History of assistant 2 changes

In crates/oh/src/main.rs, lines 2169–2240 on v0.9.22. Every change that wrote or deleted one of these lines, or deleted a line from between them. Exact, because each line keeps its identity across edits; edits elsewhere in the file are not here. Also: oxy log -L 2169,2240:crates/oh/src/main.rs.