feat(messaging): @message_listener retry + dead-letter routing (v26.06.47)#74
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… v26.06.47 @message_listener gained retries/retry_delay/dead_letter_topic (Spring Kafka @RetryableTopic / DefaultErrorHandler parity), applied adapter-agnostically via wrap_listener at wiring time: - retries: re-invoke handler N times (linear retry_delay backoff). - dead_letter_topic: still-failing message re-published there with x-original-topic/x-exception headers instead of propagating. No options -> handler wired unchanged (zero overhead). Tests: tests/messaging/test_listener_retry_dlq.py (4). Gates: mypy --strict (621), ruff + format, full suite 3845 passed.
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@message_listenergained resilience options (Spring Kafka@RetryableTopic/DefaultErrorHandlerparity), applied adapter-agnostically (Kafka, RabbitMQ, in-memory) viawrap_listenerat wiring time:retries(re-invoke N times, linearretry_delaybackoff) anddead_letter_topic(still-failing message re-published there withx-original-topic/x-exceptionheaders instead of propagating). No options → handler wired unchanged (zero overhead). Tests (4): unchanged-without-config, retries-then-succeeds, exhausted→DLQ (headers asserted), exhausted-no-DLQ→reraises. Gates: mypy --strict (621), ruff+format, full suite 3845.