feat: update toggle region

script/toggle-region.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+# 切换 CN_REGION 环境变量
+# cn ↔ intl 切换
+
+if [ "$CN_REGION" = "1" ]; then
+    export CN_REGION=0
+    echo "[INFO] Region switched to: 0 (国外)"
+else
+    export CN_REGION=1
+    echo "[INFO] Region switched to: 1 (国内)"
+fi
+