Restores the Tauri-era Qobuz Connect startup setting, now in
Settings > Playback per owner request. Reuses the shared
qconnect-app::startup module (QconnectStartupMode +
compute_effective_startup, unit-tested) and Tauri's exact
qconnect_settings.db keys (startup_mode / last_known_state), so an
upgrading user's choice survives. last_known_state is written at the
manual toggle's success points only — internal teardowns (D5 offline
force-disconnect, bootstrap failure cleanup) never clobber the
remembered state, mirroring Tauri's command layer. Startup auto-connect
runs post-enter_shell (online sessions only, once per process) through
the same connect() path as the toggle, on Tauri's bounded retry
schedule, bailing silently under offline mode instead of toasting per
retry. Select row mirrors the quality-retries row; 5 msgids x8 locales.
cc
vicrodh
00a44e123f