build(server): update launcher for upstream b11015 numa syntax

scripts/start-server.sh

@@ -37,7 +37,7 @@ exec /opt/llama.cpp-xrip/build-nccl/bin/llama-server \
   --reasoning-effort xhigh \
   --reasoning-preserve \
   --reasoning-format deepseek \
-  --numa split \
+  --numa isolate \
   -ngl 99 \
   -c 131072 \
   --parallel 1 \