docs: update Node.js version references to 22/24

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: kmelve

CLAUDE.md

@@ -11,7 +11,7 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
 This project uses a PR-based workflow with branch protection on `main`:
 
 - **No direct pushes to main** - All changes require a pull request
-- **CI must pass** - Tests run on Node 20 and 22
+- **CI must pass** - Tests run on Node 22 and 24
 - **Approval required** - At least 1 review needed before merge
 - **Conventional commits** - Use `feat:`, `fix:`, `docs:`, etc.
 

CONTRIBUTING.md

@@ -6,7 +6,7 @@ Thank you for your interest in contributing to boxfix! This document provides gu
 
 ### Prerequisites
 
-- Node.js 20 or later
+- Node.js 22 or later (LTS)
 - npm
 
 ### Getting Started
@@ -40,7 +40,7 @@ The `main` branch is protected with the following rules:
 
 - **Pull requests required** - All changes must go through a PR
 - **Approval required** - At least 1 approving review needed
-- **Status checks required** - CI must pass on Node 20 and 22
+- **Status checks required** - CI must pass on Node 22 and 24
 - **No force pushes** - History cannot be rewritten on main
 - **Stale reviews dismissed** - New commits invalidate previous approvals