KIP-258 — Allow to Store Record Timestamps in RocksDB

Accepted Kafka 2.3 Streams

Stores record timestamps alongside key-value data in RocksDB state stores for Kafka Streams KTables, enabling time-aware operations and stream-time punctuators on materialized state. Previously KTables had no access to record timestamps, blocking correct event-time semantics and DSL features that depend on per-record time.

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