Git-driven app graph histories and visualization

[willtsai]

Overview of roadmap item

We will make Radius further differentiated by enhancing the application graph and integrating it closely with GitHub repositories and pull requests. We want the application graph to feel like a natural extension of GitHub transforming the GitHub experience from working with repositories to working with applications. This enhanced application graph will include a full model of the application including its code repositories, abstract resources, application logical environments, recipe sources, and logging/telemetry locations and be stored in the repo. We plan to work with GitHub UX designers to build a GitHub-native visualization of the application. Additionally, leveraging Git commits, Radius will be able to provide rich visualization of the application as well as a time series-like visualization of what changed, who changed it, and why all the way from code to cloud.

Additional context