openai/gpt-chat-latest → A (20:1)

Side A makes project-affecting maintenance changes: it restores a missing `#[test]` so a UI action test runs, adds a targeted `#![allow(dead_code)]` for shared integration helpers, introduces a type alias to simplify a complex return type, and applies multiple Clippy-driven correctness and idiomatic fixes across server and types. Side B only adds planning documents and personal notes (`notes.tdsl` and `plan2.md`) without changing executable code or tests, so it provides little lasting implementation value.