docs: add ui page testing checklist

backend/app/commands/seed/seed.go

@@ -48,6 +48,39 @@ type Service struct {
 func Serve(cmd *cobra.Command, args []string) error {
 	return container.Container.Invoke(func(ctx context.Context, svc Service) error {
 		models.SetDefault(svc.DB)
+		fmt.Println("Cleaning existing data...")
+
+		truncateTables := []string{
+			"user_content_actions",
+			"comments",
+			"content_reports",
+			"audit_logs",
+			"system_configs",
+			"notification_templates",
+			"notifications",
+			"tenant_invites",
+			"tenant_join_requests",
+			"content_access",
+			"order_items",
+			"orders",
+			"user_coupons",
+			"coupons",
+			"content_assets",
+			"media_assets",
+			"content_prices",
+			"contents",
+			"tenant_users",
+			"tenants",
+			"payout_accounts",
+			"tenant_ledgers",
+			"users",
+		}
+		for _, table := range truncateTables {
+			if err := svc.DB.Exec(fmt.Sprintf("TRUNCATE TABLE %s RESTART IDENTITY CASCADE", table)).Error; err != nil {
+				fmt.Printf("Truncate table %s failed: %v\n", table, err)
+			}
+		}
+
 		fmt.Println("Seeding data...")
 
 		// 1. Users