Method threads

src/models/heartmula/mula.cpp:1869–1871

}

int HeartMuLaWeightsRuntime::threads() const noexcept {
    return threads_;
}

size_t HeartMuLaWeightsRuntime::backbone_prefill_graph_arena_bytes() const noexcept {
    return backbone_prefill_graph_arena_bytes_;