feat: update service versions and add backup configurations

- Update Authentik to 2025.6.4
- Update Dawarich and Karakeep to latest versions
- Add Paperless-NGX backup with S3 storage
- Improve GoToSocial backup configuration with better naming and retention
- Add dockcheck update labels for automated container monitoring

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

roles/docker/templates/paperlessngx-compose.yml.j2

@@ -57,6 +57,26 @@ services:
       glance.name: Tika
     restart: unless-stopped
 
+  backup:
+    image: offen/docker-volume-backup:v2
+    restart: always
+    labels:
+      glance.parent: paperlessngx
+      glance.name: Backup
+      mag37.dockcheck.update: true
+    environment:
+      BACKUP_FILENAME: pngx-backup-%Y-%m-%dT%H-%M-%S.tar.gz
+      BACKUP_CRON_EXPRESSION: "10 9 * * *"
+      BACKUP_PRUNING_PREFIX: pngx-
+      BACKUP_RETENTION_DAYS: 7
+      AWS_S3_BUCKET_NAME: tsolbackups
+      AWS_ENDPOINT: s3.us-west-004.backblazeb2.com 
+      AWS_ACCESS_KEY_ID: {{ vault_backup.access_key_id }}
+      AWS_SECRET_ACCESS_KEY: {{ vault_backup.secret_access_key }}
+    volumes:
+      - media:/backup/pngx-app-backup:ro
+      - /var/run/docker.sock:/var/run/docker.sock:ro
+
 volumes:
   data:
   media: