Cleanup: Remove Pi-hole, add AdGuard Home Sync, add Uptime Kuma monitors

- Removed Pi-hole container (using MikroTik AdGuard Home as primary)
- Removed nebula-sync container (not in use)
- Added adguardhome-sync for rule syncing between MikroTik and Unraid AdGuard
- Added 27 monitors to Uptime Kuma for all services
- Updated container IP assignments
- Migrated NetBox to shared postgresql17

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docs/13-CONTAINER-IP-ASSIGNMENTS.md

@@ -44,6 +44,7 @@ Static IP range: 172.18.0.2 - 172.18.0.99
 | Nextcloud | 172.18.0.24 | Cloud storage | Template |
 | karakeep | 172.18.0.25 | Bookmark manager | Template |
 | transmission | 172.18.0.26 | Torrent client | Template |
+| adguardhome-sync | 172.18.0.27 | AdGuard Home Sync | Compose |
 
 ### DevOps (172.18.0.31 - 172.18.0.40)
 
@@ -101,7 +102,6 @@ These containers have direct LAN access via macvlan.
 
 | Container | Static IP | Purpose | Config |
 |-----------|-----------|---------|--------|
-| binhex-official-pihole | 192.168.31.4 | DNS sinkhole | Template |
 | unbound | 192.168.31.5 | Recursive DNS | Template |
 | TimeMachine | 192.168.31.12 | Time Machine backup | Template |
 
@@ -132,7 +132,6 @@ These containers share the host network stack.
 | plex | Media server |
 | HomeAssistant_inabox | Home automation |
 | stunnel-dot | DNS over TLS |
-| nebula-sync | Nebula mesh sync |
 
 ---
 
@@ -157,6 +156,7 @@ These containers share the host network stack.
 | Woodpecker | `/mnt/user/appdata/woodpecker/docker-compose.yml` |
 | Pangolin | `/mnt/user/appdata/pangolin/docker-compose.yml` |
 | Slurp'it | `/mnt/user/appdata/slurpit/docker-compose.yml` |
+| AdGuard Home Sync | `/mnt/user/appdata/adguard-sync/docker-compose.yml` |
 
 ---
 
@@ -175,7 +175,7 @@ Use Unraid Docker UI to update/recreate - static IP is preserved in template.
 ### Verify IPs
 ```bash
 # Check all IPs on a network
-docker network inspect <network> --format '{{range .Containers}}{{.Name}}: {{.IPv4Address}}{{"\\n"}}{{end}}'
+docker network inspect <network> --format '{{range .Containers}}{{.Name}}: {{.IPv4Address}}{{"\n"}}{{end}}'
 
 # Check specific container
 docker inspect <container> | jq '.[0].NetworkSettings.Networks'