# Test Plan: Live Config Profile Refresh

## Backend

- Canonical file and directory paths are profile-scoped and reject traversal.
- Two compatible instances receive the same host mount source.
- A container-side file edit is visible through the profile read API and another instance mount.
- A profile save updates canonical content and returns overwrite warnings when applicable.
- Topology, environment, runtime, and legacy-instance changes return `restart_required`.
- Incompatible users return `incompatible_permissions`.
- Deleting a profile with running dependents is rejected with their instance identifiers.
- Git mount content is unchanged by this feature.

## Container/image compatibility

- Each built-in supported image uses the common non-root UID/GID.
- Generated manifest Dockerfiles and entrypoints retain that user and writable mount access.
- Existing instances are not mutated until restart/recreation.

## Frontend

- Desktop and mobile save flows display refreshed/shared-working-copy, overwrite-warning, restart-required, and incompatible-permissions results.

## Manual QA

- Open two compatible instances using one profile; edit a mounted file in one terminal and verify it in the other.
- Save a profile edit and verify both running instances see it without terminal disconnection.
- Verify profile deletion is blocked while either instance is running.
