fix: self-anchoring proof storage and validation fixes

[m0ar]

WIP

Re-implement RPC proof discovery

#755 prematurely removed some fallback logic required for nodes to self-heal after failing to persist self-anchoring inclusion proofs. The relevant changes in discover_chain_proof are reverted here.

Fallback validation to account for incorrect codec slice in anchor root

Single event anchor batch roots didn't initially get a dag-pb tree node wrapper, instead the dag-jose hash was written to the chain. However, it assumed it should slice off the first 4 bytes from the cid to strip it down to a hash, but dag-jose has a longer codec sequence. This resulted in the root hash keeping the 0x20 (digest length 32) in the front, causing the last digest byte to be dropped.

The fix is falling back to a partial 31-byte comparison for gnosis (clay) anchors, for anchors in a specific time window, and only if the prefix is 0x20.

Self-anchoring proof persistence

The self-anchoring process didn't store the inclusion proofs in the DB, causing pipeline errors for self-anchored events. This is now implemented so the node immediately can validate the events that it created and anchored.

Approach:

1. anchor-service/src/transaction_manager.rs: Added ChainInclusionData struct and chain_inclusion field to RootTimeEvent
2. anchor-service/src/lib.rs: Exported ChainInclusionData
3. anchor-service/src/anchor.rs: Added chain_inclusion field to TimeEventBatch and TimeEventInsertable, updated conversion methods
4. anchor-service/src/anchor_batch.rs: Flows chain_inclusion from RootTimeEvent to TimeEventBatch
5. anchor-evm/src/evm_transaction_manager.rs:
6. Added AnchorResult struct (moved outside impl block)
7. Modified submit_and_wait to return block hash, timestamp, and tx_input
8. Creates ChainInclusionData in anchor_root with all needed fields
9. Fixed get_block_by_number API call (changed BlockTransactionsKind::Hashes to false)
10. anchor-service/src/cas_mock.rs and anchor-remote/src/cas_remote.rs: Added chain_inclusion: None to RootTimeEvent
11. event-svc/src/store/sql/entities/chain_proof.rs: Added From impl for ChainProof
12. event-svc/src/event/store.rs: Updated ceramic_anchor_service::Store::insert_many to extract and persist chain inclusion proofs
13. Test files: Updated all expectation files to include chain_inclusion: None

[stbrody]

@m0ar is this PR still relevant or is it superseded by the other ones you've opened?

[m0ar]

@m0ar is this PR still relevant or is it superseded by the other ones you've opened?

This has been tidied up and split into 3 others PRs 👌 Can close.