ci: run setup_ld_library_path before install_sglang_kernel (#24141)

scripts/ci/cuda/ci_install_dependency.sh

@@ -234,6 +234,16 @@ install_sglang() {
     echo "Installing python extras: [${EXTRAS}]"
     $PIP_CMD install -e "python[${EXTRAS}]" $PIP_INSTALL_SUFFIX
 
+    # Defensive: some runners ended up with nvidia-cusparselt-cu13 metadata
+    # present but libcusparseLt.so.0 missing on disk, breaking any torch import.
+    # If the file is missing, force-reinstall the wheel before downstream steps.
+    SITE_PACKAGES=$(python3 -c "import site; print(site.getsitepackages()[0])")
+    if [ ! -f "$SITE_PACKAGES/nvidia/cusparselt/lib/libcusparseLt.so.0" ] \
+       && pip show nvidia-cusparselt-cu13 >/dev/null 2>&1; then
+        echo "WARNING: nvidia-cusparselt-cu13 metadata present but libcusparseLt.so.0 missing — reinstalling"
+        $PIP_CMD install --reinstall nvidia-cusparselt-cu13 $PIP_INSTALL_SUFFIX
+    fi
+
     mark_step_done "${FUNCNAME[0]}"
 }