DISTRICT_MIN_WL_M's doc in window_derivation_golden.rs still carried the 'NOT 2×DISTRICT_M by coincidence alone' framing the I1 fix inverted everywhere else — now states the rung authors the floor and the terrain-octave coincidence is guard-pinned, matching the rewritten MIN_WL_BANDS_M and coast_invention docs. Tickets: T-1162 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>