apollo_protobuf: add concatenated_counts to fin

[asmaastarkware]

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[reviewable-StarkWare]

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• apollo_protobuf: add concatenated_counts to fin #11752 👈 (View in Graphite)
• apollo_protobuf: add version_constant_commitment to ConsensusBlockInfo #11751
• apollo_protobuf: add parent_proposal_commitment field to ConsensusBlockInfo #11716
• apollo_protobuf: add starknet_version field to ConsensusBlockInfo #11711
• apollo_consensus: use PreviousBlockInfo instead of full ConsensusBlockInfo #11710
• apollo_protobuf: merge ProposalInit into ConsensusBlockInfo #11577
• apollo_protobuf: move executed_transaction_count into ProposalFin #11492
• main-v0.14.1-committer

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• Started at 2026-01-15T14:14:27Z

[matanl-starkware]

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Reviewable status: 0 of 18 files reviewed, 1 unresolved discussion (waiting on @asmaastarkware and @dafnamatsry).

---

crates/apollo_protobuf/src/proto/p2p/proto/consensus/consensus.proto line 73 at r1 (raw file):

    uint64 executed_transaction_count = 2;
    // Concatenated counts.
    Felt252 concatenated_counts = 3;

We agreed to add this field (and its followers) as an optional message in the Fin.
Meaning that all the stuff required to calculate the proposal commitment may or may not be sent, basically telling "we might not send this at all, and you should not rely on it".

Code quote (i):

Felt252 concatenated_counts = 3;

Code snippet (ii):

message ProposalCommitmentComponents {
    Felt252 concatenated_counts = 1;
    All the other fields of the message...
}

message ProposalFin {
    ...
       
    optional ProposalCommitmentComponents commitment_components = 3;
}