KIP-1152 — Add transactional ID pattern filter to ListTransactions API

Accepted Kafka 4.1 TransactionsAdmin

Adds a `TransactionalIdPattern` (RE2J regex) filter to the `ListTransactions` admin API so clients can filter transactions by transactional ID pattern server-side alongside the existing state, producer ID, and duration filters. On large clusters with millions of transactional IDs, fetching all transactions and filtering client-side wastes network bandwidth and broker CPU.

Protocol Impact

ListTransactions v2

Details