feat: in_transaction() runtime predicate on Backend protocol (Gap 4) - #102

Merged

discreteds merged 5 commits into

feature/ibisbackend-in-transaction

Jul 17, 2026

Commits on Jul 17, 2026

feat(ibis): is_active() lock-guarded read helper for _ACTIVE registry
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1576535
feat(ibis): IbisBackend.in_transaction() runtime unit-of-work predicate
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9e17383
feat(iceberg): IcebergBackend.in_transaction() returns False
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4ba2ead
feat(core): add in_transaction() to Backend protocol (runtime tx predicate)
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4b63459
fix(ci): align test_transaction_live to the postgres_backend fixture

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claude
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1d7859c