Created comprehensive user details page at /admin/utilisateurs/[id] that
displays contact information, personal data, account status, and ticket
statistics. Added getUserById method to admin service to fetch detailed
user information from the backend API. Fixes the "Détails" button that
was previously navigating to a non-existent page.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Replace HeadersInit type with Record<string, string> for headers object to allow index access with bracket notation. This resolves the TypeScript error "Property 'Authorization' does not exist on type 'HeadersInit'".
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
