feat: implement S3 resume upload for job applications

[LivingHopeDev]

Pull Request

Description

This PR implements the functionality to upload resumes to AWS S3 instead of storing them as raw strings. The feature enhances the job application process by ensuring resumes are securely stored and retrieved via URLs.

Related Issue

Fixes #(issue)

Type of Change

• feat: New feature

How Has This Been Tested?

• Unit tests
• Integration tests
• Manual tests

Test Evidence

Screenshots (if applicable)

Documentation Screenshots (if applicable)

Checklist

• My code follows the project's coding style
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published
• I have included a screenshot showing all tests passing
• I have included documentation screenshots (if applicable)

Additional Notes

Environment Variables to be Added in Production

To deploy this feature, please ensure the following AWS S3 credentials are added to the production environment:

AWS_ACCESS_KEY=<your-access-key>
AWS_SECRET_ACCESS_KEY=<your-secret-key>
AWS_REGION=<your-aws-region>
AWS_S3_BUCKET_NAME=<your-bucket-name>

[incredible-phoenix246]

LGTM but not just resume all files including images go to s3 effect the change

[incredible-phoenix246]

Nice work