Refactor controllers to reduce business-logic coupling (starting with create-room)

[aditi25srivastava]

• Context
  Certain backend controllers nowadays include extensive business logic.
  which is tightly integrated with HTTP processing in a domain and makes testing
  and, hence, management.

• exemple concret
  In functions/create-room/src/main.js, the

• Creates room metadata based on input parameters

• Calls LiveKit to create a room

• Stores room data with Appwrite
  There is a blending of handling requests and orchestrating business domains.

• Proposal
  As a first, well-scoped step:

• Abstract room creation logic into a service/use case. Keep the controller concerned with request parsing and response handling. This will be a non-breaking refactor**, starting with one controller. I will proceed further with examples only if I receive feedback on what I

[aditi25srivastava]

please @M4dhav assign me to this issue.

[aditi25srivastava]

hey @M4dhav Could you please review it and assign it to me so that I can begin working on it?