fix(cli): only show update notice when PyPI version is actually newer

[berettavexee]

Problem

The update check compares versions with !=:

if latest_version != __version__:
    console.print("A new version is available!")

This means the notice also fires when the installed version is newer than PyPI — e.g. on a dev install, a pre-release, or a fork. Users on dev installs see the "please upgrade" message on every run even though they're already ahead of the release.

Fix

Compare version tuples numerically so the notice only appears when PyPI actually has a newer release:

def _ver(v):
    try:
        return tuple(map(int, v.split(".")))
    except (ValueError, AttributeError):
        return (0, 0, 0)
if _ver(latest_version) > _ver(__version__):

The helper also handles malformed version strings gracefully (returns (0, 0, 0), suppressing the notice).

Test plan

• Installed version == PyPI version → no notice
• Installed version < PyPI version → notice shown
• Installed version > PyPI version (dev/fork) → no notice
• Malformed version string from PyPI → no notice, no exception

🤖 Generated with Claude Code