fix(ci): Remove Ollama host port binding — port 11434 already in use

Host already has Ollama running (LibreChat). Our container only needs
internal docker network access via container name.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docker-compose.hetzner.yml

@@ -32,8 +32,6 @@ services:
     platform: linux/amd64
     volumes:
       - ollama_models:/root/.ollama
-    ports:
-      - "11434:11434"
     healthcheck:
       test: ["CMD-SHELL", "curl -sf http://127.0.0.1:11434/api/tags || exit 1"]
       interval: 15s