fix: add JS fallbacks for wrapTextWithAnsi and visibleWidth when native addon unavailable (#1418) (#1428)

On older Linux distributions (e.g., RHEL 8 with older glibc), the native
Rust addon fails to load. The proxy throws on every function call, but
wrapTextWithAnsi and visibleWidth in pi-tui had no JS fallback — causing
an uncaught crash during TUI rendering.

Fix: Both functions now catch native throws and fall back to JS
implementations (simple word-wrap and ANSI-strip length).

Fixes #1418

packages/pi-tui/src/utils.ts

@@ -85,7 +85,12 @@ export function extractAnsiCode(str: string, pos: number): { code: string; lengt
  * Delegates to the native Rust implementation.
  */
 export function visibleWidth(str: string): number {
-	return nativeVisibleWidth(str);
+	try {
+		return nativeVisibleWidth(str);
+	} catch {
+		// JS fallback — strip ANSI codes and return length (#1418)
+		return str.replace(/\x1b\[[0-9;]*m/g, "").length;
+	}
 }
 
 /**
@@ -97,7 +102,28 @@ export function visibleWidth(str: string): number {
  * @returns Array of wrapped lines (NOT padded to width)
  */
 export function wrapTextWithAnsi(text: string, width: number): string[] {
-	return nativeWrapTextWithAnsi(text, width);
+	try {
+		return nativeWrapTextWithAnsi(text, width);
+	} catch {
+		// JS fallback when native addon is unavailable (e.g., glibc mismatch on older Linux) (#1418)
+		const lines: string[] = [];
+		for (const line of text.split("\n")) {
+			if (line.length <= width) {
+				lines.push(line);
+			} else {
+				// Simple word-wrap without ANSI awareness
+				let remaining = line;
+				while (remaining.length > width) {
+					const breakAt = remaining.lastIndexOf(" ", width);
+					const splitPoint = breakAt > 0 ? breakAt : width;
+					lines.push(remaining.slice(0, splitPoint));
+					remaining = remaining.slice(splitPoint).trimStart();
+				}
+				if (remaining) lines.push(remaining);
+			}
+		}
+		return lines;
+	}
 }
 
 /**