Show default history on map

js/main.js

@@ -666,8 +666,8 @@ document.addEventListener('DOMContentLoaded', () => {
                 endTime: toServerTime(endEl.value)
             };
 
-            // ✅ 사용자가 변경했거나 URL에 기간이 있으면 히스토리 모드
             const shouldUseHistory = userTriggered || hasQS;
+            const shouldRequestHistory = shouldUseHistory || !userTriggered;
             if (shouldUseHistory) {
                 _overrideRange = range;
                 resetHistoryLayer();
@@ -676,13 +676,16 @@ document.addEventListener('DOMContentLoaded', () => {
             }
 
             try {
-                const data = await fetchDeviceData(true, shouldUseHistory ? range : null);
+                const data = await fetchDeviceData(true, shouldRequestHistory ? range : null);
                 updateDOMWithData(data);
-
-                const last = data.history && data.history[data.history.length - 1];
-                if (last && mapState.map) {
-                    mapState.map.panTo(new naver.maps.LatLng(last.lat, last.lng));
-                }
+                if (!shouldUseHistory && data.history?.length > 0) {
+                    updateHistoryMarkers(data.history);
+                }
+
+                const last = data.history && data.history[data.history.length - 1];
+                if (shouldUseHistory && last && mapState.map) {
+                    mapState.map.panTo(new naver.maps.LatLng(last.lat, last.lng));
+                }
             } catch (err) {
                 alert(langCode === 'ko' ? '기록을 불러오지 못했습니다.' : 'Failed to load history.');
             }
@@ -1528,7 +1531,7 @@ function updateHistoryMarkers(history) {
     mapState.historyStartMarker = makeMarker(first, 'start');
     mapState.historyEndMarker = makeMarker(last, 'end');
 
-    const maxDots = 60;
+    const maxDots = 180;
     const step = Math.max(1, Math.ceil(points.length / maxDots));
     points.forEach((pos, idx) => {
         if (idx === 0 || idx === points.length - 1 || idx % step !== 0) return;
@@ -1693,7 +1696,7 @@ function fetchDeviceData(includeLang = true, range = null) {
     if (e) params.set('endTime', e);
     if (hasHistoryRange) {
         params.set('history', '1');
-        params.set('maxPoints', '300');
+        params.set('maxPoints', '800');
     }
 
     const url = `https://chaegeon.com/custom/findmydevice/php/api.php?${params.toString()}`;