feat: add 鲸鱼APP spider skeleton with AES helpers

Co-Authored-By: Claude Opus 4.7 <[email protected]>

py/tests/test_鲸鱼APP.py

@@ -0,0 +1,24 @@
+import unittest
+from importlib.machinery import SourceFileLoader
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parents[1]
+MODULE = SourceFileLoader("jingyu_spider", str(ROOT / "鲸鱼APP.py")).load_module()
+Spider = MODULE.Spider
+
+
+class TestJingyuSpider(unittest.TestCase):
+    def setUp(self):
+        Spider._instance = None
+        self.spider = Spider()
+
+    def test_aes_encrypt_decrypt_roundtrip(self):
+        plaintext = '{"key":"value"}'
+        encrypted = self.spider._aes_encrypt(plaintext)
+        decrypted = self.spider._aes_decrypt(encrypted)
+        self.assertEqual(decrypted, plaintext)
+
+    def test_aes_encrypt_produces_base64(self):
+        import re
+        encrypted = self.spider._aes_encrypt("hello")
+        self.assertTrue(re.match(r'^[A-Za-z0-9+/=]+$', encrypted))