feat(media-supply): add media resource supply marketplace

Introduce an end-to-end media-supply feature: tenant-side resource sync
service/worker backed by a Meijiequan supplier client, ops-side management
APIs, and admin/ops web views for resources, orders, favorites and
submission. Adds a shared digitocr helper, MediaSupply config blocks for
tenant and ops, shared types, and migrations for supplier media resources,
price overrides, customer visibility and order refunds.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

server/internal/tenant/app/desktop_task_service.go

@@ -874,11 +874,7 @@ func (s *DesktopTaskService) Reconcile(ctx context.Context, actor auth.Actor, de
 		}
 	}
 
-	eventType := "task_reconciled"
-	if task.Kind == "monitor" && req.Status == "retry" {
-		eventType = "task_available"
-	}
-	s.publishTaskEvent(ctx, task, eventType)
+	s.publishTaskEvent(ctx, task, reconcileDesktopTaskEventType(task.Kind, req.Status))
 
 	view := buildDesktopTaskView(task)
 	return &view, nil
@@ -1785,6 +1781,13 @@ func (s *DesktopTaskService) publishTaskEvent(ctx context.Context, task *reposit
 	publishDesktopTaskLifecycleEvent(ctx, s.messaging, s.logger, task, eventType)
 }
 
+func reconcileDesktopTaskEventType(_ string, status string) string {
+	if status == "retry" {
+		return "task_available"
+	}
+	return "task_reconciled"
+}
+
 func (s *DesktopTaskService) logWarn(message string, err error, fields ...zap.Field) {
 	if s.logger == nil || err == nil {
 		return