fix: make home video results playable

web/app/page.tsx

@@ -530,8 +530,11 @@ export default function Home() {
                     objectFit="cover"
                     previewObjectFit="contain"
                     className="aspect-video w-full rounded-xl"
+                    videoControls={latestVideo.status === "completed"}
                     label={latestVideo.model}
                     meta={`${latestVideo.status} · ${Math.round(latestVideo.progress)}%`}
+                    previewDetail={latestVideo.error || undefined}
+                    emptyText={latestVideo.status === "failed" ? "失败" : undefined}
                     busy={latestVideo.status === "queued" || latestVideo.status === "in_progress"}
                     onDelete={() => deleteVideo(latestVideo)}
                   />

web/components/media-asset-tile.tsx

@@ -33,6 +33,7 @@ type MediaAssetTileProps = {
   previewClassName?: string
   previewPlacement?: MediaAssetPreviewPlacement
   previewMaxWidth?: number
+  videoControls?: boolean
   selected?: boolean
   disabled?: boolean
   busy?: boolean
@@ -94,6 +95,7 @@ export function MediaAssetTile({
   previewClassName = "",
   previewPlacement = "auto",
   previewMaxWidth = 520,
+  videoControls = false,
   selected = false,
   disabled = false,
   busy = false,
@@ -122,7 +124,7 @@ export function MediaAssetTile({
   }
 
   const media = kind === "video" && src ? (
-    <video src={src} poster={poster} muted playsInline preload="metadata" className={`h-full w-full ${fit} ${mediaClassName}`} />
+    <video src={src} poster={poster} muted playsInline controls={videoControls} preload="metadata" className={`h-full w-full ${fit} ${mediaClassName}`} />
   ) : mediaSrc ? (
     <img src={mediaSrc} alt={alt} className={`h-full w-full ${fit} ${mediaClassName}`} />
   ) : (