**Motivations:**
- Ollama and AnythingLLM run on 192.168.1.164, not 192.168.1.173.
**Root causes:**
- Previous commit pointed upstreams at the ia host IP by mistake.
**Correctifs:**
- Upstreams back to 192.168.1.164:11434 and :3001; docs aligned.
**Evolutions:**
- N/A.
**Pages affectées:**
- deploy/nginx/sites/ia.enso.4nkweb.com.conf
- deploy/nginx/README-ia-enso.md
- docs/features/ia-enso-nginx-proxy-ollama-anythingllm.md
- docs/infrastructure.md
- docs/services.md