feat(withdraw): 落地方案B一体化商城余额提现与手续费内扣模式，完善多端打款退款与对账闭环

addons/shopro/controller/Pay.php

@@ -163,15 +163,41 @@ class Pay extends Common
         // 微信公众号，小程序支付，必须有 openid
         if ($payment == 'wechat') {
             if (in_array($platform, ['WechatOfficialAccount', 'WechatMiniProgram'])) {
+                $targetPlatform = lcfirst(str_replace('Wechat', '', $platform));
                 if (isset($openid) && $openid) {
                     // 如果传的有 openid
                     $order_data['payer']['openid'] = $openid;
+
+                    // 自愈绑定：若当前用户在 third_oauth 中尚无对应平台的绑定记录，自动补建
+                    if ($platform == 'WechatMiniProgram') {
+                        $oauth = \app\admin\model\shopro\ThirdOauth::where([
+                            'user_id' => $order->user_id,
+                            'provider' => 'wechat',
+                            'platform' => $targetPlatform
+                        ])->find();
+                        if (!$oauth) {
+                            $existOauth = \app\admin\model\shopro\ThirdOauth::getByOpenid($openid);
+                            if (!$existOauth) {
+                                \app\admin\model\shopro\ThirdOauth::create([
+                                    'user_id'    => $order->user_id,
+                                    'provider'   => 'wechat',
+                                    'platform'   => $targetPlatform,
+                                    'openid'     => $openid,
+                                    'createtime' => time(),
+                                    'updatetime' => time(),
+                                ]);
+                            } elseif ($existOauth->user_id == 0) {
+                                $existOauth->user_id = $order->user_id;
+                                $existOauth->save();
+                            }
+                        }
+                    }
                 } else {
                     // 没有 openid 默认拿下单人的 openid
                     $oauth = \app\admin\model\shopro\ThirdOauth::where([
-                        'user_id' => $order->user_id,
-                        'provider' => 'Wechat',
-                        'platform' => lcfirst(str_replace('Wechat', '', $platform))
+                        'user_id'  => $order->user_id,
+                        'provider' => 'wechat',
+                        'platform' => $targetPlatform
                     ])->find();
 
                     $order_data['payer']['openid'] = $oauth ? $oauth->openid : '';