[WIP][SPARK-56248][PYTHON][SS] Optimize python TWS stateful processor serialization calls#55039

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jiateoh wants to merge 3 commits intoapache:masterfrom

jiateoh:tws_python_serialization_improvements

Commits on Mar 27, 2026

Optimize python stateful processor serialization: skip Row construction, cache serializer, hoist normalize helpers.
jiateoh
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Introduce _normalize_tuple_simple fastpath to reduce number of isinstance checks for numpy types
jiateoh
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comment update to reflect post-optimization state
jiateoh
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