ALTER TABLE "crm_approval_workflows" ADD COLUMN "description" text; --> statement-breakpoint ALTER TABLE "crm_approval_workflows" ADD COLUMN "is_system" boolean DEFAULT false NOT NULL; --> statement-breakpoint ALTER TABLE "crm_approval_workflows" ADD COLUMN "created_by" text NOT NULL DEFAULT ''; --> statement-breakpoint ALTER TABLE "crm_approval_workflows" ADD COLUMN "updated_by" text NOT NULL DEFAULT ''; --> statement-breakpoint ALTER TABLE "crm_approval_steps" ADD COLUMN "approval_mode" text DEFAULT 'sequential' NOT NULL;