[FEAT] Add Facebook OAuth

[mmubarak0]

Description

Implement Facebook OAuth authentication to allow users to log in using their Facebook credentials.

Acceptance Criteria

• Users can log in using their Facebook account.
• OAuth flow is secure and meets industry standards.
• The system correctly handles user data returned by Facebook.
• Proper error handling is in place for authentication failures.
• Ensure compliance with endpoint naming and payload/response object standards.

Tasks

• [ ] Integrate Facebook OAuth API.
• [ ] Create backend endpoints to handle OAuth authentication api/v1/auth/facebook-login
• [ ] Secure storage of OAuth tokens.
• [ ] Ensure payload/response objects as follow { "message": string, "status_code": number }
• [ ] Ensure compliance with Facebook’s OAuth policies.

Purpose

To enhance user experience by providing an additional authentication method through Facebook, making it easier for users to log in.

Requirements

• Integrate Facebook OAuth API.
• Backend endpoints to handle OAuth authentication using kebab case (e.g., api/v1/auth/facebook-login).
• Secure storage of OAuth tokens.
• Ensure payload/response objects use snake case (e.g., { "message": string, "status_code": number }).
• Ensure compliance with Facebook's OAuth policies.

Expected Outcome

• Users are able to log into the application using their Facebook credentials.
• Enhanced user convenience and potentially increased user base.

[mmubarak0]

@buka4rill could you label this issue for review?

[mmubarak0]

@prondubuisi Can you confirm this review so we could start working on it ?