return await this.promoteDependencyReady(nextChild.id);

}

async linkParents(childId: string, parentIds: readonly string[]): Promise<WorkboardCard> {

let child = await this.get(childId);

if (!child) {

throw new Error(`card not found: ${childId}`);

}

for (const parentId of parentIds) {

child = await this.linkCards(parentId, child.id);

}

return child;

}

private async dependencyTargetStatus(card: WorkboardCard, now: number): Promise<WorkboardStatus> {

const scheduledAt = card.metadata?.automation?.scheduledAt;

const parents = cardParentIds(card);