nx_game_breed_gate.nx

nx_game_breed_gate.nx -- proves the breeders mechanic end-to-end with the lane's discipline. The flagship claims, each with its refutation path designed in: dominance is EARNED (a scrape-by win must NOT dominate -- T2's found-seed control) the game is LOSABLE (a weak player genuinely loses -- T1b) the one you dominated is the one you OWN (byte-equal genes across capture -- T3) inheritance is REAL (every child gene provably near a parent slot -- T4; the mutation target) breeding never mass-produces (uniqueness at roster scale -- T5) persistence is transparent (save -> load -> SAME child from the same pair+seed -- T6) beats are causal + the whole thing replays bit-exact (T7) MUTATION TARGET (documented): brd_gene -> pure rng ignoring parents => T4 RED, T5/T7 stay GREEN. license_tier: ORIGINAL