Link calibration rows to QA evidence map

frontend/src/App.tsx

@@ -993,6 +993,7 @@ function App(): JSX.Element {
                 onRunQa={runDetectionQa}
                 onSetCalibrationThresholdText={setCalibrationThresholdText}
                 onRunCalibration={runDetectionCalibration}
+                onOpenCalibrationEvidence={openQualityEvidenceOnMap}
               />
 
               <SegmentationLab

frontend/src/components/detection/DetectionLab.tsx

@@ -79,6 +79,7 @@ interface DetectionLabProps {
   onRunQa: () => void
   onSetCalibrationThresholdText: (value: string) => void
   onRunCalibration: () => void
+  onOpenCalibrationEvidence: (qualityCheckId: string) => void
 }
 
 export function DetectionLab({
@@ -133,6 +134,7 @@ export function DetectionLab({
   onRunQa,
   onSetCalibrationThresholdText,
   onRunCalibration,
+  onOpenCalibrationEvidence,
 }: DetectionLabProps): JSX.Element {
   const selectedDetectionModel = detectionModels.find((model) => model.model_id === selectedDetectionModelId) ?? null
   const selectedModelAsset = modelAssets.find((asset) => asset.model_asset_id === selectedModelAssetId) ?? null
@@ -583,6 +585,7 @@ export function DetectionLab({
                     <th>F1</th>
                     <th>False positives</th>
                     <th>False negatives</th>
+                    <th>Evidence</th>
                   </tr>
                 </thead>
                 <tbody>
@@ -596,6 +599,17 @@ export function DetectionLab({
                       <td>{formatNullableNumber(row.f1_score ?? null, 3)}</td>
                       <td>{row.false_positives ?? 'n/a'}</td>
                       <td>{row.false_negatives ?? 'n/a'}</td>
+                      <td>
+                        <button
+                          className="secondary-action table-action"
+                          type="button"
+                          onClick={() => row.quality_check_id ? onOpenCalibrationEvidence(row.quality_check_id) : undefined}
+                          disabled={!row.quality_check_id || row.status !== 'success'}
+                          aria-label={`Open evidence map for threshold ${row.threshold.toFixed(2)}`}
+                        >
+                          Open evidence map
+                        </button>
+                      </td>
                     </tr>
                   ))}
                 </tbody>

frontend/src/styles/app.css

@@ -3309,6 +3309,12 @@ button.entity-card {
   background: #ffffff;
 }
 
+.table-action {
+  min-height: 2rem;
+  padding: 0.35rem 0.6rem;
+  white-space: nowrap;
+}
+
 .calibration-summary-grid {
   display: grid;
   grid-template-columns: repeat(3, minmax(0, 1fr));