feat: refactor views to use DRF status codes, consistent responses, a…

[alloy77]

…nd serializer validation
This pull request refactors the application’s views to:

• Use Django REST Framework’s status codes for all responses
• Ensure consistent use of Response objects
• Improve error handling by catching specific exceptions
• Validate input data using serializers for both creation and updates
• Remove unnecessary imports and redundant code
  These changes enhance code readability, maintainability, and API reliability.

[pratik-mahalle]

Hey @alloy77, Thank you for raising the pr. Our team will review the changes soon.

[pratik-mahalle]

Great refactor! Here are a few suggestions to further improve the code:

You’ve switched to using DRF’s Response and appropriate status codes, which is excellent. However, consider returning more informative error messages for validation errors (in POST/PUT) rather than just the serializer errors, especially if they could be nested or unclear to API consumers.

[pratik-mahalle]

Overall good pr @alloy77