Add a report runner implementation

Add a report runner implementation and do the necessary refactoring.

These are transient changes and should/can be only QA'd when integrated with the scheduler and when a worker service has been added to Rocky.

[x] All the commits in this PR are properly PGP-signed and verified.
[x] This PR only contains functionality relevant to the issue.
[ ] I have written unit tests for the changes or fixes I made.
[ ] I have checked the documentation and made changes where necessary.
[x] I have performed a self-review of my code and refactored it to the best of my abilities.
[ ] Tickets have been created for newly discovered issues.
[ ] For any non-trivial functionality, I have added integration and/or end-to-end tests.
[ ] I have informed others of any required .env changes files if required and changed the .env-dist accordingly.

Checklist for code reviewers:

Copy-paste the checklist from the docs/source/templates folder into your comment.

Copy-paste the checklist from the docs/source/templates folder into your comment.