- Initialize isRegistering state from URL query parameter (mode=register) - Update URL when toggling between login/register modes for shareable links - Remove duplicate useRoute() calls in login/register handlers - Ensures all Register buttons throughout the app show the registration form This fixes the issue where Register links navigated to /login?mode=register but the login page ignored the mode parameter and showed the login form instead. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>