nx_wire_harness_gate.nx

nx_wire_harness_gate.nx -- certifies the shared wiring scaffold. Each tooth guards a property the three title gates depend on; mutation target = the causal menu (wh_menu_pick2 must return the policy item, and the caller acting on a different id must be observable). T1 fbck order-sensitive (a swapped pixel changes it -- not a plain sum) T2 fbck deterministic (same frame -> same ck) T3 chain fold accumulates (order matters) T4 menu returns the policy item (id a) and is modal-closed after T5 menu is CAUSAL: a caller that acts on the returned id vs a fixed id diverges (mutation proof built into the gate so the property cannot rot) T6 experiential passes a real 2D frame and REFUSES a void frame T7 ink counts non-bg pixels, 0 on a cleared frame T8 anti-vacuity: the frames compared in T1/T2 carried real ink license_tier: ORIGINAL expect_exit: 0