Button>