[rpc] Prestate tracing support for debug_trace{Transaction,BlockByNumber,BlockByHash}.

[dhil]

This patch continues the work started in #2275.

[Copilot]

Pull Request Overview

This PR adds prestate tracing support to the Monad RPC debug methods. The implementation enables transaction replay for prestate tracers in debug_traceTransaction, debug_traceBlockByNumber, and debug_traceBlockByHash methods.

• Adds a new debug_replay module that handles transaction replay for prestate tracing
• Modifies existing debug trace handlers to detect when replay is needed and route to replay functionality
• Updates parameter structs to be Copy and exposes fields as public to support the new replay system

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
monad-triedb-utils/src/triedb_env.rs	Adds helper method to extract sequence number and block ID from BlockKey
monad-rpc/src/handlers/mod.rs	Updates debug trace handlers to support replay routing and adds rate limiting
monad-rpc/src/handlers/eth/call.rs	Makes prepare_eth_call function public for reuse in replay functionality
monad-rpc/src/handlers/debug_replay.rs	New module implementing transaction replay logic for prestate tracing
monad-rpc/src/handlers/debug.rs	Updates parameter structs to be Copy and exposes fields as public
monad-rpc/src/eth_json_types.rs	Makes BlockTags Copy to support the new parameter requirements

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[philipglazman]

Mentioned offline but its worth considering if archiver needs prestate traces.

[philipglazman]

Will eth_call consider the case that state changes in tx0 in the block will affect tx1?

[dhil]

Good question! Probably not, as eth_call doesn't affect the state, I believe. This, I suppose this suggests we need a "batched" variant of eth_call. I will chat with execution about this. Thanks!