WeKnora deployment source with the reviewed wiki identity, summary and recovery fixes

cli/internal/text/truncate.go

@@ -0,0 +1,35 @@
+package text
+
+import "github.com/mattn/go-runewidth"
+
+const ellipsis = "…"
+
+// Truncate cuts s to at most maxWidth display columns (CJK / emoji occupy
+// 2 columns; ASCII 1), appending "…" if truncated. Display width, not rune count.
+//
+// Edge cases:
+//
+//	maxWidth <= 0   -> ""
+//	s already fits  -> s returned unchanged
+//	ellipsis is 1 column, so truncate budget = maxWidth - 1
+func Truncate(maxWidth int, s string) string {
+	if maxWidth <= 0 {
+		return ""
+	}
+	if runewidth.StringWidth(s) <= maxWidth {
+		return s
+	}
+	if maxWidth == 1 {
+		return ellipsis
+	}
+	budget := maxWidth - 1 // reserve for ellipsis
+	w := 0
+	for i, r := range s {
+		rw := runewidth.RuneWidth(r)
+		if w+rw > budget {
+			return s[:i] + ellipsis
+		}
+		w += rw
+	}
+	return s + ellipsis
+}