PrestaShop Authentication with Keycloak -- 2

We need to replace PrestaShop’s default authentication system with our existing Keycloak setup.
We already use Keycloak for authentication in our Laravel applications and want to unify login across all platforms.
The goal: enable customers and staff to log in with Keycloak instead of PrestaShop’s native login.
We require clean implementation and documentation so our team can maintain it afterwards.

We also want to extend authentication by:
- Allowing login via Google and Facebook
- Adding support for a biometric authentication system for sensitive areas (e.g., account validation, checkout security, or admin actions)

Requirements
- Strong knowledge of PHP
- Experience with PrestaShop module development
- Hands-on experience with Keycloak integration (OIDC / SAML)

Deliverables
- PrestaShop authentication fully migrated to Keycloak
- Social login integration (Google & Facebook)
- Biometric authentication setup for critical workflows
- Link with our apps + errors handling
- Documentation on configuration, maintenance, and future extensions