修复后台角色动作预览换签缓存

将序列帧 signed URL、解析与加载状态统一上移到预览父组件。

按当前序列限制缓存并在序列、token 或弹窗生命周期结束时清理在途请求。

新增跨三帧窗口延迟换签与回绕复用的回归测试,并同步架构文档。
This commit is contained in:
2026-08-05 14:25:59 +08:00
parent ff582404d1
commit a3d3a1b8ba
3 changed files with 475 additions and 85 deletions
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