feat: update Restic backup configuration
Updated Restic backup system to include all current services:
**Volume Mounts Added:**
- vpn_etc_wireguard (WireGuard VPN configuration)
- netdata_config (Netdata monitoring configuration)
**Backup Plans Updated:**
- Replaced gotify-backup with mattermost-backup
- Now backs up: mattermost_config, mattermost_data, mattermost_plugins
- Retention: 7 daily, 4 weekly, 6 monthly, 2 yearly
- Added tandoor-backup
- Backs up: tandoor_staticfiles, tandoor_mediafiles
- Schedule: 5 AM daily
- Retention: 7 daily, 4 weekly, 6 monthly
- Added vpn-backup
- Backs up: vpn_etc_wireguard (critical for VPN restoration)
- Schedule: 9 AM daily
- Retention: 7 daily, 4 weekly, 12 monthly, 3 yearly
- Added netdata-backup
- Backs up: netdata_config
- Schedule: 10 AM daily
- Retention: 7 daily, 4 weekly, 3 monthly
**Backup Schedule:**
- 2 AM: postgres, joplin
- 3 AM: redis
- 4 AM: directus (uploads, bundle)
- 5 AM: awesome, mattermost, tandoor
- 6 AM: scrapy, n8n
- 7 AM: filestash, linkwarden
- 8 AM: letsencrypt, vaultwarden
- 9 AM: jellyfin, vpn
- 10 AM: netdata
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Sebastian Krüger
9e379c008e