MoveBit v0.0.4

v0.0.4 — the presence-polish slice

The application icon becomes Mubi on every platform (one source: the
canonical tokens.json art, rendered to icns/ico/PNG by
scripts/gen-app-icons.sh). The macOS menu bar presents states — droplet
at rest, Mubi's silhouette while a reminder is on screen, a slim moon
for Focus/paused. Linux gains its StatusNotifierItem tray with full
menu parity (rivet's TrayIcon; header buttons stay the honest fallback
without a watcher). The release contract grows Flatpak bundles for
x64 and arm64, validated end to end by the new flatpak-smoke leg.
Also: four HTML-escaped ampersands in native menu strings.