Fix e-payment settings payload, cart race, and media/content helpers.

Stop returning passwordSet (forbidNonWhitelisted), upsert carts safely, and harden related media/product/workshop flows.

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

src/workshops/workshops.module.ts

@@ -1,5 +1,6 @@
 import { Module } from '@nestjs/common';
 import { AuthModule } from '../auth/auth.module';
+import { MediaModule } from '../media/media.module';
 import { TenantModule } from '../tenant/tenant.module';
 import {
   PublicWorkshopsController,
@@ -8,7 +9,7 @@ import {
 import { WorkshopsService } from './workshops.service';
 
 @Module({
-  imports: [AuthModule, TenantModule],
+  imports: [AuthModule, MediaModule, TenantModule],
   controllers: [WorkshopsController, PublicWorkshopsController],
   providers: [WorkshopsService],
 })