feat: 添加遮罩筛选

Co-authored-by: Copilot <copilot@github.com>

app/hosts/[hostname]/components/ScreenTimeTab.tsx

@@ -141,9 +141,6 @@ export default function ScreenTimeTab({ hostname }: ScreenTimeTabProps) {
             <h2 className="mt-2 text-2xl font-semibold text-gray-900 dark:text-white">
               {periodLabel}
             </h2>
-            <p className="mt-1 text-sm text-gray-500 dark:text-gray-400">
-              切换日期时会自动取消上一条请求，图表与排行保持同步刷新。
-            </p>
           </div>
 
           <div className="flex flex-col gap-3 sm:flex-row sm:items-center">
@@ -296,6 +293,10 @@ export default function ScreenTimeTab({ hostname }: ScreenTimeTabProps) {
                           <span>{app.percentage}%</span>
                         </div>
 
+                        <div className="mt-2 truncate text-xs text-gray-500 dark:text-gray-400" title={app.processPath || '路径未知'}>
+                          路径: {app.processPath || '路径未知'}
+                        </div>
+
                         <div className="mt-3 h-2 overflow-hidden rounded-full bg-gray-100 dark:bg-gray-700">
                           <div
                             className="h-full rounded-full bg-blue-600 dark:bg-blue-500"