fix: 还原系统时区方案 — 时间戳已自带+08:00

ethend/src/index.js

@@ -1907,19 +1907,12 @@ server.listen(ETHEND_PORT, () => {
   }
 });
 
-// 时间格式化：始终显示 UTC+8 (Asia/Shanghai)
+// 时间格式化：使用系统本地时区
 function formatLocalTime(ts) {
   var d = new Date(ts);
   var pad = function(n) { return n < 10 ? '0' + n : '' + n; };
-  // Force UTC+8 regardless of system timezone
-  var utcH = d.getUTCHours();
-  var utcM = d.getUTCMinutes();
-  var utcS = d.getUTCSeconds();
-  var localH = (utcH + 8) % 24;
-  var dayOffset = Math.floor((utcH + 8) / 24);
-  var localD = new Date(Date.UTC(d.getUTCFullYear(), d.getUTCMonth(), d.getUTCDate() + dayOffset));
-  return localD.getUTCFullYear() + '-' + pad(localD.getUTCMonth()+1) + '-' + pad(localD.getUTCDate()) + ' ' +
-    pad(localH) + ':' + pad(utcM) + ':' + pad(utcS);
+  return d.getFullYear() + '-' + pad(d.getMonth()+1) + '-' + pad(d.getDate()) + ' ' +
+    pad(d.getHours()) + ':' + pad(d.getMinutes()) + ':' + pad(d.getSeconds());
 }
 
 // 优雅退出