chore(admin): 平台订单 lead_id 筛选增加清除入口

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

@@ -44,9 +44,20 @@
     @endphp
 
     @if($incomingLeadId > 0)
-        <div class="mt-10">
+        @php
+            // 清除 lead_id 筛选：保留其它筛选条件，但移除 lead_id/page。
+            $clearLeadQuery = $currentQuery;
+            unset($clearLeadQuery['lead_id'], $clearLeadQuery['page']);
+
+            $clearLeadUrl = '/admin/platform-orders';
+            if (count($clearLeadQuery) > 0) {
+                $clearLeadUrl .= '?' . \Illuminate\Support\Arr::query($clearLeadQuery);
+            }
+        @endphp
+        <div class="mt-10 actions">
             <span class="badge">当前线索：#{{ $incomingLeadId }}</span>
             <span class="muted muted-xs">（已按 lead_id 过滤订单集合）</span>
+            <a class="btn-secondary btn-sm" href="{!! $clearLeadUrl !!}">清除线索筛选</a>
         </div>
     @endif