feat: scope articles by brand

server/internal/tenant/app/kol_generation_service.go

@@ -134,6 +134,11 @@ func (s *KolGenerationService) GetSchema(ctx context.Context, actor auth.Actor,
 }
 
 func (s *KolGenerationService) Submit(ctx context.Context, actor auth.Actor, subPromptID int64, req KolGenerationSubmitRequest) (*KolGenerationSubmitResponse, error) {
+	brandID, err := requireCurrentBrandID(ctx)
+	if err != nil {
+		return nil, err
+	}
+
 	row, prompt, err := s.loadAuthorizedPrompt(ctx, actor, subPromptID)
 	if err != nil {
 		return nil, err
@@ -253,6 +258,7 @@ func (s *KolGenerationService) Submit(ctx context.Context, actor auth.Actor, sub
 
 	articleID, err := articleTx.CreateArticle(ctx, repository.CreateArticleInput{
 		TenantID:    actor.TenantID,
+		BrandID:     brandID,
 		SourceType:  kolGenerationTaskType,
 		KolPromptID: &row.PromptID,
 	})