Fix admin/supervisor user creation defaulting to citizen role

[Copilot]

Admin and supervisor users created from the dashboard were being registered with the 'citizen' role, preventing sign-in due to authorization checks.

Root Cause

The web app used /api/auth/sign-up/email, which ignores the role parameter and applies Better Auth's defaultRole: 'citizen'.

Changes

API: New /api/admin/users endpoint

• Added AdminService.createUser() using Better Auth admin plugin's createUser API which respects role parameter
• Schema validates role enum: 'admin' | 'supervisor' | 'driver'
• Protected by auth middleware (admin/supervisor/owner only)

Web: Updated signup action

// Before: ignores role parameter
await api.post('/api/auth/sign-up/email', { name, email, password, role });

// After: respects role parameter
await api.post('/api/admin/users', { name, email, password, role });

The fix ensures users are created with their assigned role and can authenticate successfully.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• mise.run
  • Triggering command: curl REDACTED (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

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This section details on the original issue you should resolve

<issue_title>bug: admin added as citizen from the dashboard</issue_title>
<issue_description>At adding an admin role, registration is possible. However at singin, toast indicates unauthorized.</issue_description>

Comments on the Issue (you are @copilot in this section)

@totallynotdavid haz pull, en el nuevo PR deberia de estar andando todo bien? @PedroRojasF Sí, me aseguré de hacer pull, ya no aparece el botón de añadir usuario. Voy a agregar un botón en la sección de Configuración @PedroRojasF

Al crear role tipo admin se redirecciona al signin y no se permite el acceso. Queda pendiente revisar por qué se registra como citizen en la base de datos a quien se está registrando como admin</comment_new>

• Fixes bug: admin added as citizen from the dashboard #70

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