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Run Coulomb and dispersion reciprocal PME work on separate HIP queues for
LJPME when PME streams are enabled.  Use separate grids, sorters, events, and
energy buffers so the two reciprocal branches can overlap safely.

Keep the behavior HIP-only based on RTX4090 CUDA profiling, where the same
split increased PME spread/list contention and regressed apoa1ljpme.