feat: role-aware UX, market intelligence, score fix & layout scroll

- Role-based workspace access: Property Manager gets Supply+Demand,
  Operations restricted to Super Admin + Reviewer only
- Root redirect routes each persona to their first workspace
- Match Center: replaced 3-panel with auto-sorted flat list + drawer
- AI Search: unified form with dual-action (Jetzt suchen / Als Suchprofil speichern)
- CompareTray hidden on non-Demand routes; Vergleichen removed from Supply
- LocationIntelligencePanel: city KPIs, rent trends, soft factors, comparables
- NegotiationInsightsPanel: price positioning, active demand, selling arguments
- scoreCalculator: cap hardMatchScore and softFactorScore to max 100
- Layout: add display:flex to overflow:hidden wrappers so inner scroll works
  (MatchCenter drawer, MarketIntelligence, SourceMonitoring, SignalPipeline)

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

src/pages/ops/MarketIntelligence.tsx

@@ -37,7 +37,7 @@ export default function MarketIntelligence() {
             onFiltersChange={setFilters}
           />
         </Box>
-        <Box sx={{ flex: 1, overflow: 'hidden' }}>
+        <Box sx={{ flex: 1, overflow: 'hidden', display: 'flex', flexDirection: 'column' }}>
           <MarketSignalDetailPanel signal={selectedSignal} />
         </Box>
       </Box>

src/pages/ops/SignalPipeline.tsx

@@ -37,7 +37,7 @@ export default function SignalPipeline() {
             onFiltersChange={setFilters}
           />
         </Box>
-        <Box sx={{ flex: 1, overflow: 'hidden' }}>
+        <Box sx={{ flex: 1, overflow: 'hidden', display: 'flex', flexDirection: 'column' }}>
           {selectedSignal
             ? <SignalPipelineView signal={selectedSignal} />
             : <MarketSignalEmptyState variant="no-selection" />

src/pages/ops/SourceMonitoring.tsx

@@ -40,7 +40,7 @@ export default function SourceMonitoring() {
           />
         </Box>
         {/* Right: Detail panel */}
-        <Box sx={{ flex: 1, overflow: 'hidden' }}>
+        <Box sx={{ flex: 1, overflow: 'hidden', display: 'flex', flexDirection: 'column' }}>
           <SourceDetailPanel source={selectedSource} />
         </Box>
       </Box>