The category tabs were not filtering because the generic tab event handler
was overwriting currentFilter with undefined (category tabs use data-category
not data-filter). Fixed by targeting only [data-filter] tabs and clearing
categoryFilter when switching to non-category tabs.
Added proper ARIA attributes for screen reader accessibility:
- role="tablist" on nav-tabs container
- role="tab" and aria-selected on all tab buttons
- Dynamic aria-selected updates on tab clicks
Also includes API support for category field and deploy script update.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
