0.1.1

0.1.1 — auto-update verification build

No functional changes from 0.1.0. The application code is byte-identical;
only the version string differs, in the four files that carry it.

This release exists to exercise the update path end to end on a public
repository: an installed 0.1.0 client resolving /releases/latest, fetching
latest-mac.yml / latest.yml, downloading the artifact, checking it against the
manifest sha512, and applying it.

Holding the code constant is the point — it makes the version the only
variable, so any failure is attributable to the update mechanism rather than
to a change in the app.