Initialize encryption and JavaScript reverse-engineering study repository

Document the project structure and setup while excluding local dependencies and IDE settings.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

非对称加密-2026-08-31/实战案例-中国观鸟记录中心/混淆代码.js

@@ -0,0 +1,9 @@
+_0x48989b["prototype"]['decode'] = function (_0x291626) {
+    var _0x3c6fa1 = CryptoJS['enc']["Utf8"]["parse"]("C8EB5514AF5ADDB94B2207B08C66601C")
+        , _0x3ec027 = CryptoJS["enc"]["Utf8"]["parse"]("55DD79C6F04E1A67");
+    return CryptoJS["AES"]["decrypt"](_0x291626, _0x3c6fa1, {
+        'iv': _0x3ec027,
+        'mode': CryptoJS["mode"]['CBC'],
+        'padding': CryptoJS['pad']["Pkcs7"]
+    })['toString'](CryptoJS['enc']['Utf8']);
+}