[XPU][NIGHTLY] Add 8 XPU nightly tests, enable 1-gpu suite (#30246)

Co-authored-by: arathi-hlab <arathi-hlab@users.noreply.github.com>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

scripts/ci/xpu/xpu_ci_start_container.sh

@@ -98,6 +98,9 @@ elif [[ -r "${HF_TOKEN_FILE}" ]]; then
 fi
 
 echo "Launching container: ${CONTAINER_NAME} from ${IMAGE}"
+# SGLANG_SERVER_LAUNCH_TIMEOUT=36000 matches /data/pgirijal/scripts/setup_upstream_env.sh:
+# 4-GPU MoE loads (Qwen3.5-35B-A3B, gemma-4-26B-A4B, ...) on Arc Pro B60 can
+# take >1h from a cold HF cache, so give sglang server startup a 10h ceiling.
 docker run -dt \
   --shm-size 8g \
   --group-add 992 \
@@ -108,6 +111,7 @@ docker run -dt \
   -v "${HOME}/.cache/huggingface:/root/.cache/huggingface" \
   -v "${GITHUB_WORKSPACE:-$PWD}:/sglang-checkout" \
   -e HF_TOKEN="${HF_TOKEN_VALUE}" \
+  -e SGLANG_SERVER_LAUNCH_TIMEOUT=36000 \
   --name "${CONTAINER_NAME}" \
   "${IMAGE}"