feat: Grundriss-Feature, Listenansicht mit Bildern, Gewerbe-Label, Image-Pool

- Grundriss (FloorPlanSection): PropertyUnit.floorPlanUrl?, Property.floorPlanUrl?;
  FloorPlanSection in MatchDetail + PropertyDetail; FloorPlanUrlSection in NewListing-Formular
- Listenansicht (MatchCardCompact): horizontales Layout mit 120px Bildstreifen,
  Score-Badge, Asset-Label-Overlay, alle 3 grünen Punkte, Anfrage-Button
- Light Industrial → "Gewerbe" überall (NeedInput, NeedCardPreview, CriteriaReviewPanel,
  newListingConstants, MyListings, propertyHelpers)
- "Zum Originalinserat"-Button nur bei Maison-Work-Objekten
- Image-Pool: propertyImageResolver mit sequentiellem Pool-Index (keine doppelten Bilder),
  nur Innenaufnahmen, rotate()-Trick für Sub-Pools
- Overlay-Labels (Objekttyp + Stadtteil) in LocationPreview + IntelligenceMatchCard

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

src/components/new-listing/FloorPlanUrlSection.tsx

@@ -0,0 +1,33 @@
+import { Box, Card, TextField, Typography } from '@mui/material'
+
+interface Props {
+  floorPlanUrl: string
+  onFloorPlanUrlChange: (v: string) => void
+}
+
+export function FloorPlanUrlSection({ floorPlanUrl, onFloorPlanUrlChange }: Props) {
+  return (
+    <Card sx={{ p: 3, mb: 3 }}>
+      <Typography variant="subtitle2" sx={{ fontWeight: 700, mb: 0.5 }}>Grundriss (optional)</Typography>
+      <Typography variant="caption" color="text.secondary" sx={{ display: 'block', mb: 2 }}>
+        URL zu einem Grundrissbild — hilft Interessenten, sich die Fläche vorzustellen.
+      </Typography>
+      <TextField
+        label="Grundriss-URL"
+        value={floorPlanUrl}
+        onChange={e => onFloorPlanUrlChange(e.target.value)}
+        size="small"
+        fullWidth
+        placeholder="https://…"
+      />
+      {floorPlanUrl && (
+        <Box
+          component="img"
+          src={floorPlanUrl}
+          alt="Grundriss Vorschau"
+          sx={{ mt: 2, width: '100%', maxHeight: 300, objectFit: 'contain', borderRadius: 1, border: '1px solid rgba(0,0,0,0.08)', bgcolor: '#f8fafc' }}
+        />
+      )}
+    </Card>
+  )
+}

src/components/new-listing/index.ts

@@ -6,3 +6,4 @@ export { TechnicalDetailsSection } from './TechnicalDetailsSection'
 export { ImageUrlSection } from './ImageUrlSection'
 export { ContactSection } from './ContactSection'
 export { CreatedScreen } from './CreatedScreen'
+export { FloorPlanUrlSection } from './FloorPlanUrlSection'