Backend
- regenerate_identity command stops the daemon, deletes
priv_key.bin, leaves the user to restart for a fresh identity;
falls back to the canonical XDG path when sidecar.key_path()
isn't populated yet
- tauri.conf.json ships the polkit policy via deb.files mapping;
src-tauri/packaging/polkit/tech.threefold.mycellium-ui.policy
declares the spawn action with auth_admin_keep so the dialog
appears once per session
Frontend
- config store persists SidecarConfig (peers, tunName, noTun)
through tauri-plugin-store; App.vue reads it and forwards to
start_daemon, replacing the hard-coded defaults
- Settings view: daemon-config form, identity panel with the
destructive regenerate button, sidecar log viewer, About
- README rewritten end-to-end: HTTP-loopback architecture, polkit
install path, build commands, verification matrix, and a
honest "known limitations" section
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