docs: Complete local AI stack documentation

- Deployed Ollama + Open WebUI on Unraid
- Created custom unraid-assistant model with full infrastructure knowledge:
  - Network topology (8 VLANs, all IPs/gateways)
  - 45+ Docker containers with ports and purposes
  - RouterOS 7 commands and VLAN patterns
  - Traefik labels and Authentik SSO middleware
  - All xtrm-lab.org external URLs
- Added /usr/local/bin/ai terminal helper command
- Documented RAM optimization (stopped 5 containers)
- Added future upgrade notes for Mac Mini M4

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

docs/06-CHANGELOG.md

@@ -3,11 +3,18 @@
 ## 2026-01-26
 
 ### Local AI Stack Deployed
-- [AI] Deployed Ollama container with Intel GPU passthrough (/dev/dri)
+- [AI] Deployed Ollama container with Intel GPU passthrough
 - [AI] Deployed Open WebUI at http://192.168.31.2:3080
-- [AI] Installed qwen2.5-coder:7b model (4.7GB)
-- [AI] Stopped non-critical containers to free ~4.8GB RAM:
-  - karakeep, unimus, homarr, netdisco-web, netdisco-backend
+- [AI] Installed qwen2.5-coder:7b base model
+- [AI] Created custom `unraid-assistant` model with infrastructure knowledge:
+  - Network topology (all VLANs, IPs, gateways)
+  - 45+ Docker containers (names, ports, purposes)
+  - RouterOS 7 commands and patterns
+  - Traefik labels and Authentik middleware
+  - All external URLs (xtrm-lab.org)
+- [AI] Created `/usr/local/bin/ai` terminal helper command
+- [AI] Stopped non-critical containers for RAM: karakeep, unimus, homarr, netdisco-*
+
 
 ### VLAN Activation Attempt & Fixes
 - [VLAN] Configured CSS326 switch VLANs via SwOS web interface