perf: optimize app startup and background lifecycles

src/pages/Chat/GameAssetBrowser.tsx

@@ -144,7 +144,7 @@ export function GameAssetBrowser(props: {
         <p className="text-pretty text-sm font-medium">素材卡片暂时无法加载，不影响继续对话</p>
         <Button
           type="button"
-          className="h-10 shrink-0 border border-foreground/15 bg-brand-soft font-semibold text-foreground transition-transform active:scale-[0.985]"
+          className="h-10 shrink-0 border border-foreground/15 bg-brand-soft font-semibold text-foreground"
           onClick={() => void load()}
         >
           <RefreshCw className="mr-1 h-4 w-4" />重新加载