fix: 移除 limit_agent 白名单限制，所有代理下会员均可充值/提现

- config.php: area_id=3 的 limit_agent 改为空数组
- Order.php/epayPay.php/ccpayPay.php: 空数组时跳过白名单检查

application/onlinechip/controller/traits/ccpayPay.php

@@ -43,8 +43,9 @@ trait ccpayPay
             return json(['Success' => 1, 'Data' => $data]);
         }
 
-        $isAllow = false;
-        foreach ($area_list[$user['area_id']]['limit_agent'] as $allowAgentId) {
+        $limitAgents = $area_list[$user['area_id']]['limit_agent'];
+        $isAllow = empty($limitAgents);
+        foreach ($limitAgents as $allowAgentId) {
             if (in_array($allowAgentId, $zdlIdArr)) {
                 $isAllow = true;
             }

application/onlinechip/controller/traits/epayPay.php

@@ -88,8 +88,9 @@ trait epayPay
             return json(['Success' => 1, 'Data' => $data]);
         }
 
-        $isAllow = false;
-        foreach ($area_list[$user['area_id']]['limit_agent'] as $allowAgentId) {
+        $limitAgents = $area_list[$user['area_id']]['limit_agent'];
+        $isAllow = empty($limitAgents);
+        foreach ($limitAgents as $allowAgentId) {
             if (in_array($allowAgentId, $zdlIdArr)) {
                 $isAllow = true;
             }