修复画板私有素材预览

让生成参考图和角色动作参考图通过 objectKey 换签显示

让视频图层 poster 与框选预览复用签名读取

补充参考槽、框选预览和视频图层回归测试

沉淀框选预览换签缓存踩坑

src/components/image-editor/ImageCanvasCharacterGenerationComposerView.tsx

@@ -70,6 +70,7 @@ function ReferenceChip({
       tone="character"
       icon={<ImagePlus className="h-4 w-4" aria-hidden="true" />}
       imageSrc={reference.src}
+      objectKey={reference.objectKey}
       label={label}
       ariaLabel={label}
       title={reference.label}
@@ -127,6 +128,7 @@ export function ImageCanvasCharacterGenerationComposerView({
           tone="spec"
           icon={<ClipboardList className="h-4 w-4" aria-hidden="true" />}
           imageSrc={dialog.characterSpecReference?.src}
+          objectKey={dialog.characterSpecReference?.objectKey}
           label="角色规范"
           ariaLabel={dialog.characterSpecReference?.label ?? '角色规范'}
           title={dialog.characterSpecReference?.label ?? '角色规范'}