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/PropertyDetailOverview.tsx

@@ -138,8 +138,8 @@ export function PropertyDetailOverview({ p, editing, draft, onDraftChange }: Pro
           {/* Mietvertrag */}
           <Box sx={{ mt: 1.5, p: 1.5, border: '1px solid #e2e8f0', borderRadius: 1.5, bgcolor: p.leaseContractUrl ? '#f8fafc' : '#fafafa' }}>
             <Box sx={{ display: 'flex', alignItems: 'center', gap: 0.75, mb: p.leaseContractUrl ? 0.75 : 0 }}>
-              <FileText size={13} color={p.leaseContractUrl ? '#1e3a5f' : '#94a3b8'} />
-              <Typography variant="caption" sx={{ fontWeight: 700, color: p.leaseContractUrl ? '#1e3a5f' : '#94a3b8', textTransform: 'uppercase', letterSpacing: 0.4 }}>
+              <FileText size={13} color={p.leaseContractUrl ? '#152642' : '#94a3b8'} />
+              <Typography variant="caption" sx={{ fontWeight: 700, color: p.leaseContractUrl ? '#152642' : '#94a3b8', textTransform: 'uppercase', letterSpacing: 0.4 }}>
                 Mietvertrag
               </Typography>
             </Box>
@@ -155,7 +155,7 @@ export function PropertyDetailOverview({ p, editing, draft, onDraftChange }: Pro
                   href={p.leaseContractUrl}
                   target="_blank"
                   rel="noopener noreferrer"
-                  sx={{ textTransform: 'none', fontSize: '0.7rem', py: 0.25, px: 1, borderColor: '#cbd5e1', color: '#1e3a5f', whiteSpace: 'nowrap', flexShrink: 0 }}
+                  sx={{ textTransform: 'none', fontSize: '0.7rem', py: 0.25, px: 1, borderColor: '#cbd5e1', color: '#152642', whiteSpace: 'nowrap', flexShrink: 0 }}
                 >
                   Öffnen
                 </Button>