feat(ui): home dashboard ala mirador — jam blok, panel judul-di-border, metrik docker+host, navigasi 0/1

internal/app/ansi.go

@@ -0,0 +1,77 @@
+package app
+
+import (
+	"strings"
+
+	"charm.land/lipgloss/v2"
+)
+
+// ansiTruncate — potong string ber-ANSI ke lebar tampilan w (sel), aman
+// terhadap escape sequence; bila terpotong ditutup reset + "…".
+// Dipakai panel() agar konten tidak pernah wrap (tinggi panel tetap).
+func ansiTruncate(s string, w int) string {
+	if w <= 0 {
+		return ""
+	}
+	if lipgloss.Width(s) <= w {
+		return s
+	}
+	const (
+		stNormal = iota
+		stEsc
+		stCSI
+		stOSC
+		stOSCEsc
+	)
+	state := stNormal
+	width := 0
+	var b strings.Builder
+	for _, r := range s {
+		switch state {
+		case stNormal:
+			if r == 0x1b {
+				state = stEsc
+				b.WriteRune(r)
+				continue
+			}
+			if width >= w-1 { // sisakan satu sel untuk "…"
+				b.WriteString("\x1b[0m…")
+				return b.String()
+			}
+			b.WriteRune(r)
+			width++
+		case stEsc:
+			b.WriteRune(r)
+			switch {
+			case r == '[':
+				state = stCSI
+			case r == ']':
+				state = stOSC
+			case r >= 0x20 && r <= 0x2f:
+				// intermediate — tunggu final byte
+			default:
+				state = stNormal
+			}
+		case stCSI:
+			b.WriteRune(r)
+			if r >= 0x40 && r <= 0x7e {
+				state = stNormal
+			}
+		case stOSC:
+			b.WriteRune(r)
+			if r == 0x07 {
+				state = stNormal
+			} else if r == 0x1b {
+				state = stOSCEsc
+			}
+		case stOSCEsc:
+			b.WriteRune(r)
+			if r == '\\' {
+				state = stNormal
+			} else {
+				state = stOSC
+			}
+		}
+	}
+	return b.String()
+}