fix: show actual timestamps in debug log viewer

The Naplóviewer was showing relative times like '3586mp' (seconds ago)
which were also negative due to timezone mismatch — parseLine used
time.Parse (UTC) but log.LstdFlags outputs local time. Now:
- parseLine uses time.ParseInLocation with time.Local
- fmtTime JS shows absolute HH:MM:SS (or MM-DD HH:MM:SS for old entries)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

controller/internal/web/logbuffer.go

@@ -111,8 +111,9 @@ func parseLine(line string) LogEntry {
 	}
 
 	// Try to parse timestamp: "2006/01/02 15:04:05"
+	// Use Local timezone because Go's log.LstdFlags outputs in local time.
 	if len(line) >= 19 {
-		if t, err := time.Parse("2006/01/02 15:04:05", line[:19]); err == nil {
+		if t, err := time.ParseInLocation("2006/01/02 15:04:05", line[:19], time.Local); err == nil {
 			entry.Timestamp = t
 			rest := line[19:]
 			if len(rest) > 0 && rest[0] == ' ' {

controller/internal/web/templates/debug.html

@@ -698,12 +698,11 @@ function fmtTime(ts) {
     if (!ts) return '-';
     var d = new Date(ts);
     if (isNaN(d.getTime())) return ts;
+    var pad = function(n) { return n < 10 ? '0' + n : n; };
     var now = new Date();
-    var diff = Math.floor((now - d) / 1000);
-    if (diff < 60) return diff + 'mp';
-    if (diff < 3600) return Math.floor(diff/60) + 'p';
-    if (diff < 86400) return Math.floor(diff/3600) + 'ó ' + Math.floor((diff%3600)/60) + 'p';
-    return d.toLocaleString('hu-HU');
+    var time = pad(d.getHours()) + ':' + pad(d.getMinutes()) + ':' + pad(d.getSeconds());
+    if (d.toDateString() === now.toDateString()) return time;
+    return pad(d.getMonth()+1) + '-' + pad(d.getDate()) + ' ' + time;
 }
 function escapeHtml(s) {
     var d = document.createElement('div');