平台订单：补齐 BMPA 单订单清理入口（路由+控制器+详情页按钮+测试）

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

@@ -368,6 +368,7 @@
 @php
     $activation = data_get($order->meta, 'subscription_activation');
     $activationError = data_get($order->meta, 'subscription_activation_error');
+    $bmpaError = data_get($order->meta, 'batch_mark_paid_and_activate_error');
     $audit = (array) (data_get($order->meta, 'audit', []) ?? []);
     $paymentReceipts = (array) (data_get($order->meta, 'payment_receipts', []) ?? []);
     $refundReceipts = (array) (data_get($order->meta, 'refund_receipts', []) ?? []);
@@ -588,6 +589,31 @@
     @endif
 </div>
 
+<div class="card mb-20">
+    <div class="flex-between">
+        <h3>最近一次 BMPA 失败</h3>
+        @if($bmpaError)
+            <form method="post" action="/admin/platform-orders/{{ $order->id }}/clear-bmpa-error" onsubmit="return confirm('确认清除该订单的 BMPA 失败标记？该操作仅清理 meta 标记，不会改变订阅/订单状态。');">
+                @csrf
+                <button class="btn btn-danger btn-sm" type="submit">清除 BMPA 失败标记</button>
+            </form>
+        @endif
+    </div>
+
+    @if($bmpaError)
+        <table>
+            <tbody>
+            <tr><th class="w-160">失败原因</th><td>{{ data_get($bmpaError, 'message') }}</td></tr>
+            <tr><th>失败时间</th><td>{{ data_get($bmpaError, 'at') ?: '-' }}</td></tr>
+            <tr><th>操作管理员</th><td>{{ data_get($bmpaError, 'admin_id') ?: '-' }}</td></tr>
+            </tbody>
+        </table>
+        <div class="muted muted-xs mt-6">提示：当你已修复导致 BMPA 失败的原因（回执/退款/权限/幂等等），但历史失败标记仍残留时，可先清理标记，再重新执行 BMPA。</div>
+    @else
+        <p class="muted">暂无失败记录。</p>
+    @endif
+</div>
+
 <div class="card mb-20">
     <h3>审计记录（最近 20 条）</h3>
     @if(count($audit) > 0)
@@ -595,6 +621,7 @@
             $auditItems = array_slice(array_reverse($audit), 0, 20);
             $auditActionLabels = [
                 'clear_sync_error' => '清除同步失败标记',
+                'clear_bmpa_error' => '清除 BMPA 失败标记',
                 'batch_activate_subscription' => '批量同步订阅',
                 'mark_activated' => '仅标记为已生效',
                 'batch_mark_activated' => '批量仅标记为已生效',