Changed from old buttons=[] parameter to action_label/action_onclick parameters which are the correct API for page_header macro. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Add vendor messages API endpoints (/api/v1/vendor/messages) - Add vendor messages page route (/vendor/{code}/messages) - Add messages.html template for vendor portal - Add messages.js Alpine component - Add Messages link to vendor sidebar under Sales section 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
