Add optional git repo URL on Add Domain for storefront wiring.

Super Admin can opt into websites VM provision so Deploy shows on Websites without manual slug maps.

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

apps/super-admin/src/services/businessService.ts

@@ -26,6 +26,8 @@ export interface UpdateBusinessPayload {
 export interface AddDomainPayload {
   host: string
   isPrimary?: boolean
+  /** When set, provisions storefront deploy on the websites VM. */
+  gitRepoUrl?: string
 }
 
 export interface DisableBusinessPayload {