fix: Version info on root command, consistent output style of help

[dknopik]

Issue Addressed

• feat: --version on root #631

Originally, we had only the main command, and no sub commands. When subcommands were introduced, certain attributes stayed on the node subcommand, even though they should have moved.

Proposed Changes

Move the attributes to the main command, causing correct colour output on all subcommands and allowing --version and -V to work on all commands.

Also, remove incorrect allocator info from version output.

[Copilot]

Pull Request Overview

This PR moves command-line interface configuration from the node subcommand to the root anchor command to fix version info display and ensure consistent styling across all subcommands. The changes also remove incorrect allocator information from version output.

• Moved CLI attributes (version, styling, metadata) from node subcommand to root command
• Relocated version formatting and styling functions from client module to main module
• Removed allocator information from version output and updated dependency structure

Reviewed Changes

Copilot reviewed 4 out of 6 changed files in this pull request and generated 2 comments.

File	Description
anchor/src/main.rs	Added CLI attributes, version formatting, and styling functions to root command
anchor/client/src/cli.rs	Removed CLI metadata and version info, simplified to basic node subcommand
anchor/client/Cargo.toml	Removed ethereum_hashing dependency no longer needed in client module
anchor/Cargo.toml	Added ethereum_hashing and version dependencies for root module

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[jking-aus]

lgtm!

[mergify]

This pull request has merge conflicts. Could you please resolve them @dknopik? 🙏

[mergify]

This pull request has merge conflicts. Could you please resolve them @dknopik? 🙏