Initial import: bare-metal stacks, Server UI, GPU fan, tutorials.

Infrastructure configs for GMKtec K11 (Docker, vLLM, LocalAI, ComfyUI,
control-plane, gpu-fan agent, Server UI with CLI/file explorer/GPU fan curve).

Co-authored-by: Cursor <cursoragent@cursor.com>

stacks/npmplus/scripts/ensure-dirs.sh

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+# Create NPMPlus data directory on the data disk.
+
+ensure_npmplus_dirs() {
+  local data_root="${1:-/data}"
+  mkdir -p "${data_root}/apps/npmplus"
+}
+
+if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
+  ensure_npmplus_dirs "${1:-/data}"
+fi