chore: Enable mainnet

[dknopik]

Proposed Changes

• Allow passing mainnet to network.
• Remove mainnet safeguard from client startup function.
• Adjust comments and docs.
• Make mainnet the default network.

[Copilot]

Pull Request Overview

This PR enables mainnet support in the Anchor validator by removing testnet restrictions and making mainnet the default network configuration.

• Removed mainnet safeguard from client startup that prevented mainnet usage
• Updated default network from "hoodi" to "mainnet"
• Added mainnet contract address and updated documentation to reflect mainnet support

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
docs/docs/pages/running_an_operator.mdx	Updated documentation to include mainnet as a supported network option
docs/docs/pages/cli.mdx	Changed default network parameter from "hoodi" to "mainnet" in CLI documentation
anchor/keysplit/README.md	Updated examples and documentation to use mainnet instead of hoodi, removed mainnet restriction note
anchor/eth/README.md	Added mainnet contract address and updated description to include mainnet support
anchor/common/global_config/src/lib.rs	Changed default hardcoded network from "hoodi" to "mainnet" and added mainnet to allowed values
anchor/client/src/lib.rs	Removed mainnet genesis fork version check that blocked mainnet usage

Comments suppressed due to low confidence (1)

anchor/client/src/lib.rs:1

• The constant MAINNET_GENESIS_FORK_VERSION is removed but not used elsewhere in the visible diff. Since this was used for the mainnet check that's being removed, this cleanup is appropriate, but ensure no other references to this constant exist in the codebase.

pub mod cli;

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[dknopik]

LFG! 🥳