统一图片与视频副本的生成落点并保留参考连接。\n优化大型画布节点虚拟化、媒体懒加载、拖拽与详情进入路径。\n修复素材主版本 ID 同步及删除时的画布独立引用校验。
Merge origin/main at fb089b2 and retain canvas media performance, player layout, and interaction updates. Co-authored-by: ddCat <2695092045@qq.com>
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