fix: polish measured map quality output

frontend/src/components/map/MapWorkspace.tsx

@@ -1140,7 +1140,7 @@ export function MapWorkspace({
                 <span><i className="geo-legend-area" /> Werkgebied</span>
                 {analysisOverlayActive ? (
                   <>
-                    <span><i className="geo-legend-layer geo-legend-layer-buildings" /> Gevonden gebouwen</span>
+                    <span><i className="geo-legend-layer geo-legend-layer-buildings" /> AI-kandidaten</span>
                     <span><i className="geo-legend-selection" /> Selectie</span>
                   </>
                 ) : analysisMode === 'evolution' && temporalComparison?.object_changes.available ? (

frontend/src/components/quality/QualityResultsPanel.tsx

@@ -46,6 +46,10 @@ function qualityMetricValue(metric: MetricRead | undefined): string {
   return Number.isInteger(value) ? String(value) : value.toFixed(3)
 }
 
+function qualityScoreValue(value: number | null | undefined): string {
+  return typeof value === 'number' && Number.isFinite(value) ? value.toFixed(3) : 'n/a'
+}
+
 function qualityStatusLabel(status: string | null | undefined): string {
   if (!status || status === 'waiting') return 'nog niet uitgevoerd'
   if (status === 'completed' || status === 'ok') return 'afgerond'
@@ -173,7 +177,7 @@ export function QualityResultsPanel({
             </div>
             <div>
               <span>Laatste score</span>
-              <strong>{latestCheck?.score ?? 'n/a'}</strong>
+              <strong>{qualityScoreValue(latestCheck?.score)}</strong>
             </div>
             <div>
               <span>Laatste status</span>
@@ -272,7 +276,7 @@ export function QualityResultsPanel({
                 <div>
                   <span>Status</span>
                   <strong>{selectedQualityCheck.status}</strong>
-                  <p>Score: {selectedQualityCheck.score ?? 'n/a'}</p>
+                  <p>Score: {qualityScoreValue(selectedQualityCheck.score)}</p>
                 </div>
                 <div>
                   <span>Afgerond</span>
@@ -508,7 +512,7 @@ export function QualityResultsPanel({
                 <div className="quality-score-row">
                   <div>
                     <span>Score</span>
-                    <strong>{check.score ?? 'n/a'}</strong>
+                    <strong>{qualityScoreValue(check.score)}</strong>
                   </div>
                   <div>
                       <span>Meetwaarden</span>

frontend/src/styles/premium.css

@@ -1872,6 +1872,7 @@ details.ai-lab-model-surface > summary strong {
 
 .geo-image-quality-metrics {
   grid-column: 1 / -1;
+  grid-template-columns: repeat(2, minmax(0, 1fr));
   margin-top: 0.35rem;
   border-top: 1px solid var(--line);
   padding-top: 0.65rem;