Document 1.1.1 reverse-path fidelity (grand staff, per-part divisions) Retire the 2-staff-per-part deferral (multi-staff grand staffs now round-trip with per-staff clefs / bass clef), and record the per-part <divisions>, <movement-title> fallback, and composer C: projection added in 1.1.1.
docs: publish croma wiki (18 pages)