Request: make compatible with `uv tool` by adding a `pypyoject.toml`

[jamesbraza]

As of https://github.com/phuryn/claude-usage/tree/e160eee8509cfde23380daf7676c99c77256284e on 6/21/2026, it's not easy to install this as a uv tool. It would be nice to add a basic pyproject.toml with entries like:

[project.scripts]
claude-usage = "cli:main"

[tool.setuptools]
py-modules = ["cli", "scanner", "dashboard"]

This way users can:

1. Run uv tool install git+https://github.com/phuryn/claude-usage to install as a tool
   • Or Git clone this repo and run uv tool install --editable .
2. Now have a simple command such as claude-usage dashboard