minor UI fix, minot data processing improvements

UI/client/src/components/HistoryModal.vue

@@ -147,20 +147,24 @@ const renderChart = () => {
         {
           label: !isSpeedMode.value ? 'Received (MB)' : 'RX Mbps',
           data: dataRx,
-          borderColor: '#27ae60',
-          backgroundColor: 'rgba(39, 174, 96, 0.1)',
+          borderColor: '#3fb950',
+          backgroundColor: 'rgba(63, 185, 80, 0.15)',
           borderWidth: 2,
           fill: true,
-          tension: 0.3
+          tension: 0.3,
+          pointRadius: 3,
+          pointHoverRadius: 4
         },
         {
           label: !isSpeedMode.value ? 'Sent (MB)' : 'TX Mbps',
           data: dataTx,
-          borderColor: '#2980b9',
-          backgroundColor: 'rgba(41, 128, 185, 0.1)',
+          borderColor: '#58a6ff',
+          backgroundColor: 'rgba(88, 166, 255, 0.15)',
           borderWidth: 2,
           fill: true,
-          tension: 0.3
+          tension: 0.3,
+          pointRadius: 3,
+          pointHoverRadius: 4
         }
       ]
     },

UI/client/src/composables/useFormatters.js

@@ -14,11 +14,25 @@ export function useFormatters() {
 
     function parseServerDate(dateStr) {
         if (!dateStr) return null;
-        let isoStr = dateStr.replace(' ', 'T');
-        if (!isoStr.endsWith('Z') && !isoStr.includes('+')) {
-            isoStr += 'Z';
+        // Handle ISO strings with Z
+        if (dateStr.endsWith('Z')) return new Date(dateStr);
+        
+        // Assume format YYYY-MM-DD HH:MM:SS (standard backend output)
+        const [datePart, timePart] = dateStr.split(' ');
+        if (!datePart || !timePart) {
+            // Fallback for other formats
+             let isoStr = dateStr.replace(' ', 'T');
+            if (!isoStr.endsWith('Z') && !isoStr.includes('+')) {
+                isoStr += 'Z';
+            }
+            return new Date(isoStr);
         }
-        return new Date(isoStr);
+        
+        const [y, m, d] = datePart.split('-').map(Number);
+        const [h, min, s] = timePart.split(':').map(Number);
+        
+        // Construct Date in UTC
+        return new Date(Date.UTC(y, m - 1, d, h, min, s !== undefined ? s : 0));
     }
 
     return {

UI/client/src/views/Analytics.vue

@@ -304,7 +304,7 @@ const renderMainChart = () => {
                     borderWidth: 2,
                     fill: true,
                     tension: 0.3,
-                    pointRadius: 0,
+                    pointRadius: 3,
                     pointHoverRadius: 4
                 },
                 {
@@ -315,7 +315,7 @@ const renderMainChart = () => {
                     borderWidth: 2,
                     fill: true,
                     tension: 0.3,
-                    pointRadius: 0,
+                    pointRadius: 3,
                     pointHoverRadius: 4
                 }
             ]