feat: add strict mode and type validation to config

[Luffy2004-c]

• Implement strict mode to forbid extra fields in configuration
• Add comprehensive type validation for configuration fields
• Update documentation to explain new strict mode and validation features
• Add tests for type validation and strict mode functionality

This change enhances configuration safety by ensuring type correctness and preventing typos in configuration files through strict field validation.

Description

Related Issue

Type of Change

• 📚 Examples / docs / tutorials / dependencies update
• 🔧 Bug fix (non-breaking change which fixes an issue)
• 🥂 Improvement (non-breaking change which improves an existing feature)
• 🚀 New feature (non-breaking change which adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to change)
• 🔐 Security fix

Checklist

• I've read the CODE_OF_CONDUCT.md document.
• I've read the CONTRIBUTING.md guide.
• I've updated the code style using make codestyle.
• I've written tests for all new methods and classes that I created.
• I've written the docstring in Google format for all the methods and classes that I used.

[github-actions]

Hello @Luffy2004-c, thanks for opening your first pull request 😊! We really appreciate your work. Happy Coding 🎉🎊 !

[Luffy2004-c]