t-smo-longctx-lrfam — throughput fork of king's longctx-lrfam-v5

Same long-range family reweight as v5 (integrated / regime / AR2 / GP / multi-seasonal up; chaotic / intermittent / pulse down), plus t-smo generation speedups: numba-jitted AR/SETAR/chaotic/hold loops, _CHUNK=512, fixed-length fast path, longer seasonal periods. Numpy + numba, deterministic.