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/OwnPropertyMatchList.tsx

@@ -62,7 +62,7 @@ export function OwnPropertyMatchList({ need }: OwnPropertyMatchListProps) {
           flexShrink: 0,
         }}
       >
-        <Target size={14} color="#1e3a5f" />
+        <Target size={14} color="#152642" />
         <Typography variant="body2" sx={{ fontWeight: 600, color: '#0f172a' }}>
           Eigene Objekte
         </Typography>
@@ -72,7 +72,7 @@ export function OwnPropertyMatchList({ need }: OwnPropertyMatchListProps) {
             px: 1,
             py: 0.125,
             borderRadius: 1,
-            bgcolor: '#1e3a5f',
+            bgcolor: '#152642',
             color: 'white',
             fontWeight: 600,
             fontSize: '0.7rem',