History of Assistant::scope 1 change

In crates/hub/src/assistants.rs, lines 61–67 on v0.5.1. 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 61,67:crates/hub/src/assistants.rs.