feat: reduce project and checkpoint http calls

What does this merge request do and why?

This MR reduces the extra call to the project endpoint by calling a graphql endpoint instead of the REST endpoint. It also reduces the number of times the checkpoint entry point calls rails thus improving performance.

• Related Rails MR is here.
• Related Issue

How to set up and validate locally

• Use Case 1. Create a number of messages in Agentic chat
• Use Case 2. Run a duo Workflow, stop, and resume the workflow

Merge request checklist

• Tests added for new functionality. If not, please raise an issue to follow up.
• Documentation added/updated, if needed.