The new token_store module (#78) depends on `sync-secret-service` via
`dbus-secret-service`, which in turn links to libdbus-1 at build time
through the `dbus` crate. Add `libdbus-1-dev` to:
- `check.yml` rust job (alongside the existing webkit/appindicator
system deps), so every PR run compiles the keyring backend.
- `release.yml` Linux deps step, so tagged builds link correctly.
Runtime requires `libdbus-1-3`, which is present on every desktop
Linux distro by default, so `.deb` / `.rpm` depends stay unchanged.
Also add a non-blocking `cargo audit` step to check.yml to surface
advisories across the transitive dep graph (zbus, dbus-secret-service,
etc.) without failing unrelated PRs.
Drop `appimage` from `bundle.targets` in tauri.conf.json: the release
workflow explicitly builds `--bundles deb,rpm` so AppImage was never
shipped, and its presence in the config risks a silent fallback to
plaintext token storage for anyone running `tauri build` locally
without libsecret/libdbus bundled into the AppImage. No behaviour
change for CI; follow-up to re-enable AppImage properly would need a
linuxdeploy workflow that bundles the backend.
Refs #66
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>