nx_char_ai_gate.nx

nx_char_ai_gate.nx -- proves G-R2 char-AI (behavior tree + FSM). NPC BT (priority selector): SEL[ SEQ[COND health_low, ACT flee], SEQ[COND enemy_visible, ACT attack], ACT patrol ] blackboard bits: 0=health_low, 1=enemy_visible. actions: flee=1, attack=2, patrol=3. FSM: IDLE--see-->ATTACK--health_low-->FLEE--healed-->IDLE (no other transitions). GREEN only if every decision + transition is correct, incl. priority and neg-controls. license_tier: ORIGINAL expect_exit: 0 2026-08-28 D001 MIGRATION: the hand-rolled pass/total counter and the sys_exit tail are replaced by gv_ctr/gv_check/gv_verdict, so /api/promote will accept it and /api/gate_run can READ the verdict from the exit code instead of a printed string nothing parses. Every tooth now PRINTS THE VALUE IT JUDGED -- the incumbent printed a value only on failure, so a passing run said nothing about what it saw.