From Request-scoped to hopefully ALS

[G0maa]

• Refer to docs for suggested solutions.
• Request scoped everything hinders performance a bit.
• And it can't be used with websockets (?).
• And I can't run tests without doing this, and I can't use DrizzleService in setup.ts because it doesn't have access to jest mocks.
• Suggested solution: use Node.js Async Local Storage (if possible (?)).