feat(admin): 续费缺订阅时 BMPA 提示补齐去订阅管理查找订阅入口

resources/views/admin/platform_orders/show.blade.php

@@ -209,6 +209,16 @@
         $markPaidBlockedByMissingSubscriptionOnRenewal = ((string) ($order->order_type ?? '') === 'renewal')
             && ((int) ($order->site_subscription_id ?? 0) <= 0);
 
+        // 治理引导：续费缺订阅时提供“去订阅管理查找订阅”入口（回到当前订单详情自身）
+        $missingSubscriptionHelpUrl = '';
+        if ($markPaidBlockedByMissingSubscriptionOnRenewal) {
+            $missingSubscriptionHelpUrl = \App\Support\BackUrl::withBack('/admin/site-subscriptions?' . \Illuminate\Support\Arr::query([
+                'merchant_id' => (int) ($order->merchant_id ?? 0) ?: null,
+                'plan_id' => (int) ($order->plan_id ?? 0) ?: null,
+                'page' => null,
+            ]), $orderShowSelf);
+        }
+
         $tol = (float) config('saasshop.amounts.tolerance', 0.01);
         $tolCents = (int) round($tol * 100);
         $tolCents = max(1, $tolCents);
@@ -238,6 +248,10 @@
                             原因：当前订单类型为「续费」，但未绑定订阅（site_subscription_id 为空）。
                             <span class="muted">｜</span>
                             <span class="muted">请先补齐订阅关联后再处理。</span>
+                            @if($missingSubscriptionHelpUrl !== '')
+                                <span class="muted">｜</span>
+                                <a class="btn btn-secondary btn-sm" href="{!! $missingSubscriptionHelpUrl !!}">去订阅管理查找订阅</a>
+                            @endif
                         </div>
                     @endif
                     @if($markPaidBlockedByReceiptMismatch)