fix(bot): 修復 /bot/internal/cmd 呼叫未定義 verify_internal_token

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

routes/openclaw_bot_routes.py

@@ -5926,7 +5926,8 @@ def internal_cmd():
     """接受 momo-telegram-bot 轉發的 cmd:* 按鈕指令並執行"""
     try:
         token = request.headers.get('X-Internal-Token', '')
-        if not verify_internal_token(token):
+        _expected = os.getenv("INTERNAL_WEBHOOK_TOKEN", "")
+        if _expected and token != _expected:
             return jsonify({'ok': False, 'error': 'Unauthorized'}), 401
         body = request.get_json(silent=True) or {}
         chat_id = body.get('chat_id')