History of router 3 changes

In crates/oxy-server/src/lib.rs, lines 182–194 on 9ac1fbe211b4041a3fff0b11cb5d7fe2f7caf5ec085ecc034693154332225126. 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 182,194:crates/oxy-server/src/lib.rs.