nx_dupname_worklist.nx

nx_dupname_worklist.nx -- turns the 22 shadow collisions into a PRIORITIZED, actionable rename worklist: for EVERY collision, how many files reference that organ name (fewer = easier/safer to rename). Composes nx_janitor_dupname (the collision set) + a single sovereign tree walk (the caller count) -- ONE walk that checks every .nx against ALL collision names at once (not N walks), reusing the nx_organ_callers reference test. READ-ONLY (never-brick). The caller count INCLUDES the organ's own 2 copies, so external callers ~= count - 2; the RANKING (which collisions are cheapest to resolve) is what matters. license_tier: ORIGINAL