fix time and ignore duplciate scans in score keeping

public/js/timeago.js

@@ -18,7 +18,13 @@
 
   function updateTimes() {
     document.querySelectorAll('time[datetime]').forEach(function (el) {
-      var d = new Date(el.getAttribute('datetime'));
+      var raw = el.getAttribute('datetime');
+      // SQLite stores UTC dates without a 'Z' suffix — add it so the browser
+      // parses them as UTC instead of local time
+      if (raw && !/[Z+\-]\d{0,4}$/i.test(raw)) {
+        raw = raw.replace(' ', 'T') + 'Z';
+      }
+      var d = new Date(raw);
       if (!isNaN(d)) {
         el.textContent = timeAgo(d);
         el.title = d.toLocaleString();