Partial data column containers for Gloas - #17348
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Bundles the in-progress Gloas partial-column feature with the broadcaster incoming-message changes (group-id parse, fork-aware decode, Gloas drop) for kurtosis devnet testing.
Adds ColumnCallbacks.ValidatePartialColumnGroupID so the broadcaster downscores peers whose Gloas group id slot does not match the slot of the seen block at the group's beacon block root ([REJECT]); unseen blocks are ignored ([IGNORE]).
Conflicts resolved: - execution/testing/mock_engine_client.go: union of struct fields (our PartialColumnsEnabledForSlotResult + develop's FetchedAttributes). - rpc/eth/beacon/handlers_gloas.go: took develop's delegation refactor (#16960/#16943); our inline REST blob->column->broadcast logic is superseded by the v1alpha1 publish path. - rpc/prysm/v1alpha1/validator/proposer_payload_envelope.go: kept develop's stateless+stateful sidecar resolution, preserved our partial columns in the stateful (cache) path, and fixed storeExecutionPayloadEnvelope returns for develop's new (*ExecutionPayloadEnvelope, error) signature. Other merge resolutions: - sync: adopted develop's Gloas data-column reconstruction (#17053) by removing our now-obsolete IsGloas reconstruction guards in processDataColumnSidecarsFromReconstruction and verifiedRODataColumnSubscriber. - spectest engineMock: implemented PartialColumnsEnabledForSlot to satisfy the EngineCaller interface (our addition) against develop's new mock.
…com:prysmaticlabs/prysm into feat/gloas-partial-column-container-changes
…ner-changes' into feat/gloas-partial-column-container-changes
Co-authored-by: Manu NALEPA <nalepae@gmail.com>
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What
Stacks the Gloas partial data column container work on top of #17310 (
spectest-alpha-12-compliance).