The Login/Registration Controller (The Entry Point)

[Stelle83]

As a system user,
I want to create an account and have the system recognize me so that my actions (comments/tasks) are linked to my profile.

Tasks:

• Create CreateUserRequest DTO for registration (includes password field???)..

• Implement AuthController with /register and /login endpoints. (test with Insomnia)

• Update UserService to handle password hashing (BCrypt).

• Create AuthenticationService with getCurrentUser() to bridge Spring Security and our Database.

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POST /auth/register: Takes a UserDTO, hashes the password, and saves it.
POST /auth/login: Verifies the email and password (using BCryptPasswordEncoder (????)).