add untrusted toggle

apk-untrusted-toggle.sh

@@ -0,0 +1,17 @@
+#!/bin/sh
+
+FILE="/usr/libexec/package-manager-call"
+MARKER="# === AUTO ALLOW UNTRUSTED ==="
+
+if grep -q "$MARKER" "$FILE" 2>/dev/null; then
+    sed -i "/$MARKER/,+3d" "$FILE"
+    echo "✅ 已关闭！LuCI 恢复需要签名检查。"
+else
+    sed -i '/case "\$action" in/i\
+                        # '"$MARKER"'\
+                        if [ "\$action" = "add" ]; then\
+                                cmd="\$cmd --allow-untrusted"\
+                        fi\
+' "$FILE"
+    echo "✅ 已开启！现在 LuCI 可直接装第三方 apk。"
+fi