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/components/demand/WeightingEditor.tsx

@@ -3,7 +3,7 @@ import { Box, Button, Card, Divider, Slider, Typography } from '@mui/material'
 import { RotateCcw } from 'lucide-react'
 import { WEIGHTING_KEYS, WEIGHTING_LABELS } from '../../domain/needBuilder'
 import type { WeightingKey } from '../../domain/needBuilder'
-import { weightingService } from '../../services/weightingService'
+import { useDefaultWeights } from '../../hooks/useWeighting'
 
 const HARD_KEYS: WeightingKey[] = ['area', 'location', 'budget', 'timing']
 const SOFT_KEYS: WeightingKey[] = [
@@ -74,6 +74,7 @@ function SliderGroup({
 
 export function WeightingEditor({ weights, onChange, assetType }: Props) {
   const [raw, setRaw] = useState<Record<WeightingKey, number>>(() => toRaw(weights))
+  const defaultWeights = useDefaultWeights(assetType)
 
   function handleSlider(key: WeightingKey, value: number) {
     const updated = { ...raw, [key]: value }
@@ -82,9 +83,8 @@ export function WeightingEditor({ weights, onChange, assetType }: Props) {
   }
 
   function handleReset() {
-    const defaults = weightingService.getDefaultWeights(assetType)
-    setRaw(toRaw(defaults))
-    onChange(defaults)
+    setRaw(toRaw(defaultWeights))
+    onChange(defaultWeights)
   }
 
   return (