复用项目卡片预览组件

项目卡片预览改为复用 PlatformMediaFrame

删除项目页局部预览框比例和图片填充样式

更新 TRACKING 记录媒体预览组件收口

src/components/project/ProjectGalleryView.tsx

@@ -24,6 +24,7 @@ import {
   PlatformFloatingMenuItem,
 } from '../common/PlatformFloatingMenu';
 import { PlatformIconButton } from '../common/PlatformIconButton';
+import { PlatformMediaFrame } from '../common/PlatformMediaFrame';
 import { PlatformStatusMessage } from '../common/PlatformStatusMessage';
 import { PlatformTextField } from '../common/PlatformTextField';
 import { UnifiedModal } from '../common/UnifiedModal';
@@ -214,18 +215,21 @@ export function ProjectGalleryView({ onOpenProject }: ProjectGalleryViewProps) {
               }}
               aria-label={`打开项目${project.title}`}
             >
-              <span className="project-gallery__preview">
-                {preview ? (
-                  <img src={preview.imageSrc} alt="" />
-                ) : (
-                  <span className="project-gallery__preview-empty" />
-                )}
+              <PlatformMediaFrame
+                src={preview?.imageSrc}
+                alt=""
+                fallbackLabel="项目"
+                aspect="standard"
+                surface="bright"
+                className="project-gallery__preview"
+                fallbackContent={<span className="project-gallery__preview-empty" />}
+              >
                 {isSelectionMode ? (
                   <span className="project-gallery__checkbox">
                     {selected ? <Check className="h-4 w-4" /> : null}
                   </span>
                 ) : null}
-              </span>
+              </PlatformMediaFrame>
               <span className="project-gallery__meta">
                 <span>{project.title}</span>
                 <span>{formatProjectUpdatedAt(project.updatedAt)}</span>