chore(M00): 补齐WSL EMQX辅助入口

scripts/dev/wsl/start-emqx.sh

@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+echo "INFO: starting WSL local EMQX service"
+
+if ! command -v systemctl >/dev/null 2>&1; then
+  echo "FAIL: systemctl not found; start EMQX manually in this WSL environment"
+  exit 1
+fi
+
+if ! dpkg-query -W emqx >/dev/null 2>&1; then
+  echo "FAIL: emqx package not found; this script does not install or reset EMQX"
+  exit 1
+fi
+
+if systemctl is-active --quiet emqx; then
+  echo "PASS: emqx service already active"
+  exit 0
+fi
+
+sudo systemctl start emqx
+systemctl is-active --quiet emqx && echo "PASS: emqx service active" || {
+  echo "FAIL: emqx service did not become active"
+  exit 1
+}