Each test runs xidle-inhibit on a private dbus-daemon with fake lockers on PATH,
covering lock blocking, cookie handling, restoring after restarts and cleanup.
Annotate all functions and check them with mypy --strict (needs
python-pygobject-stubs). pyproject.toml holds only tool config since
the PKGBUILD installs the script directly.
Own org.freedesktop.ScreenSaver on the session bus and translate
Inhibit/UnInhibit into xautolock -disable/-enable. Cookies are tracked
per sender and released when the sender leaves the bus. Inhibits with
an ignored reason ("Playing audio" by default) are logged but don't
block locking. xautolock is re-enabled on exit.
Add systemd user unit, PKGBUILD and LICENSE.