品牌图片设计流水线

type WorkflowInput = { request: string; userId: string };
type StageAdapter = (context: unknown) => Promise<unknown>;

const stages = [
  "结构化创意目标、受众、渠道和尺寸",
  "检索品牌资产、参考图与禁用元素",
  "生成多个视觉方向和文案组合",
  "检查文字、商标、安全区与品牌色",
  "导出渠道规格并记录提示词与版本"
];
const selectedTools = [];

export async function runWorkflow(input: WorkflowInput, adapters: Record<string, StageAdapter>) {
  let context: unknown = { ...input, selectedTools };

  for (const stage of stages) {
    const adapter = adapters[stage];
    if (!adapter) throw new Error(`Missing adapter: ${stage}`);
    context = await adapter(context);
  }

  return context;
}