v0.1.4 — Python 3.9+ (fixes pip3 on stock macOS python)

Fixed

• pip3 install contextrot now works on Python 3.9 and 3.10 — including the stock python3 (3.9.6) on macOS. Runtime pipe-unions replaced with Optional[...]; datetime.UTC → timezone.utc; future-annotations import removed from the CLI module (typer on 3.9 cannot evaluate string annotations and silently drops option metadata).
• CI now tests Python 3.9–3.13 on Linux, macOS, and Windows.

Changed

• Downloads badge switched to pepy.tech; pip install path documented in README.