Injected Env Vars UI

[BSick7]

Summary

This feature shows the user which environment variables are injected through attached capabilities.

Currently, many capabilities inject environment variables automatically. For example, the postgres access capability injects POSTGRES_URL, POSTGRES_DB, POSTGRES_USER, and POSTGRES_PASSWORD It's difficult for a user to know what they are.

How will it work?

When viewing and updating configuration, the Nullstone UI will show which environment variables are injected and by which capability.