[Stats Page] - Endpoint Files Creation

[wavehassman]

Description

Need to have graph and graph collection controllers, queryArgs, routes, services and transformers files in backend, and shared types to be able to make endpoints

Acceptance Criteria

Have files set up for graph and graph collection in controllers, queryArgs, routes, services, and transformers in the backend, and shared types

Proposed Solution

Look at other file setups in these folders

Mocks

No response