仓库中添加内置的demo

demo/lib.d.ts/SDKHelper.d.ts

@@ -0,0 +1,16 @@
+/**
+ * @Author: Gongxh
+ * @Date: 2025-03-21
+ * @Description: 
+ */
+
+declare namespace KunpoSDK {
+    class SDKHelper {
+        static getInstance(): SDKHelper;
+
+        public getSystemInfo(): void;
+        public getVersionCode(): string;
+        public getBuildCode(): number;
+
+    }
+}