feat: update

frontend/admin/src/utils/date.js

@@ -14,3 +14,24 @@ dayjs.extend(timezone);
 export function formatDate(date) {
     return dayjs.tz(date, 'Asia/Shanghai').format('YYYY-MM-DD HH:mm:ss');
 }
+
+/**
+ * Format seconds to readable duration string
+ * @param {number} seconds - Number of seconds
+ * @returns {string} Formatted duration string (e.g., "2h 30m 15s")
+ */
+export function formatDuration(seconds) {
+    if (!seconds || seconds < 0) return '0 秒';
+
+    const hours = Math.floor(seconds / 3600);
+    const minutes = Math.floor((seconds % 3600) / 60);
+    const remainingSeconds = Math.floor(seconds % 60);
+
+    const parts = [];
+    if (hours > 0) parts.push(`${hours} 时`);
+    if (minutes > 0) parts.push(`${minutes} 分`);
+    if (remainingSeconds > 0 || parts.length === 0) parts.push(`${remainingSeconds} 秒`);
+
+    return parts.join(' ');
+}
+