888be16090
ADR-0052 vestigial-source unwind; H2 contextual hint (F1 keybinding + `hint` command) fully implemented Phases A–D, closing A1 + H2. 4 issues filed (#35–#38, incl. 3 hint/help deferrals). CI branch merged into main mid-session (D1 release work now on main). 2499 pass / 1 ignored, clippy clean.