fix(db): add missing indexes, bound unbounded queries, parallelize admin queries

- Add 7 missing indexes: User(kycStatus, isActive, createdAt),
  Listing(createdAt, featuredUntil, expiresAt), Payment(createdAt)
- Add take:50 limit to unbounded findMediaByPropertyId and findByPropertyId
- Parallelize sequential queries in getUserDetail with Promise.all

Co-Authored-By: Paperclip <noreply@paperclip.ing>

apps/api/src/modules/admin/infrastructure/repositories/prisma-admin-query.repository.ts

@@ -220,21 +220,22 @@ export class PrismaAdminQueryRepository implements IAdminQueryRepository {
 
     if (!user) return null;
 
-    const transactionsCount = await this.prisma.transaction.count({
-      where: { buyerId: userId },
-    });
-
-    const recentListings = await this.prisma.listing.findMany({
-      where: { sellerId: userId },
-      select: {
-        id: true,
-        status: true,
-        createdAt: true,
-        property: { select: { title: true } },
-      },
-      orderBy: { createdAt: 'desc' },
-      take: 10,
-    });
+    const [transactionsCount, recentListings] = await Promise.all([
+      this.prisma.transaction.count({
+        where: { buyerId: userId },
+      }),
+      this.prisma.listing.findMany({
+        where: { sellerId: userId },
+        select: {
+          id: true,
+          status: true,
+          createdAt: true,
+          property: { select: { title: true } },
+        },
+        orderBy: { createdAt: 'desc' },
+        take: 10,
+      }),
+    ]);
 
     const recentActivity = recentListings.map((l) => ({
       type: 'listing',

apps/api/src/modules/analytics/infrastructure/repositories/prisma-valuation.repository.ts

@@ -17,6 +17,7 @@ export class PrismaValuationRepository implements IValuationRepository {
     const records = await this.prisma.valuation.findMany({
       where: { propertyId },
       orderBy: { createdAt: 'desc' },
+      take: 50,
     });
     return records.map((r) => this.toDomain(r));
   }

apps/api/src/modules/listings/infrastructure/repositories/prisma-property.repository.ts

@@ -78,6 +78,7 @@ export class PrismaPropertyRepository implements IPropertyRepository {
     const mediaList = await this.prisma.propertyMedia.findMany({
       where: { propertyId },
       orderBy: { order: 'asc' },
+      take: 50,
     });
     return mediaList.map((m) => this.toMediaDomain(m));
   }

prisma/schema.prisma

@@ -57,6 +57,9 @@ model User {
 
   @@index([phone])
   @@index([role])
+  @@index([kycStatus])
+  @@index([isActive])
+  @@index([createdAt])
 }
 
 enum OAuthProvider {
@@ -245,6 +248,9 @@ model Listing {
   @@index([propertyId])
   @@index([agentId])
   @@index([publishedAt])
+  @@index([createdAt])
+  @@index([featuredUntil])
+  @@index([expiresAt])
 }
 
 // =============================================================================
@@ -378,6 +384,7 @@ model Payment {
   @@index([transactionId])
   @@index([status])
   @@index([providerTxId])
+  @@index([createdAt])
 }
 
 // =============================================================================