Draft: Abstraction Layer File Scaffolder

What does this MR do and why?

In actually following the documentation step-by-step, a lot of what's documented can really be scaffolded. I was able to get a nearly working prototype running - I just couldn't figure out the frontend.

This scaffolding got as far as I was able to on the backend with a dummy prompt (testing with GraphQL).

Info

This is a Rails generator based on the existing usage metric generator - team!! 🙏

Run with

Replace TodoPlanningTest with your class name, eg: CoolFeature

Note:: The only provider supported right now is Vertex

rails generate gitlab:abstraction_layer:abstraction_layer TodoPlanningTest --provider vertex

Confirm working by

1. Visit http://localhost:3000//-/graphql-explorer
2. Tail the llm log in the gdk/gitlab directory tail -f log llm.log
3. Run this:

mutation {
  aiAction(
    input: {
      todoPlanningTest: {
        resourceId: "gid://gitlab/User/1",
        userInput:"My input here"
      }, 
      clientSubscriptionId: "randomId"}
  ) {
    clientMutationId
  }
}

You should see new entries in the llm.log

Screen_Recording_2024-04-04_at_6.26.23_PM

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