feat: vLLM serving numind/NuExtract3 on full GPU, ollama disabled

- Ollama scaled to 0 — vLLM gets entire 16GB GPU
- NuExtract3 (9B) running at 80% GPU utilization
- Both OLLAMA_BASE_URL and VLLM_BASE_URL point to vLLM service
- Fixed gremlin-1 missing default route (no internet access)
- Removed GPU resource limit (time-slicing handles allocation)
- Removed init container (direct download works with internet fix)

infra/kube-vllm/vllm-metrics.yaml

@@ -37,7 +37,7 @@ metadata:
 data:
   default.conf: |
     upstream vllm_backend {
-        server vllm.vllm-service.svc.cluster.local:8000;
+        server nuextract.vllm-service.svc.cluster.local:8000;
     }
 
     server {