feat: Reminder Manager + Schattenmarkt-Freigabe + mock data overhaul

- Add Reminder Manager page (/supply/reminder-manager) with KPI bar,
  filter bar, list/card feed, and detail drawer (7 sections incl.
  activity log, snooze, complete, dismiss actions)
- Add Schattenmarkt-Freigabe toggle on PropertyDetailView: Verwaltung
  can opt-in properties for early market exposure before contract expiry
- Auto-generate FutureSignal cards via useSchattenmarktSignals hook
  when leaseEndDate - leadTimeMonths <= MOCK_TODAY
- Fix useUnifiedResults: use property.resultType as fallback (was
  defaulting everything to VERIFIED_PORTFOLIO)
- Fix demand Results: hide VERIFIED_PORTFOLIO from non-manager users
  even when showOwnProperties toggle was previously enabled
- Fix AppShell: redirect to allowed workspace on user role switch
- Fix 3 wrong match scores (match-002: 93→62, match-009: 86→55,
  match-017: 87→52)
- Add 7 new match records (match-050–056) for need-001, need-002,
  need-011
- Add need-011 (Retail Bern Innenstadt)
- Add prop-031–036 (EXTERNAL_MARKET / MAISON_WORK / FUTURE_AVAILABILITY)
- Fix duplicate image URLs across all properties
- Add signal-011 (Bern Altstadt, Mode Boutique) + propertyId to
  signal-001

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

src/components/supply/ReminderCard.tsx

@@ -0,0 +1,124 @@
+import { Card, CardContent, Box, Typography, Chip, IconButton, Tooltip, Divider } from '@mui/material'
+import { Check, Bell, X, MapPin, Calendar } from 'lucide-react'
+import type { Reminder } from '../../domain/reminder'
+import { ReminderPriorityBadge } from './ReminderPriorityBadge'
+import { ReminderTypeBadge } from './ReminderTypeBadge'
+import { ReminderDaysIndicator } from './ReminderDaysIndicator'
+import { useCompleteReminder, useDismissReminder, useSnoozeReminder } from '../../hooks/useReminders'
+import { useReminderStore } from '../../stores/reminderStore'
+import { ReminderStatus } from '../../domain/reminder'
+
+const STATUS_CHIP_COLOR: Record<string, 'default' | 'success' | 'warning' | 'error' | 'info'> = {
+  ACTIVE: 'info',
+  SNOOZED: 'warning',
+  COMPLETED: 'success',
+  DISMISSED: 'default',
+}
+
+const STATUS_LABEL: Record<string, string> = {
+  ACTIVE: 'Aktiv',
+  SNOOZED: 'Schlummernd',
+  COMPLETED: 'Erledigt',
+  DISMISSED: 'Verworfen',
+}
+
+interface Props {
+  reminder: Reminder
+}
+
+export function ReminderCard({ reminder }: Props) {
+  const { setSelectedId, setDrawerOpen } = useReminderStore()
+  const complete = useCompleteReminder()
+  const dismiss = useDismissReminder()
+  const snooze = useSnoozeReminder()
+
+  const isActionable = reminder.status === ReminderStatus.ACTIVE || reminder.status === ReminderStatus.SNOOZED
+
+  return (
+    <Card
+      variant="outlined"
+      sx={{
+        cursor: 'pointer',
+        '&:hover': { boxShadow: 2 },
+        transition: 'box-shadow 0.15s',
+      }}
+      onClick={() => { setSelectedId(reminder.id); setDrawerOpen(true) }}
+    >
+      <CardContent sx={{ p: 2, '&:last-child': { pb: 2 } }}>
+        {/* Top row */}
+        <Box sx={{ display: 'flex', justifyContent: 'space-between', alignItems: 'flex-start', mb: 1 }}>
+          <Box sx={{ display: 'flex', gap: 1, flexWrap: 'wrap' }}>
+            <ReminderTypeBadge type={reminder.type} />
+            <ReminderPriorityBadge priority={reminder.priority} />
+          </Box>
+          <Chip
+            label={STATUS_LABEL[reminder.status]}
+            color={STATUS_CHIP_COLOR[reminder.status]}
+            size="small"
+            sx={{ height: 20, fontSize: '0.7rem' }}
+          />
+        </Box>
+
+        {/* Property */}
+        <Typography variant="body2" sx={{ fontWeight: 600, mb: 0.25 }}>
+          {reminder.propertyTitle}
+        </Typography>
+        <Box sx={{ display: 'flex', alignItems: 'center', gap: 0.5, mb: 0.5 }}>
+          <MapPin size={12} color="#94a3b8" />
+          <Typography variant="caption" color="text.secondary">
+            {reminder.propertyCity}{reminder.propertyDistrict ? ` · ${reminder.propertyDistrict}` : ''}
+          </Typography>
+        </Box>
+        <Typography variant="caption" color="text.secondary" sx={{ display: 'block', mb: 1 }}>
+          {reminder.tenantName} · {reminder.areaSqm.toLocaleString('de-CH')} m²
+        </Typography>
+
+        <Divider sx={{ my: 1 }} />
+
+        {/* Due date */}
+        <Box sx={{ display: 'flex', alignItems: 'center', gap: 0.75, mb: 1 }}>
+          <Calendar size={13} color="#64748b" />
+          <Typography variant="caption" color="text.secondary">
+            Fällig: {new Date(reminder.dueDate).toLocaleDateString('de-CH')}
+          </Typography>
+          <Box sx={{ ml: 'auto' }}>
+            <ReminderDaysIndicator dueDate={reminder.dueDate} />
+          </Box>
+        </Box>
+
+        {/* Actions */}
+        {isActionable && (
+          <Box sx={{ display: 'flex', gap: 0.5 }} onClick={e => e.stopPropagation()}>
+            <Tooltip title="Erledigen">
+              <IconButton
+                size="small"
+                onClick={() => complete.mutate({ id: reminder.id })}
+                sx={{ color: '#16a34a', border: '1px solid #dcfce7', borderRadius: 1 }}
+              >
+                <Check size={14} />
+              </IconButton>
+            </Tooltip>
+            <Tooltip title="7 Tage schlummern">
+              <IconButton
+                size="small"
+                onClick={() => snooze.mutate({ id: reminder.id, until: '2026-05-27' })}
+                sx={{ color: '#ca8a04', border: '1px solid #fef9c3', borderRadius: 1 }}
+              >
+                <Bell size={14} />
+              </IconButton>
+            </Tooltip>
+            <Tooltip title="Verwerfen">
+              <IconButton
+                size="small"
+                onClick={() => dismiss.mutate({ id: reminder.id })}
+                sx={{ color: '#dc2626', border: '1px solid #fee2e2', borderRadius: 1 }}
+              >
+                <X size={14} />
+              </IconButton>
+            </Tooltip>
+          </Box>
+        )}
+      </CardContent>
+    </Card>
+  )
+}