openai/gpt-chat-latest → B (8:1)

Side B makes a focused behavioral improvement: it changes sibling navigation so each unranked sibling becomes its own navigation group instead of lumping all unranked items together, and adds a regression test verifying the new grouping. Side A is an enormous 'init seed' that mixes many unrelated additions and even includes accidental terminal transcript text in source files (e.g. `forms.rs` and `ranking.rs`), making it noisy and difficult to judge as a coherent, lasting contribution.