feat(interop): L2ToL2CDM SentMessage event, Relay Entrypoint, Better Event Topics

[hamdiallam]

1. Improve DevX by using an explicit SentMessage event.
2. Leverage contracts-bedrock: improve CrossL2Inbox devex #11322 to provide a public relay entrypoint to consume that event when relaying instead of CrossL2Inbox directly executing relayMessage via the emitted LOG0 event

Include indexed source,nonce as topics in the sent/relay events for easy on-chain indexing & searching

Aside

• Rename Hashing#hashL2toL2CrossDomainMessengerRelayMessage to Hashing#hashL2toL2CrossDomainMessage

[hamdiallam]

• feat(interop): L2ToL2CDM SentMessage event, Relay Entrypoint, Better Event Topics #11592 👈
• develop

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[tynes]

Wondering the status on this, if its something that having merged before the first devnet would be ideal

[hamdiallam]

Wondering the status on this, if its something that having merged before the first devnet would be ideal

@skeletor-spaceman said they'd take over the PR+spec changes for these changes.

Do y'all want us to do this?

[skeletor-spaceman]

@tynes we have this as a mid-priority on our tasks. it will get done before devnet :)
@hamdiallam that'd be awesome, we don't want to give you guys more work to do tho, but if you think it's ok we'll happily review the changes on the other 2 repos as well :) -- just let me know so I can un-assign that task internally

[hamdiallam]

@tynes we have this as a mid-priority on our tasks. it will get done before devnet :)

@hamdiallam that'd be awesome, we don't want to give you guys more work to do tho, but if you think it's ok we'll happily review the changes on the other 2 repos as well :) -- just let me know so I can un-assign that task internally

Was OOO this week but will sync with the team next Monday and let you know!

[semgrep-app]

Semgrep found 2 err-todo findings:

• op-supervisor/supervisor/backend/db/safety_checkers.go
  • L142 - Triage
  • L145 - Triage

TODO in error handling code

_{Ignore this finding from err-todo.}

[skeletor-spaceman]

requested some minor changes and added an interesting question :)

[0xDiscotech]

Looking good so far! I focused on the tests, left few small comments and questions, and also a testFuzz_relayMessage_eventPayloadNotSent_reverts test is missing on the CDM unit tests.