Kh/auth

[just-kato]

Here's a detailed pull request message with emojis for your project:

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🚀 Feature: MongoDB Setup and Authentication Routes

Description:
This pull request includes the following updates and enhancements:

1. 🔧 MongoDB Setup:

   • Configured the server to connect to MongoDB using Mongoose.
   • Set up environment variables for MongoDB URI and JWT secret.

2. 🛤️ Routes Setup:

   • Created routes for user signup and signin.
   • Implemented JWT authentication for secure user sessions.

3. 📝 Sign Up Component:

   • Developed the signup component to allow users to create an account.
   • Included validation and error handling for user inputs.
   • Ensured passwords are hashed before saving to the database.

4. 🔐 Sign In Component:

   • Developed the signin component for user authentication.
   • Implemented password comparison and JWT token generation for user sessions.
   • Added error handling for invalid credentials.

Changes Made:

• Added dotenv configuration for environment variables.
• Implemented Argon2 for password hashing and verification.
• Removed bcrypt dependencies and related code.
• Updated user schema and pre-save hook for password hashing.
• Verified successful authentication flow with new user data.
• Improved logging for signup and signin processes.

Testing:

• Verified MongoDB connection on server startup.
• Tested signup and signin routes using Postman.
• Confirmed JWT tokens are generated and verified correctly.
• Ensured proper error messages are displayed for various scenarios.

Notes:

• Ensure to add .env file with appropriate variables before running the server.
• Added .DS_Store to global .gitignore to prevent it from being staged in the future.

Related Issue:
Closes #123 (Replace with actual issue number if applicable)

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