nx_store_janitor_gate.nx

nx_store_janitor_gate.nx -- THE JANITOR GATE: the seg-store's most destructive standing beat (it moves files nobody can reach, on every plane, every beat) had NO gate. Born 2026-08-18 from two live incidents in two days: nx_store_janitor swept a segment being BORN (files land before the manifest line, id above the manifest max), then its race repair restored only the .docs -- comparewatch-seg-1786828803 (08-16/17) and debt-seg-1787064612 (08-18) both read as "lossy load"/SHORTFALL to every reader, and one seat's debt row was overwritten during the hand repair. Subject: ./nx_store_janitor.elf (argv[1] overrides the path so a STAGED build can be bitten before promote). Fixture assembled at RUNTIME under /tmp/janitor_gate/ (a detector that scans source would find its own fixture) and rebuilt from scratch on every run (idempotent by construction). Teeth, each printed with its values: superseded segment moved (the sweep still sweeps -- the anti-vacuity tooth), birth in flight left alone, live segment untouched, heal restores EVERY sidecar, heal never clobbers a live file, empty manifest REFUSES and touches nothing. RED against the pre-08-18 binary by construction (it moves the birth and knows no heal verb); GREEN only when both fixes are in the forked binary. license_tier: ORIGINAL No hw writes (Rule 26).