Add QA evidence map overlay

frontend/src/hooks/useQualityWorkflow.ts

@@ -1,6 +1,6 @@
 import { useState } from 'react'
 import { qaApi } from '../services/api'
-import type { JobRead, QaComparisonRequest, QaComparisonResult, QualityCheckRead } from '../types'
+import type { JobRead, QaComparisonRequest, QaComparisonResult, QualityCheckRead, QualityEvidenceGeoJsonResponse } from '../types'
 import { formatError } from '../lib/formatError'
 
 interface QualityWorkflowOptions {
@@ -18,6 +18,9 @@ export function useQualityWorkflow({ selectedProjectId, loadProjectData }: Quali
   const [qaError, setQaError] = useState<string | null>(null)
   const [qualityChecks, setQualityChecks] = useState<QualityCheckRead[]>([])
   const [qualityChecksError, setQualityChecksError] = useState<string | null>(null)
+  const [qualityEvidenceGeoJson, setQualityEvidenceGeoJson] = useState<QualityEvidenceGeoJsonResponse | null>(null)
+  const [qualityEvidenceLoading, setQualityEvidenceLoading] = useState(false)
+  const [qualityEvidenceError, setQualityEvidenceError] = useState<string | null>(null)
 
   const loadQualityChecks = async (projectId = selectedProjectId): Promise<QualityCheckRead[] | void> => {
     if (!projectId) {
@@ -34,6 +37,30 @@ export function useQualityWorkflow({ selectedProjectId, loadProjectData }: Quali
     }
   }
 
+  const loadQualityEvidenceGeoJson = async (qualityCheckId: string, projectId = selectedProjectId): Promise<QualityEvidenceGeoJsonResponse | null> => {
+    if (!projectId) {
+      setQualityEvidenceError('Select a project first')
+      return null
+    }
+    setQualityEvidenceLoading(true)
+    setQualityEvidenceError(null)
+    try {
+      const response = await qaApi.getQualityEvidenceGeoJson(projectId, qualityCheckId)
+      setQualityEvidenceGeoJson(response)
+      return response
+    } catch (error) {
+      setQualityEvidenceError(formatError(error, 'Failed to load QA/QC evidence overlay'))
+      return null
+    } finally {
+      setQualityEvidenceLoading(false)
+    }
+  }
+
+  const clearQualityEvidenceGeoJson = () => {
+    setQualityEvidenceGeoJson(null)
+    setQualityEvidenceError(null)
+  }
+
   const runQaComparison = async () => {
     if (!selectedProjectId) {
       setQaError('Select a project first')
@@ -102,7 +129,12 @@ export function useQualityWorkflow({ selectedProjectId, loadProjectData }: Quali
     qaError,
     qualityChecks,
     qualityChecksError,
+    qualityEvidenceGeoJson,
+    qualityEvidenceLoading,
+    qualityEvidenceError,
     loadQualityChecks,
+    loadQualityEvidenceGeoJson,
+    clearQualityEvidenceGeoJson,
     runQaComparison,
     setQaCandidateDatasetId,
     setQaReferenceDatasetId,