feat(listings): phase B — rich property fields + admin-authored personas

Schema (prisma/migrations/20260419000000_property_rich_fields)
--------------------------------------------------------------
New Prisma enums:
- Furnishing: FULLY_FURNISHED / BASIC_FURNISHED / UNFURNISHED
- PropertyCondition: NEW / LIKE_NEW / RENOVATED / USED

New Property columns (all optional / default empty, no data loss):
- furnishing, propertyCondition — enums above
- balconyDirection — reuses existing Direction enum
- maintenanceFeeVND BigInt (phí quản lý/tháng)
- parkingSlots Int
- viewType String[] (e.g. ["Sông","Thành phố"])
- petFriendly Boolean (null = unknown)
- suitableFor String[] — admin-chosen persona labels
- whyThisLocation Text — admin narrative

Backend wiring end-to-end
-------------------------
- Create/Update DTOs: @IsEnum/@IsString/@IsNumber/@IsBoolean/@IsArray
  validators; maintenanceFeeVND accepted as a numeric string, cast to
  BigInt on the way to Prisma. whyThisLocation capped at 2000 chars.
- Introduced a small `PropertyExtras` interface on the create/update
  commands so the constructor signature stays readable instead of
  ballooning to 30+ positional args. Handlers forward it to the repo.
- Prisma property repository writes all new columns via raw SQL
  INSERT/UPDATE and reads them on findById.
- ListingDetailData + findByIdWithProperty expose the 9 new fields
  (maintenanceFeeVND serialised as decimal string to avoid BigInt JSON).

Frontend
--------
- listings-api.ts: ListingDetail.property + CreateListingPayload carry
  the 9 new fields; Furnishing + PropertyCondition exported as string
  unions.
- validations/listings.ts: zod schema extended; FURNISHING_OPTIONS,
  PROPERTY_CONDITION_OPTIONS, VIEW_TYPE_OPTIONS label arrays added in
  the existing DIRECTIONS style (Vietnamese labels).
- listing-form-steps.tsx StepDetails: new "Nội thất & điều kiện"
  fieldset with selects/inputs for each field. viewType + suitableFor
  are comma-separated text (same convention as amenities).
  petFriendly is a 3-way select (không chọn / Có / Không).
- new/page.tsx + [id]/edit/page.tsx: submit handlers split CSV inputs
  into arrays, coerce petFriendly, prune empty selects.
- listing-detail-client.tsx Details card: new rows for furnishing,
  propertyCondition, balconyDirection, maintenanceFeeVND (VND
  formatted), parkingSlots, viewType (joined · ), petFriendly
  (Cho phép / Không cho phép / hide when null).
- PersonaFitCard now takes the listing directly and MERGES admin
  suitableFor (rendered first with a "Người đăng chọn" badge in primary
  accent) with the derived personas (deduped by label). When
  whyThisLocation is non-empty it overrides the derived narrative.

Tests
-----
- listing-detail-client.spec.tsx fixture gains all 9 nullable/empty
  defaults.
- listing-form-steps.spec.tsx direction-options duplication fixed.
- pnpm --filter @goodgo/api test --run: 1975/1975 pass.
- pnpm --filter @goodgo/web test --run: 624/624 pass.

Phase B of 4. Next: Phase E AI advisor via Anthropic Opus (URL+key to
be provided by the user).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/web/components/listings/listing-detail-client.tsx

@@ -18,7 +18,13 @@ import { formatPrice, formatPricePerM2 } from '@/lib/currency';
 import { composeWhyThisLocation, derivePersonas } from '@/lib/listing-personas';
 import type { ListingDetail, NeighborhoodScoreResult, PriceHistoryItem } from '@/lib/listings-api';
 import { listingsApi } from '@/lib/listings-api';
-import { PROPERTY_TYPES, DIRECTIONS, TRANSACTION_TYPES } from '@/lib/validations/listings';
+import {
+  PROPERTY_TYPES,
+  DIRECTIONS,
+  TRANSACTION_TYPES,
+  FURNISHING_OPTIONS,
+  PROPERTY_CONDITION_OPTIONS,
+} from '@/lib/validations/listings';
 import type { POIItem } from '@/components/neighborhood';
 
 const NeighborhoodRadarChart = dynamic(
@@ -244,6 +250,27 @@ export function ListingDetailClient({ listing }: ListingDetailClientProps) {
                       : '---'
                   }
                 />
+                <InfoItem label="Nội thất" value={getLabel(FURNISHING_OPTIONS, property.furnishing) || '---'} />
+                <InfoItem label="Tình trạng" value={getLabel(PROPERTY_CONDITION_OPTIONS, property.propertyCondition) || '---'} />
+                <InfoItem label="Hướng ban công" value={getLabel(DIRECTIONS, property.balconyDirection) || '---'} />
+                <InfoItem
+                  label="Phí quản lý/tháng"
+                  value={property.maintenanceFeeVND ? `${formatPrice(property.maintenanceFeeVND)} VND` : '---'}
+                />
+                <InfoItem
+                  label="Chỗ để xe"
+                  value={property.parkingSlots != null ? `${property.parkingSlots}` : '---'}
+                />
+                <InfoItem
+                  label="View"
+                  value={property.viewType && property.viewType.length > 0 ? property.viewType.join(' • ') : '---'}
+                />
+                {property.petFriendly !== null && (
+                  <InfoItem
+                    label="Thú cưng"
+                    value={property.petFriendly ? 'Cho phép' : 'Không cho phép'}
+                  />
+                )}
               </div>
             </CardContent>
           </Card>
@@ -451,17 +478,29 @@ function PersonaFitCard({
   score: NeighborhoodScoreResult | null;
   pois: POIItem[];
 }) {
-  const personas = React.useMemo(
+  const adminPicks = listing.property.suitableFor ?? [];
+  const adminNarrative = listing.property.whyThisLocation?.trim() || null;
+
+  // Derive personas purely from signals — then prepend admin picks, de-duping
+  // against derived labels so we never double up.
+  const derived = React.useMemo(
     () => derivePersonas(listing, score, pois),
     [listing, score, pois],
   );
-  const narrative = React.useMemo(
+  const derivedNarrative = React.useMemo(
     () => composeWhyThisLocation(listing, score, pois),
     [listing, score, pois],
   );
 
+  // Admin narrative wins when present — that's the authoritative version.
+  const narrative = adminNarrative ?? derivedNarrative;
+
+  // Merge: admin picks first (each shown as "admin-chosen"), then derived
+  // personas whose labels aren't already in the admin picks.
+  const derivedFiltered = derived.filter((d) => !adminPicks.includes(d.label));
+
   // Only render when we have something meaningful to say.
-  if (personas.length === 0 && !narrative) return null;
+  if (adminPicks.length === 0 && derivedFiltered.length === 0 && !narrative) return null;
 
   return (
     <Card className="my-6 border-primary/30 bg-primary/5">
@@ -469,9 +508,20 @@ function PersonaFitCard({
         <CardTitle className="text-lg">Phù hợp với ai?</CardTitle>
       </CardHeader>
       <CardContent className="space-y-4">
-        {personas.length > 0 && (
+        {(adminPicks.length > 0 || derivedFiltered.length > 0) && (
           <div className="flex flex-wrap gap-2">
-            {personas.map((p) => (
+            {adminPicks.map((label) => (
+              <div
+                key={`admin-${label}`}
+                className="group relative inline-flex items-center gap-1.5 rounded-full border border-primary/50 bg-primary/10 px-3 py-1.5 text-sm shadow-sm"
+              >
+                <span className="font-medium">{label}</span>
+                <span className="rounded bg-primary/20 px-1.5 py-0.5 text-[10px] uppercase tracking-wide text-primary">
+                  Người đăng chọn
+                </span>
+              </div>
+            ))}
+            {derivedFiltered.map((p) => (
               <div
                 key={p.key}
                 className="group relative inline-flex items-center gap-1.5 rounded-full border bg-card px-3 py-1.5 text-sm shadow-sm"
@@ -483,9 +533,9 @@ function PersonaFitCard({
             ))}
           </div>
         )}
-        {personas.length > 0 && (
+        {derivedFiltered.length > 0 && (
           <ul className="space-y-1.5 text-sm text-muted-foreground">
-            {personas.map((p) => (
+            {derivedFiltered.map((p) => (
               <li key={`reason-${p.key}`} className="flex gap-2">
                 <span className="shrink-0 text-primary" aria-hidden="true">→</span>
                 <span>