feat:Chore/validation and config refactor

📝 Summary

This merge request improves backend stability, validation, and configuration clarity for the Strapi application.

✅ Changes Made

Added required field validation for Summer of AI content type

Improved environment configuration structure (.env updates)

Cleaned up and refactored package.json

Removed unused dependencies

Installed correct database driver

Improved project description for better maintainability

Strengthened backend configuration consistency

🎯 Why This Change?

Prevents incomplete or invalid data entries

Ensures secure environment configuration

Improves backend reliability

Cleans up dependency management

Aligns database configuration with actual setup

🚀 Impact

No breaking API changes

Improved developer experience

Improved data integrity

Cleaner and more maintainable backend

If you want a shorter version, here it is:

Backend Validation & Config Refactor

Improved backend stability by adding required field validations, refactoring configuration files, cleaning dependencies, and aligning database setup. Enhances maintainability and data integrity without breaking existing APIs.