App-server functionality coverage at 15% of official docs

Thread: https://github.com/MatthewFrench/farfield/pull/1#discussion_r2862837626

<img width="775" height="619" alt="Image" src="https://github.com/user-attachments/assets/1ebe6f69-c1fb-49e7-a59f-2439a4ce2941" />