feat: Marktsignale KPI panel with adjustable radius (5/10/15/20 km)

Adds MarketKpis domain type with formula-based radius scaling, a MarketKpiPanel
component (vacancy rate, platform searches, avg vacancy duration, demand/supply
ratio — color-coded with interpretation badges), and integrates it at the top of
PropertyMarketSignalsTab. Demand/supply section labels now update with the
selected radius. Mock data covers all 5 existing market reports.

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

src/components/supply/MarketKpiPanel.tsx

@@ -0,0 +1,198 @@
+import { useMemo } from 'react'
+import { Box, ToggleButton, ToggleButtonGroup, Typography } from '@mui/material'
+import { getKpisForRadius } from '../../domain/marketReport'
+import type { MarketKpis } from '../../domain/marketReport'
+
+interface Props {
+  baseKpis: MarketKpis
+  assetTypeLabel: string
+  radius: number
+  onRadiusChange: (r: number) => void
+}
+
+const RADII = [5, 10, 15, 20]
+
+function vacancyColor(pct: number): string {
+  if (pct < 4) return '#1a7a4a'
+  if (pct < 8) return '#d97706'
+  return '#dc2626'
+}
+
+function vacancyLabel(pct: number): string {
+  if (pct < 4) return 'Engpassmarkt'
+  if (pct < 8) return 'Ausgewogen'
+  return 'Überangebot'
+}
+
+function searchesColor(count: number): string {
+  if (count >= 15) return '#1a7a4a'
+  if (count >= 7) return '#d97706'
+  return '#dc2626'
+}
+
+function searchesLabel(count: number): string {
+  if (count >= 15) return 'Hohe Nachfrage'
+  if (count >= 7) return 'Moderate Nachfrage'
+  return 'Geringe Nachfrage'
+}
+
+function durationColor(months: number): string {
+  if (months < 4) return '#1a7a4a'
+  if (months < 7) return '#d97706'
+  return '#dc2626'
+}
+
+function durationLabel(months: number): string {
+  if (months < 4) return 'Schnell absorbiert'
+  if (months < 7) return 'Moderat'
+  return 'Träger Markt'
+}
+
+function ratioColor(ratio: number): string {
+  if (ratio >= 2) return '#1a7a4a'
+  if (ratio >= 1) return '#d97706'
+  return '#dc2626'
+}
+
+function ratioLabel(ratio: number): string {
+  if (ratio >= 2) return 'Nachfrageüberhang'
+  if (ratio >= 1) return 'Leicht ausgeglichen'
+  return 'Angebotsüberhang'
+}
+
+interface KpiCardProps {
+  label: string
+  value: string
+  badge: string
+  badgeColor: string
+}
+
+function KpiCard({ label, value, badge, badgeColor }: KpiCardProps) {
+  return (
+    <Box
+      sx={{
+        flex: 1,
+        minWidth: 0,
+        p: 1.5,
+        border: '1px solid #e2e8f0',
+        borderRadius: 1.5,
+        bgcolor: '#ffffff',
+        display: 'flex',
+        flexDirection: 'column',
+        gap: 0.5,
+      }}
+    >
+      <Typography variant="caption" sx={{ color: '#64748b', fontWeight: 500, fontSize: '0.7rem', lineHeight: 1.2 }}>
+        {label}
+      </Typography>
+      <Typography variant="body1" sx={{ fontWeight: 700, color: '#0f172a', lineHeight: 1 }}>
+        {value}
+      </Typography>
+      <Box
+        sx={{
+          display: 'inline-block',
+          px: 0.75,
+          py: 0.25,
+          borderRadius: 0.75,
+          bgcolor: `${badgeColor}18`,
+          alignSelf: 'flex-start',
+          mt: 0.25,
+        }}
+      >
+        <Typography sx={{ fontSize: '0.65rem', fontWeight: 600, color: badgeColor, lineHeight: 1.4 }}>
+          {badge}
+        </Typography>
+      </Box>
+    </Box>
+  )
+}
+
+export function MarketKpiPanel({ baseKpis, assetTypeLabel, radius, onRadiusChange }: Props) {
+  const kpis = useMemo(
+    () => radius === 5 ? baseKpis : getKpisForRadius(baseKpis, radius),
+    [baseKpis, radius]
+  )
+
+  return (
+    <Box
+      sx={{
+        mb: 2.5,
+        p: 1.75,
+        border: '1px solid #e2e8f0',
+        borderRadius: 2,
+        bgcolor: '#f8fafc',
+      }}
+    >
+      <Box sx={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between', mb: 1.5 }}>
+        <Box>
+          <Typography variant="body2" sx={{ fontWeight: 700, color: '#0f172a', fontSize: '0.8125rem' }}>
+            Marktumfeld — {assetTypeLabel}
+          </Typography>
+          <Typography variant="caption" sx={{ color: '#94a3b8' }}>
+            Vergleichbare Flächen im Umkreis
+          </Typography>
+        </Box>
+        <ToggleButtonGroup
+          value={radius}
+          exclusive
+          onChange={(_, v) => v !== null && onRadiusChange(v)}
+          size="small"
+          sx={{
+            '& .MuiToggleButton-root': {
+              py: 0.25,
+              px: 0.875,
+              fontSize: '0.7rem',
+              textTransform: 'none',
+              fontWeight: 600,
+              border: '1px solid #e2e8f0',
+              color: '#64748b',
+              '&.Mui-selected': {
+                bgcolor: '#1e3a5f',
+                color: '#ffffff',
+                borderColor: '#1e3a5f',
+                '&:hover': { bgcolor: '#1e3a5f' },
+              },
+            },
+          }}
+        >
+          {RADII.map(r => (
+            <ToggleButton key={r} value={r}>
+              {r} km
+            </ToggleButton>
+          ))}
+        </ToggleButtonGroup>
+      </Box>
+
+      <Box sx={{ display: 'flex', gap: 1 }}>
+        <KpiCard
+          label="Leerstandsquote"
+          value={`${kpis.vacancyRatePct.toFixed(1)} %`}
+          badge={vacancyLabel(kpis.vacancyRatePct)}
+          badgeColor={vacancyColor(kpis.vacancyRatePct)}
+        />
+        <KpiCard
+          label="Aktive Suchanfragen"
+          value={String(kpis.activePlatformSearches)}
+          badge={searchesLabel(kpis.activePlatformSearches)}
+          badgeColor={searchesColor(kpis.activePlatformSearches)}
+        />
+        <KpiCard
+          label="Ø Leerstandsdauer"
+          value={`${kpis.avgVacancyMonths.toFixed(1)} Mo.`}
+          badge={durationLabel(kpis.avgVacancyMonths)}
+          badgeColor={durationColor(kpis.avgVacancyMonths)}
+        />
+        <KpiCard
+          label="Nachfrage / Angebot"
+          value={`${kpis.demandSupplyRatio.toFixed(1)}×`}
+          badge={ratioLabel(kpis.demandSupplyRatio)}
+          badgeColor={ratioColor(kpis.demandSupplyRatio)}
+        />
+      </Box>
+
+      <Typography variant="caption" sx={{ color: '#94a3b8', mt: 1, display: 'block' }}>
+        Basis: {kpis.comparableListings} vergleichbare {assetTypeLabel}-Flächen im {radius}-km-Radius · KI-gestützte Schätzung
+      </Typography>
+    </Box>
+  )
+}

src/components/supply/PropertyMarketSignalsTab.tsx

@@ -5,21 +5,33 @@ import { useMarketReport } from '../../hooks/useMarketReport'
 import type { SignalCategory } from '../../domain/marketReport'
 import { SignalCard } from './SignalCard'
 import { BerichtDialog } from './BerichtDialog'
+import { MarketKpiPanel } from './MarketKpiPanel'
 
 interface Props {
   propertyId: string
 }
 
-const SECTION_CONFIG: { category: SignalCategory; label: string; icon: React.ReactNode; color: string }[] = [
+const STATIC_SECTIONS: { category: SignalCategory; label: string; icon: React.ReactNode; color: string }[] = [
   { category: 'development', label: 'Entwicklungsnews', icon: <Building2 size={16} />, color: '#1e3a5f' },
-  { category: 'demand',      label: 'Nachfrage 5 km',   icon: <TrendingUp size={16} />, color: '#1a7a4a' },
-  { category: 'supply',      label: 'Angebot 5 km',     icon: <BarChart2 size={16} />,  color: '#b45309' },
   { category: 'negotiation', label: 'Verhandlungshinweise', icon: <Lightbulb size={16} />, color: '#7c3aed' },
 ]
 
 export function PropertyMarketSignalsTab({ propertyId }: Props) {
   const { data: report = null, isLoading: loading } = useMarketReport(propertyId)
   const [dialogOpen, setDialogOpen] = useState(false)
+  const [radius, setRadius] = useState(5)
+
+  const dynamicSections: { category: SignalCategory; label: string; icon: React.ReactNode; color: string }[] = [
+    { category: 'demand', label: `Nachfrage ${radius} km`, icon: <TrendingUp size={16} />, color: '#1a7a4a' },
+    { category: 'supply', label: `Angebot ${radius} km`,   icon: <BarChart2 size={16} />,  color: '#b45309' },
+  ]
+
+  const sectionConfig = [
+    STATIC_SECTIONS[0],
+    dynamicSections[0],
+    dynamicSections[1],
+    STATIC_SECTIONS[1],
+  ]
 
   if (loading) {
     return (
@@ -58,7 +70,17 @@ export function PropertyMarketSignalsTab({ propertyId }: Props) {
           Für dieses Objekt liegen noch keine KI-generierten Marktsignale vor.
         </Alert>
       ) : (
-        SECTION_CONFIG.map(({ category, label, icon, color }) => {
+        <>
+          {report.kpis && (
+            <MarketKpiPanel
+              baseKpis={report.kpis}
+              assetTypeLabel={report.assetTypeLabel}
+              radius={radius}
+              onRadiusChange={setRadius}
+            />
+          )}
+
+          {sectionConfig.map(({ category, label, icon, color }) => {
             const signals = report.signals.filter(s => s.category === category)
             if (signals.length === 0) return null
             return (
@@ -77,7 +99,8 @@ export function PropertyMarketSignalsTab({ propertyId }: Props) {
                 {signals.map(s => <SignalCard key={s.id} signal={s} />)}
               </Box>
             )
-        })
+          })}
+        </>
       )}
 
       {dialogOpen && (

src/domain/marketReport.ts

@@ -11,8 +11,32 @@ export interface PropertyMarketSignal {
   confidence?: number
 }
 
+// Key market performance indicators for a given radius.
+// Base values are stored at 5 km; other radii are computed via getKpisForRadius().
+export interface MarketKpis {
+  vacancyRatePct: number        // % of comparable properties currently vacant
+  activePlatformSearches: number // active search requests on the platform
+  avgVacancyMonths: number      // average months comparable properties remain vacant
+  demandSupplyRatio: number     // demand / supply ratio (> 1 = more demand than supply)
+  comparableListings: number    // number of comparable active listings
+}
+
+/** Scale base KPIs (at 5 km) for a larger radius. */
+export function getKpisForRadius(base: MarketKpis, radiusKm: number): MarketKpis {
+  const f = radiusKm / 5
+  return {
+    vacancyRatePct:           +Math.min(35, base.vacancyRatePct + (f - 1) * 1.8).toFixed(1),
+    activePlatformSearches:   Math.round(base.activePlatformSearches * f * 0.85),
+    avgVacancyMonths:         +Math.min(24, base.avgVacancyMonths * (1 + (f - 1) * 0.12)).toFixed(1),
+    demandSupplyRatio:        +Math.max(0.3, base.demandSupplyRatio / (1 + (f - 1) * 0.18)).toFixed(1),
+    comparableListings:       Math.round(base.comparableListings * f * 1.1),
+  }
+}
+
 export interface MarketReport {
   propertyId: string
   generatedAt: string
+  assetTypeLabel: string   // e.g. "Büro"
+  kpis: MarketKpis         // base values at 5 km radius
   signals: PropertyMarketSignal[]
 }

src/mock-data/propertyMarketSignals.ts

@@ -4,6 +4,14 @@ export const mockPropertyMarketSignals: MarketReport[] = [
   {
     propertyId: 'prop-001',
     generatedAt: '2025-05-18T08:00:00Z',
+    assetTypeLabel: 'Büro',
+    kpis: {
+      vacancyRatePct: 4.2,
+      activePlatformSearches: 14,
+      avgVacancyMonths: 4.2,
+      demandSupplyRatio: 2.3,
+      comparableListings: 3,
+    },
     signals: [
       {
         id: 'sig-001-1',
@@ -44,6 +52,14 @@ export const mockPropertyMarketSignals: MarketReport[] = [
   {
     propertyId: 'prop-007',
     generatedAt: '2025-05-18T08:00:00Z',
+    assetTypeLabel: 'Büro',
+    kpis: {
+      vacancyRatePct: 3.8,
+      activePlatformSearches: 11,
+      avgVacancyMonths: 3.5,
+      demandSupplyRatio: 2.8,
+      comparableListings: 1,
+    },
     signals: [
       {
         id: 'sig-007-1',
@@ -83,6 +99,14 @@ export const mockPropertyMarketSignals: MarketReport[] = [
   {
     propertyId: 'prop-008',
     generatedAt: '2025-05-18T08:00:00Z',
+    assetTypeLabel: 'Büro',
+    kpis: {
+      vacancyRatePct: 7.1,
+      activePlatformSearches: 7,
+      avgVacancyMonths: 6.0,
+      demandSupplyRatio: 1.4,
+      comparableListings: 4,
+    },
     signals: [
       {
         id: 'sig-008-1',
@@ -123,6 +147,14 @@ export const mockPropertyMarketSignals: MarketReport[] = [
   {
     propertyId: 'prop-012',
     generatedAt: '2025-05-18T08:00:00Z',
+    assetTypeLabel: 'Büro',
+    kpis: {
+      vacancyRatePct: 2.9,
+      activePlatformSearches: 22,
+      avgVacancyMonths: 2.8,
+      demandSupplyRatio: 3.4,
+      comparableListings: 2,
+    },
     signals: [
       {
         id: 'sig-012-1',
@@ -172,6 +204,14 @@ export const mockPropertyMarketSignals: MarketReport[] = [
   {
     propertyId: 'prop-014',
     generatedAt: '2025-05-18T08:00:00Z',
+    assetTypeLabel: 'Lager / Logistik',
+    kpis: {
+      vacancyRatePct: 5.5,
+      activePlatformSearches: 11,
+      avgVacancyMonths: 5.8,
+      demandSupplyRatio: 1.9,
+      comparableListings: 2,
+    },
     signals: [
       {
         id: 'sig-014-1',