Queue failed attestations due to EXECUTION_PAYLOAD_NOT_SEEN

**_{} Retry API aggregates after payload envelope arrives**

This new IGNORE branch introduces the same failure mode for `publishAggregateAndProofsV2`: index-1 aggregates now error out when the block is present but payload envelope import has not completed, yet the API retry path only handles unknown block roots and does not retry on `EXECUTION_PAYLOAD_NOT_SEEN`. As a result, valid aggregates from external/fallback beacon nodes can be rejected instead of being processed after envelope retrieval.

Useful? React with 👍 / 👎.

_Originally posted by @chatgpt-codex-connector[bot] in https://github.com/ChainSafe/lodestar/pull/9213#discussion_r3076706174_