Support appending arguments without requiring `--`

[AlexSkrypnyk]

Feature Request: Support appending arguments without requiring --

What we want to achieve

Currently, Ahoy requires the use of -- to append arguments to commands.
We would like to introduce support for appending arguments without relying on --.
This would make command execution more natural and consistent with other tools (e.g., Lando, DDEV custom commands), and would lower the friction for both human users and AI-assisted workflows.

Why this matters

1. Improved user experience

   • Users should not have to remember or type -- every single time they want to pass additional arguments.
   • This reduces typing overhead and avoids a pattern that often feels unintuitive or “extra” compared to similar tools.

2. Better AI agent compatibility

   • AI agents and automation tools (e.g., GitHub Copilot, ChatGPT, etc.) do not naturally add -- when constructing command invocations.
   • Today, they need to be explicitly instructed to use -- for each Ahoy command, which makes automation brittle and error-prone.
   • Removing this requirement ensures smoother interoperability with AI-driven workflows.

Example

Instead of

ahoy test -- unit --filter MyTest

a user would type

ahoy test unit --filter MyTest

This change is additive — commands with -- will continue to work, so backward compatibility should not be affected.

Related to #73

[ocean]

I think this might be something that is automatically implemented by the underlying urfave/cli CLI tooling library we use, but I'll have a look.

Also, would this perhaps clash with the long help that has just been added (though not released yet as I'm finessing the formatting), e.g. ahoy test --help gives you the long description for the "test" command, but with this change we would then always pass the --help to the command itself rather than to ahoy 🤔