Commit 1864102

feat(tui): analytics now displays device breakdown

You can see mobile vs desktop

 1@@ -257,6 +257,10 @@ func (m *AnalyticsPage) Draw(ctx vxfw.DrawContext) (vxfw.Surface, error) {
 2 		rightSurf.AddChild(0, ah, urlSurf)
 3 		ah += int(urlSurf.Size.Height)
 4 
 5+		deviceSurf, _ := m.devices(rightCtx, data.Intervals).Draw(rightCtx)
 6+		rightSurf.AddChild(0, ah, deviceSurf)
 7+		ah += int(deviceSurf.Size.Height)
 8+
 9 		surf, _ := m.visits(rightCtx, data.Intervals).Draw(rightCtx)
10 		rightSurf.AddChild(0, ah, surf)
11 
12@@ -327,6 +331,31 @@ func (m *AnalyticsPage) urls(ctx vxfw.DrawContext, urls []*db.VisitUrl, label st
13 	return rightPane
14 }
15 
16+func (m *AnalyticsPage) devices(ctx vxfw.DrawContext, intervals []*db.VisitInterval) vxfw.Widget {
17+	mobile, desktop := 0, 0
18+	for _, visit := range intervals {
19+		mobile += visit.MobileVisitors
20+		desktop += visit.DesktopVisitors
21+	}
22+	total := mobile + desktop
23+	mobilePct := 0.0
24+	desktopPct := 0.0
25+	if total > 0 {
26+		mobilePct = float64(mobile) / float64(total) * 100
27+		desktopPct = float64(desktop) / float64(total) * 100
28+	}
29+	kv := []Kv{
30+		{Key: "mobile", Value: fmt.Sprintf("%d (%.1f%%)", mobile, mobilePct)},
31+		{Key: "desktop", Value: fmt.Sprintf("%d (%.1f%%)", desktop, desktopPct)},
32+	}
33+	wdgt := NewKv(kv)
34+	rightPane := NewBorder(wdgt)
35+	rightPane.Width = ctx.Max.Width
36+	rightPane.Label = "devices"
37+	m.focusBorder(rightPane)
38+	return rightPane
39+}
40+
41 func (m *AnalyticsPage) visits(ctx vxfw.DrawContext, intervals []*db.VisitInterval) vxfw.Widget {
42 	kv := []Kv{}
43 	w := 0