[TASK] Cleanup/refactor the blueprint manager code

[tbraun96]

The blueprint manager provably works for sources such as Testing. However, other modes have not fully been tested such as GitHub. Furthermore, there are areas of the codebase that contain TODOs and a heavy cognitive load, making maintainability and the likelihood of bug introduction higher. Furthermore, we are passing more CLI params instead of relying on ENV vars now (except REGISTRATION_MODE) as an improvement, but should seek to remove env vars entirely and delegate this to the blueprint manager to pass as CLI args.

Logging can be improved by downgrading many INFOs to TRACEs