Add Netdata monitoring to infrastructure

- Added eckardt-monitoring.duckdns.org to nginx config
- Updated README with Netdata service entry
- Updated changelog

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

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

README.md

@@ -30,6 +30,7 @@ Internet
 | Gitea | 3000 | eckardt-git.duckdns.org | Git Repository |
 | Websites | 8082 | eckardt-vault.duckdns.org | Statische Websites |
 | API | 8000 | eckardt-vault.duckdns.org/api/ | FastAPI Backend |
+| **Netdata** | 19999 | eckardt-monitoring.duckdns.org | System Monitoring |
 | Audiobookshelf | 13378 | (intern) | Audiobook Server |
 
 ## Quick Start
@@ -195,3 +196,7 @@ Siehe [docs/TROUBLESHOOTING.md](docs/TROUBLESHOOTING.md) fuer:
 - Isolierte Docker-Netzwerke pro Service
 - Resource Limits (CPU/Memory) pro Container
 - Logging mit Rotation (10MB, 3 Files)
+- Netdata Monitoring hinzugefuegt (eckardt-monitoring.duckdns.org)
+  - Host + Docker Container Monitoring
+  - WireGuard + Fail2Ban Integration
+  - Separates Git-Repository: proxmox-netdata