v0.1.28 - Abakos Provider: reliable self-hosted auto-updater (signed, Win+Linux)

Signed Windows + Linux build. This release fixes the auto-updater permanently.

The in-app updater now checks a self-hosted, reliably-served endpoint (abakos.ai/latest.json) instead of GitHub's flaky "latest" redirect, which kept serving stale versions and made "Check for updates" say you were up to date when you weren't.

One-time step: install this build manually (download below). After that, every future update installs automatically and reliably.

Includes everything from v0.1.27: unified provider dashboard (wallet vs provider account, leases, earnings), no em-dashes, toggle switches.