Platform orders index: clear lead filter via BackUrl::currentPathWithQuery

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

@@ -46,13 +46,11 @@
 
     // 列表视图：默认精简（避免列表过长）；view=full 展开全部列
     $isFullView = ((string) request()->query('view', '') === 'full');
-    $clearLeadQuery = $currentQuery;
-    unset($clearLeadQuery['lead_id'], $clearLeadQuery['page']);
-
-    $clearLeadUrl = '/admin/platform-orders';
-    if (count($clearLeadQuery) > 0) {
-        $clearLeadUrl .= '?' . \Illuminate\Support\Arr::query($clearLeadQuery);
-    }
+    // 清除线索锁定：移除 lead_id + page，但保留其它筛选上下文，并安全透传 back。
+    $clearLeadUrl = \App\Support\BackUrl::currentPathWithQuery([
+        'lead_id' => null,
+        'page' => null,
+    ], $safeBackForLinks);
 @endphp
 <div class="card mb-20">
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