fix(simulation): capture CREATE revert reasons

[crystalt]

Mirrors the existing call_end revert capture in create_end, capturing revert data from failed contract deployments before an outer call can mask it.

Test: cargo test -p world-chain-rpc --test inspector_create_revert

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Note

Low Risk
Small, symmetric change to simulation inspector revert capture with an in-memory regression test; no auth, persistence, or consensus impact.

Overview
Simulation now surfaces constructor revert data when a CREATE/CREATE2 fails, not only when a nested CALL reverts.

SimulationInspector::create_end records the first InstructionResult::Revert output into deepest_revert_payload, matching the existing call_end behavior so revert_reason on simulate_unsignedUserOp stays the innermost payload instead of being replaced by an outer frame with empty or wrapper revert data (e.g. EntryPoint FailedOp).

Docs on deepest_revert_payload now note both call_end and create_end. A new in-memory regression test (inspector_create_revert) uses bytecode that CREATE-reverts with 0xdeadbeef then outer-reverts with no data, asserting the inspector still returns 0xdeadbeef and no committed creations.

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[Copilot]

Pull request overview

Updates the RPC simulation inspector so constructor reverts from failed contract deployments (CREATE/CREATE2) are captured as the deepest revert payload, preventing outer wrapper reverts from masking the root cause during simulation. Adds a dedicated in-memory EVM regression test to validate revert reason capture and ensure failed creates do not get recorded as contract creations.

Changes:

• Capture InstructionResult::Revert payloads in SimulationInspector::create_end, mirroring existing call_end behavior.
• Update deepest_revert_payload documentation to include both call_end and create_end.
• Add inspector_create_revert regression test covering masked constructor revert payloads.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
crates/rpc/src/simulate.rs	Extends deepest-revert capture to CREATE/CREATE2 end-hook paths and updates associated docs.
crates/rpc/tests/inspector_create_revert.rs	Adds a regression test ensuring constructor revert payloads are preserved even when an outer frame reverts with empty output.

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