Enable storefront provision from Add Domain via optional git URL.

Persist deploy_slug on domains, call the websites agent /provision endpoint, and drop the hard-coded host map so Deploy appears from the UI.

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

src/domain-admin/domain-admin.module.ts

@@ -1,11 +1,12 @@
 import { Module } from '@nestjs/common';
 import { ConfigModule } from '@nestjs/config';
 import { AuthModule } from '../auth/auth.module';
+import { WebsiteDeployModule } from '../website-deploy/website-deploy.module';
 import { DomainAdminController } from './domain-admin.controller';
 import { DomainAdminService } from './domain-admin.service';
 
 @Module({
-  imports: [AuthModule, ConfigModule],
+  imports: [AuthModule, ConfigModule, WebsiteDeployModule],
   controllers: [DomainAdminController],
   providers: [DomainAdminService],
 })