History of dispatch 5 changes

In crates/oxy-server/src/lib.rs, lines 389–400 on agents-in-readme. 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 389,400:crates/oxy-server/src/lib.rs.