Sidebar: route names in navigation array didn't match actual registered
routes (e.g. 'participants.index' vs 'participants.list'). Remapped all
entries to match the real route names from route:list.

Login: replaced `redirect(navigate: true)` with `redirectIntended()` —
Livewire SPA navigation between different layouts (guest→app) fails
silently, requiring a manual page refresh.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>