[CHORE] Compute server - Improve unit test coverage

[shopewf]

Description

Increases unit test coverage of the compute server to 95% and fixes some of the coverage configurations

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Navigating to the compute server and running the testing command with coverage
uv run pytest --cov=. --cov-branch --cov-append --cov-report=html --cov-report=term-missing

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• 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 in downstream modules