Coze Agent
7a06ad52de
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根因分析： 1. 后端任务状态新增/历史脏值（pending/queued/unknown等）未在前端 normalizeTaskStatus映射中，fallback分支既不更新progress也不终止 轮询，导致视觉停在上一次progress（约56%） 2. 旧版轮询网络/5xx错误连续10次即终止，浏览器tab切后台被节流或 短暂网络抖动后永久停止轮询，用户看到的是停滞的旧progress 3. 浏览器后台tab的setTimeout被节流，切回前台时不会主动拉取最新状态， 必须等下一个定时器才能看到结果 4. 生成完成后需手动点击「下一步」，用户误以为仍在渲染 修复： - 新增normalizeTaskStatus兼容pending/queued/scheduled/processing/ rendering/unknown/complete/done等状态，pending阶段显示≤5%进度， unknown状态保持上次进度继续轮询 - 网络/5xx错误改为指数退避无限重试（最大15s间隔），连续5次错误弹 一次提示；4xx才终止（任务不存在/未授权） - visibilitychange监听：页面从后台切回立即触发一次poll，秒级看到最新状态 - unmount时useEffect cleanup兜底清理所有定时器和控制器 - 进度停滞探测（15s无变化自动缩短到3s再查），防后端最后progress回调丢失 - awaiting_cover阶段results接口write-after-read抖动：空结果补1.5s后再查 - 终态前强制onProgress(100)，避免UI停在95% - 生成完成（单视频finalVideo就绪/批量全部完成且至少一个成功）后延迟800ms 自动跳转到Step5封面选择页，无需手动点下一步 验证：tsc/eslint/prettier/vite build全通过