feat(redrive): DLQ redrive tooling — safe replay (ADR-0026) (#3) #36

Job	Run time
Broker integration (Redis · RabbitMQ · SQS)	1m 19s
Static analysis (ruff + mypy)	46s
Conformance suite in sync	6s
Python 3.9	27s
Python 3.13	25s
Python 3.11	17s
Python 3.10	18s
Python 3.12	20s
CI green	3s
	4m 1s

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