PoC builder mode selecting TXs from an auction running on pod

[poszu]

This pull request introduces support for a new Pod payload builder mode in the op-rbuilder crate. The changes include adding configurations, arguments, and implementation for the Pod builder, which integrates with an auction system to select transactions based on bids. Below is a summary of the most important changes grouped by theme.

Builder Mode Enhancements:

• Added a new Pod builder mode to the BuilderMode enum, enabling block building based on transaction bids from an auction system. (crates/op-rbuilder/src/builders/mod.rs, crates/op-rbuilder/src/builders/mod.rsR39-R42)
• Implemented the PodBuilder struct with a block-building strategy that uses auction data to select transactions. (crates/op-rbuilder/src/builders/pod/mod.rs, crates/op-rbuilder/src/builders/pod/mod.rsR1-R37)

Configuration and Argument Updates:

• Introduced the PodArgs struct to define arguments for enabling the Pod mode, specifying RPC URL, and contract address. (crates/op-rbuilder/src/args/op.rs, crates/op-rbuilder/src/args/op.rsR155-R174)
• Added a Config struct for the PodBuilder, mapping PodArgs to configuration values. (crates/op-rbuilder/src/builders/pod/config.rs, crates/op-rbuilder/src/builders/pod/config.rsR1-R20)

Integration with Auction System:

• Developed the PodClient struct to interact with the auction system, fetch bids, and sort transactions by bid amount. (crates/op-rbuilder/src/builders/pod/pod_client.rs, crates/op-rbuilder/src/builders/pod/pod_client.rsR1-R95)

Launcher Updates:

• Updated the launch function to include support for launching the Pod builder mode. (crates/op-rbuilder/src/launcher.rs, crates/op-rbuilder/src/launcher.rsR61-R65)

Dependency Additions:

• Added new dependencies, including pod-sdk, pod-auction, and itertools, to support the Pod builder functionality. (crates/op-rbuilder/Cargo.toml, crates/op-rbuilder/Cargo.tomlR136-R139)

[Copilot]

Pull Request Overview

This PR introduces a new Pod payload builder mode in the op-rbuilder crate that selects transactions based on auction bids from a Pod network. Key changes include:

• Adding a new BuilderMode::Pod in the launcher and builders modules
• Implementing the PodBuilder, its configuration (PodArgs and Config), and PodClient to interact with auction bids
• Integrating the Pod mode into the CLI and dependency updates in Cargo.toml

Reviewed Changes

Copilot reviewed 9 out of 10 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
crates/op-rbuilder/src/launcher.rs	Added Pod mode support in the launch function
crates/op-rbuilder/src/builders/pod/pod_client.rs	Introduced PodClient for fetching and sorting auction bids
crates/op-rbuilder/src/builders/pod/payload.rs	Implemented the PodPayloadBuilder and integration with async logic
crates/op-rbuilder/src/builders/pod/mod.rs	Added PodBuilder entry point and service builder creation
crates/op-rbuilder/src/builders/pod/config.rs	Defined configuration mapping for the Pod builder
crates/op-rbuilder/src/args/op.rs	Introduced PodArgs for Pod mode configuration
crates/op-rbuilder/src/args/mod.rs	Added flag to select Pod mode
crates/op-rbuilder/Cargo.toml	Added dependencies for pod-sdk, pod-auction, and itertools