Fix: Complete authentik Quadlet implementation with networking solution

Resolves authentik deployment issues by implementing proper Podman Quadlet
configuration and fixing networking for external access through Caddy.

Core Fixes:
• Add missing [Install] sections to container Quadlet files for systemd service generation
• Fix pod references from 'systemd-authentik' to 'authentik.pod' for proper Quadlet linking
• Remove problematic --userns=host to use proper rootless user namespaces
• Configure subuid/subgid ranges for authentik user (200000:65536)
• Update networking to bind 0.0.0.0:9000 only (remove unnecessary HTTPS port 9443)
• Add AUTHENTIK_LISTEN__HTTP=0.0.0.0:9000 environment configuration
• Fix Caddy reverse proxy to use HTTP backend instead of HTTPS

Infrastructure Updates:
• Enhance PostgreSQL role with Unix socket configuration and user management
• Improve Valkey role with proper systemd integration and socket permissions
• Add comprehensive service integration documentation
• Update deployment playbooks with backup and restore capabilities

Security Improvements:
• Secure network isolation with Caddy SSL termination
• Reduced attack surface by removing direct HTTPS container exposure
• Proper rootless container configuration with user namespace mapping

Result: authentik now fully operational with external HTTPS access via auth.jnss.me
All systemd services (authentik-pod, authentik-server, authentik-worker) running correctly.

roles/authentik/templates/authentik-server.container

@@ -6,8 +6,15 @@ Requires=authentik-pod.service
 [Container]
 ContainerName={{ authentik_container_server_name }}
 Image={{ authentik_image }}:{{ authentik_version }}
-Pod=authentik
+Pod=authentik.pod
 EnvironmentFile={{ authentik_home }}/.env
+User={{ authentik_uid }}:{{ authentik_gid }}
+Annotation=run.oci.keep_original_groups=1
+
+# Logging configuration
+LogDriver=k8s-file
+LogOpt=path={{ authentik_home }}/logs/server.log
+Volume={{ authentik_home }}/logs:{{ authentik_home }}/logs
 
 # Volume mounts for data and sockets
 Volume={{ authentik_media_dir }}:/media