refactor(arch): eliminate direct service calls in components — route all through hooks

New hook files:
- useAuth.ts: useLogin, useSwitchDemoRole, useSwitchOrganization
- useAI.ts: useParseNeed, useGenerateOfferEmail, useGenerateDecisionBrief, useParseListingText
- useAssistant.ts: useAssistantSuggestions (useQuery), useAssistantAnswer (useMutation)
- useOfferReport.ts: useOfferReportByInquiry, useCreateOfferReport, useUpdateOfferReport, useGenerateOfferReportPdf
- useInquiryReport.ts: useInquiryReportByInquiry, useCreateInquiryReport, useUpdateInquiryReport, useFinalizeInquiryReport
- useMarketReport.ts: useMarketReport
- useWeighting.ts: useDefaultWeights (synchronous wrapper)
- useUnitMatches.ts: useUnitMatchesMap, useUnitBundle, useBundleMatches (useMemo wrappers)

Extended hooks: useProperties (add update/create/remove mutations),
useNeeds (add useCreateNeed), useMatches (add useNeedMatchesForProperty,
useAdditionalMatchesForInquiry), useReviewQueue (add useCreateReviewTask)

Updated 21 components/pages: all direct service imports replaced with hooks.
Deliberate exception: getRecommendedActions in DataQuality.tsx (pure sync utility, no provider access).

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

src/hooks/useUnitMatches.ts

@@ -0,0 +1,35 @@
+import { useMemo } from 'react'
+import { unitMatchService } from '../services/unitMatchService'
+import type { Property, PropertyUnit } from '../domain/property'
+
+/**
+ * Synchronous wrappers — unitMatchService methods are pure synchronous computations.
+ * useMemo ensures we don't recompute on every render unnecessarily.
+ */
+
+export function useUnitMatchesMap(freeUnits: PropertyUnit[], property: Property) {
+  return useMemo(
+    () =>
+      Object.fromEntries(
+        freeUnits.map(u => [u.id, unitMatchService.getMatchesForUnit(u, property)]),
+      ),
+    [freeUnits, property],
+  )
+}
+
+export function useUnitBundle(selectedUnits: PropertyUnit[]) {
+  return useMemo(
+    () => (selectedUnits.length >= 2 ? unitMatchService.buildBundle(selectedUnits) : null),
+    [selectedUnits],
+  )
+}
+
+export function useBundleMatches(selectedUnits: PropertyUnit[], property: Property) {
+  return useMemo(
+    () =>
+      selectedUnits.length >= 2
+        ? unitMatchService.getMatchesForBundle(selectedUnits, property)
+        : [],
+    [selectedUnits, property],
+  )
+}