[WIP] Implement User Authentication Feature

[HermanKoii]

Implement User Authentication Feature

Description

Task

Develop a user authentication system with the following core functionalities:

1. User registration with email and password
2. User login mechanism
3. Password hashing and security
4. Basic authentication middleware
5. JWT token generation and validation

Acceptance Criteria

• Users can successfully register with a unique email
• Registered users can log in with correct credentials
• Passwords are securely hashed
• JWT tokens are generated and validated correctly
• Protected routes can only be accessed with valid authentication

Summary of Work

This pull request adds a complete user authentication system including registration, login, and basic security features.

Changes Made

• Created user model with email and password fields
• Implemented user registration endpoint
• Added login authentication endpoint
• Implemented password hashing using bcrypt
• Created JWT token generation and validation service
• Added authentication middleware for protected routes

Tests

• Test user registration with valid credentials
• Test user registration with duplicate email
• Test user login with correct credentials
• Test user login with incorrect password
• Verify password hashing works correctly
• Test JWT token generation and validation
• Verify authentication middleware blocks unauthorized access

Signatures

Staking Key

test: test

Public Key

test: test

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