History of agent 2 changes

In crates/oh/src/main.rs, lines 730–815 on 2c47eecfeab69e364c03b79523eaeb3e72145307b46e8b0b36feaf30ae2713d5. 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 730,815:crates/oh/src/main.rs.