Add reusable GIS run mode and AI runtime opt-in

frontend/src/App.tsx

@@ -860,6 +860,7 @@ function App(): JSX.Element {
               latestSelectionExportPath={latestSelectionExport?.path ?? null}
               selectionDatasetSaving={selectionDatasetSaving}
               selectionDatasetError={selectionDatasetError}
+              latestSelectionDataset={latestSelectionDataset}
               latestSelectionDatasetName={latestSelectionDataset?.name ?? null}
               mapQaReferenceDatasets={referenceDatasets}
               selectedMapQaReferenceDatasetId={selectedMapQaReferenceDatasetId}

frontend/src/components/map/MapWorkspace.tsx

@@ -201,6 +201,7 @@ interface MapWorkspaceProps {
   latestSelectionExportPath: string | null
   selectionDatasetSaving: boolean
   selectionDatasetError: string | null
+  latestSelectionDataset: DatasetCreateResponse | null
   latestSelectionDatasetName: string | null
   mapQaReferenceDatasets: DatasetCreateResponse[]
   selectedMapQaReferenceDatasetId: string
@@ -258,6 +259,7 @@ export function MapWorkspace({
   latestSelectionExportPath,
   selectionDatasetSaving,
   selectionDatasetError,
+  latestSelectionDataset,
   latestSelectionDatasetName,
   mapQaReferenceDatasets,
   selectedMapQaReferenceDatasetId,
@@ -290,6 +292,7 @@ export function MapWorkspace({
   const [fullWorkflowRunning, setFullWorkflowRunning] = useState(false)
   const [fullWorkflowStatus, setFullWorkflowStatus] = useState('Ready to run persisted GIS workflow.')
   const [fullWorkflowError, setFullWorkflowError] = useState<string | null>(null)
+  const [fullWorkflowMode, setFullWorkflowMode] = useState<'new' | 'reuse'>('new')
   const selectedMapArea = areas.find((area) => area.id === selectedMapAreaId)
   const featureProperties = selectedMapFeature?.properties ?? null
   const featureSummaryEntries = featureProperties
@@ -409,6 +412,30 @@ export function MapWorkspace({
 
   const runFullGisWorkflow = async () => {
     const bbox = currentSelectionBbox ?? selectedAreaBbox ?? activeLayerBbox
+    if (fullWorkflowMode === 'reuse') {
+      if (!latestSelectionDataset) {
+        setFullWorkflowError('Save a map selection dataset before reusing the latest result.')
+        return
+      }
+      if (!selectedMapQaReferenceDatasetId) {
+        setFullWorkflowError('Select a reference dataset before reusing the latest result for QA/QC.')
+        return
+      }
+      setFullWorkflowRunning(true)
+      setFullWorkflowError(null)
+      try {
+        setFullWorkflowStatus('Reusing latest saved dataset for QA/QC...')
+        const qaResult = await onRunMapSelectionQa(latestSelectionDataset)
+        setFullWorkflowStatus(qaResult ? 'Reused latest saved dataset and completed QA/QC.' : 'Latest saved dataset reused, but QA/QC did not complete.')
+      } catch (error) {
+        setFullWorkflowError(error instanceof Error ? error.message : 'Full GIS workflow failed.')
+        setFullWorkflowStatus('Workflow stopped.')
+      } finally {
+        setFullWorkflowRunning(false)
+      }
+      return
+    }
+
     if (!selectedMapDataset || !bbox) {
       setFullWorkflowError('Select a database layer and AOI/layer extent before running the full workflow.')
       return
@@ -753,9 +780,26 @@ export function MapWorkspace({
               </div>
             </div>
             <div className="guided-gis-actions">
+              <label className="guided-gis-run-mode">
+                Run mode
+                <select
+                  value={fullWorkflowMode}
+                  onChange={(event) => setFullWorkflowMode(event.target.value === 'reuse' ? 'reuse' : 'new')}
+                  disabled={fullWorkflowRunning}
+                >
+                  <option value="new">Create new dataset/export</option>
+                  <option value="reuse" disabled={!latestSelectionDataset}>
+                    Reuse latest saved dataset for QA
+                  </option>
+                </select>
+              </label>
               <button
                 className="primary-action guided-gis-full-run"
-                disabled={!selectedMapDataset || !mapFeatureCollection || (!currentSelectionBbox && !selectedAreaBbox && !activeLayerBbox) || fullWorkflowRunning}
+                disabled={
+                  fullWorkflowRunning ||
+                  (fullWorkflowMode === 'new' && (!selectedMapDataset || !mapFeatureCollection || (!currentSelectionBbox && !selectedAreaBbox && !activeLayerBbox))) ||
+                  (fullWorkflowMode === 'reuse' && (!latestSelectionDataset || !selectedMapQaReferenceDatasetId))
+                }
                 type="button"
                 onClick={runFullGisWorkflow}
               >

frontend/src/styles/app.css

@@ -4877,6 +4877,15 @@ section {
   grid-column: span 1;
 }
 
+.guided-gis-run-mode {
+  grid-column: span 2;
+  min-width: 0;
+}
+
+.guided-gis-run-mode select {
+  min-height: 2.1rem;
+}
+
 .guided-gis-batch-status {
   display: grid;
   gap: 0.12rem;