주변 와이파이 표기와 스크롤 정리

public/assets/app.js

@@ -1346,7 +1346,6 @@
             return;
         }
 
-        const errors = Array.isArray(scan.errors) ? scan.errors : [];
         const observedMode = scan.observed_mode === 'all' ? t('wifiScanObservedAll') : `${scan.observed_hours || '-'}h`;
         const status = scan.enabled === false
             ? `${t('wifiScanDisabledWithHistory')} · ${observedMode}`
@@ -1361,7 +1360,7 @@
             const bandRows = networks.filter(row => row.band === band);
             return `
                 <section class="wifi-scan-band" data-band="${attr(band)}">
-                    <h3>${escapeHtml(band)} <span>${bandRows.length}${scan.total_found ? ` / ${scan.total_found}` : ''}</span></h3>
+                    <h3>${escapeHtml(band)} <span>${bandRows.length}${state.lang === 'ko' ? '개' : ''}</span></h3>
                     <div class="table-wrap compact">
                         <table class="wifi-scan-table">
                             <thead><tr><th>${escapeHtml(t('ssid'))}</th><th>BSSID</th><th>${escapeHtml(t('channel'))}</th><th>${escapeHtml(t('signal'))}</th><th>${escapeHtml(t('security'))}</th><th>${escapeHtml(t('observed'))}</th><th>WiFi</th><th>폭</th><th>속도</th><th>기능</th></tr></thead>
@@ -1388,16 +1387,10 @@
             `;
         }).join('');
 
-        const errorHtml = errors.length
-            ? `<div class="wifi-scan-errors">${errors.map(row => `<div><strong>${escapeHtml(row.band || row.iface || '-')}</strong> ${escapeHtml(row.reason || '-')}</div>`).join('')}</div>`
-            : '';
-
         els.wifiScan.innerHTML = `
             <div class="wifi-scan-head">
-                <h3>${escapeHtml(t('wifiScan'))}</h3>
                 <span>${status}</span>
             </div>
-            ${errorHtml}
             <div class="wifi-scan-grid">${groups}</div>
         `;
         requestAnimationFrame(() => {
@@ -1413,14 +1406,23 @@
 
     function wifiObservedText(row) {
         if (row?.observed_source === 'live') {
-            return row.last_seen_ms === null || row.last_seen_ms === undefined
-                ? '방금'
-                : `방금 (${row.last_seen_ms}ms)`;
+            return row?.last_seen_at ? `${timeAgo(secondsSinceLocalTime(row.last_seen_at))} · ${row.last_seen_at}` : '방금';
+        }
+        if (row?.last_seen_at) {
+            return `${timeAgo(secondsSinceLocalTime(row.last_seen_at))} · ${row.last_seen_at}`;
         }
         if (row?.observed_age_seconds !== null && row?.observed_age_seconds !== undefined) {
-            return `${timeAgo(row.observed_age_seconds)} · ${row.last_seen_at || '-'}`;
+            return `${timeAgo(row.observed_age_seconds)} · -`;
         }
-        return row?.last_seen_at || '-';
+        return '-';
+    }
+
+    function secondsSinceLocalTime(value) {
+        const text = String(value || '').trim();
+        if (!text) return 0;
+        const parsed = new Date(text.includes('T') ? text : text.replace(' ', 'T'));
+        if (Number.isNaN(parsed.getTime())) return 0;
+        return Math.max(0, Math.floor((Date.now() - parsed.getTime()) / 1000));
     }
 
     function wifiStandardText(row) {