ApiConfig: avoid using pbs_config::backup_user() CommandoSocket: avoid using pbs_config::backup_user() FileLogger: avoid using pbs_config::backup_user() - use atomic_open_or_create_file() Auth Trait: moved definitions to proxmox-rest-server/src/lib.rs - removed CachedUserInfo patrameter - return user as String (not Authid) Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>