Add Mellat e-payment, videos/instructions CMS, and legacy domain lookup.

Store gateway credentials per business, initiate/verify Mellat at checkout, and resolve old CMS ids from domains in the migrate modal.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/business-admin/business-admin.service.ts

@@ -18,6 +18,7 @@ import { UpdateBusinessDto } from './dto/update-business.dto';
 import { ListBusinessesDto } from './dto/list-businesses.dto';
 import { SearchBusinessesDto } from './dto/search-businesses.dto';
 import { MigrateFromOldDto } from './dto/migrate-from-old.dto';
+import { LegacyMigrateLookupDto } from './dto/legacy-migrate-lookup.dto';
 import { PurgeBusinessDataDto } from './dto/purge-business-data.dto';
 import { LegacyMigrateService } from './legacy-migrate.service';
 import { LegacyPurgeService } from './legacy-purge.service';
@@ -676,6 +677,50 @@ export class BusinessAdminService {
     return { message: 'Business removed' };
   }
 
+  async lookupLegacyMigrate(
+    businessIdRaw: string,
+    query: LegacyMigrateLookupDto,
+    actor: AuthUser,
+  ) {
+    await this.assertSuperAdmin(actor);
+
+    const businessId = BigInt(businessIdRaw);
+    const business = await this.prisma.business.findUnique({
+      where: { id: businessId },
+      select: {
+        id: true,
+        name: true,
+        domains: {
+          select: { host: true, isPrimary: true },
+          orderBy: [{ isPrimary: 'desc' }, { createdAt: 'asc' }],
+        },
+      },
+    });
+
+    if (!business) {
+      throw new NotFoundException('Business not found');
+    }
+
+    const meshkeeHosts = business.domains.map((d) => d.host);
+    const lookup = await this.legacyMigrate.lookupLegacyBusiness({
+      meshkeeHosts,
+      oldBusinessId: query.oldBusinessId,
+    });
+
+    return {
+      meshkeeHosts,
+      meshkeeBusinessName: business.name,
+      oldBusinessId:
+        lookup.oldBusinessId != null ? String(lookup.oldBusinessId) : null,
+      domains: lookup.domains,
+      brandEn: lookup.brandEn,
+      brandFa: lookup.brandFa,
+      slug: lookup.slug,
+      matchedHost: lookup.matchedHost,
+      source: lookup.source,
+    };
+  }
+
   async migrateFromOld(businessIdRaw: string, dto: MigrateFromOldDto, actor: AuthUser) {
     await this.assertSuperAdmin(actor);