feat(auth): Add authentication management script and update permissions for setup script

.env.example

@@ -14,22 +14,6 @@ GROUP_ID=1000
 # Your local timezone (e.g., America/New_York, Europe/London, Asia/Manila). See: https://en.wikipedia.org/wiki/List_of_tz_database_time_zones
 TIMEZONE="America/New_York"
 
-# --- Authentication Settings ---
-# Control which services require Authelia authentication (true/false)
-# Set to 'false' to disable authentication for specific services
-AUTH_SONARR=true
-AUTH_RADARR=true
-AUTH_BAZARR=true
-AUTH_PROWLARR=true
-AUTH_JELLYSEERR=true
-AUTH_QBITTORRENT=true
-AUTH_LIDARR=true
-AUTH_JELLYFIN=false
-AUTH_HOMEPAGE=true
-AUTH_FLARESOLVERR=true
-AUTH_SABNZBD=true
-AUTH_CALIBRE=true
-
 # --- Host Paths ---
 # Base directory on host for storing service configuration files. '.' stores them in subdirectories within the project folder.
 CONFIG_ROOT="."