feat(auth): implement JWT authentication and user registration

- Added JWT authentication with token generation and validation.
- Introduced user registration functionality with email and password.
- Integrated Argon2 for password hashing.
- Created SQLite user repository for user data persistence.
- Updated application context to include user repository and configuration settings.
- Added environment variable support for JWT secret and registration allowance.
- Enhanced error handling for unauthorized access and validation errors.
- Updated presentation layer to handle login and registration requests.

crates/domain/src/models/mod.rs

@@ -250,6 +250,10 @@ impl User {
         }
     }
 
+    pub fn from_persistence(id: UserId, email: Email, password_hash: PasswordHash) -> Self {
+        Self { id, email, password_hash }
+    }
+
     pub fn update_password(&mut self, new_hash: PasswordHash) {
         self.password_hash = new_hash;
     }