add: RustDesk server deployment

- LXC 129 on pm2 with static IP 10.4.2.36
- Local DNS: rustdesk.kav
- Updated INFRASTRUCTURE.md and CHANGELOG.md

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

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

docs/INFRASTRUCTURE.md

@@ -60,6 +60,7 @@
 | **Home Assistant** | 10.4.2.33:8123 | VM 100 (pm1) | hass.kavcorp.com | homeassistant.kav |
 | **Ollama** | 10.4.2.34:11434 | LXC 123 (elantris) | ollama.kavcorp.com | ollama.kav |
 | **Twingate** | 10.4.2.35 | LXC 101 (pm1) | - | twingate.kav |
+| **RustDesk** | 10.4.2.36:21115-21119 | LXC 129 (pm2) | - | rustdesk.kav |
 | **Foundry VTT** | 10.4.2.37:30000 | LXC 112 (pm3) | vtt.kavcorp.com | foundryvtt.kav |
 
 ### Game Servers (10.4.2.40-49)