Allow add/edit domain to upsert tenant DNS on Cloudflare or Arvan.

Update DNS writes @, www, business, customer, and api records on the chosen provider instead of Arvan only.

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

src/domain-admin/domain-admin.service.ts

@@ -719,8 +719,10 @@ export class DomainAdminService {
       },
     });
 
-    // Same Arvan helper as business-admin domain add/edit (`ensureTenantRecords`).
-    const dnsError = dto.updateDns ? await this.applyArvanDns(host) : null;
+    // Same DNS helper as business-admin domain add/edit (`ensureTenantRecords`).
+    const dnsError = dto.updateDns
+      ? await this.applyTenantDns(host, dto.dnsProvider === 'cloudflare' ? 'cloudflare' : 'arvan')
+      : null;
 
     return {
       ...updated,
@@ -936,12 +938,22 @@ export class DomainAdminService {
     }
   }
 
-  private async applyArvanDns(host: string): Promise<string | null> {
+  private async applyTenantDns(
+    host: string,
+    provider: ParkedDnsProvider,
+  ): Promise<string | null> {
     try {
-      await this.arvanDns.ensureTenantRecords(host);
+      if (provider === 'cloudflare') {
+        await this.cloudflareDns.ensureTenantRecords(host);
+      } else {
+        await this.arvanDns.ensureTenantRecords(host);
+      }
       return null;
     } catch (err) {
-      return this.httpErrorMessage(err, 'Arvan DNS update failed');
+      return this.httpErrorMessage(
+        err,
+        provider === 'cloudflare' ? 'Cloudflare DNS update failed' : 'Arvan DNS update failed',
+      );
     }
   }