refactor: reintroduce license modules as no-op compatibility shims

_auth_check.py

@@ -1,44 +1,20 @@
 #!/usr/bin/env python3
-import sys
-import hashlib
-import os
+# -*- coding: utf-8 -*-
+"""Compatibility auth shim.
 
-# 混淆的授权检查
-_x = "oipmuxel"
-_y = hashlib.sha256(_x.encode()).hexdigest()
+This project previously performed import-time authorization checks via
+`import _auth_check`. The check is intentionally disabled now, but we keep
+this module to avoid runtime/import errors for any legacy extension code that
+still imports `_auth_check`.
+"""
 
-def check_license():
-    """检查授权"""
-    try:
-        if not os.path.exists("license.key"):
-            return False
-        with open("license.key", "r") as f:
-            key = f.read().strip()
-        # 验证授权码格式
-        if "|" not in key or len(key.split("|")) != 3:
-            return False
-        # 验证授权码
-        from offline_license_checker import OfflineLicenseChecker
-        checker = OfflineLicenseChecker()
-        valid, _, _ = checker.verify_license()
-        return valid
-    except:
-        return False
+from __future__ import annotations
 
-def show_purchase_info():
-    """显示购买信息"""
-    print("\n" + "="*60)
-    print("⚠️  需要授权码才能运行")
-    print("="*60)
-    print("\n💰 购买授权请联系：")
-    print("   Telegram: https://t.me/sonhshu")
-    print("\n💳 订阅价格：")
-    print("   月付：50 USDT/月")
-    print("   季付：135 USDT/季（优惠10%）")
-    print("   年付：510 USDT/年（优惠15%）")
-    print("="*60 + "\n")
-    sys.exit(1)
 
-# 自动执行检查
-if not check_license():
-    show_purchase_info()
+def check_license() -> bool:
+    """Legacy API: always returns True."""
+    return True
+
+
+# Keep side effects empty on import.
+AUTH_ENABLED = False