AssetManager 0.5.5.43

Changes

Added first-start initialization for persistent config.json and APPINFO.json when using the Docker image.
Existing persistent configuration files are never overwritten by the container entrypoint.
Added an image ownership cleanup for the bundled MeshCentral Node.js dependencies to avoid invalid UID/GID extraction errors on other Docker hosts.
Prepared the Docker image for registry-based installations and updates with persistent configuration volumes.