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feat(kafka): Add iterator for message headers - #577
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bmckerry
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Oct 1, 2026
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Taskbroker’s raw-message deserializer copies Kafka headers into task activation headers, including metadata such as trace and request IDs. Using Arroyo’s
KafkaPayloadrequires access to all headers;Headers::get()only supports lookup by a known key.Adds
Headers::iter()to support this, preserving Kafka order, duplicate keys, and headers without values.Refs STREAM-1846