chore(admin): 平台订单 lead_id 筛选增加清除入口

tests/Feature/AdminPlatformOrderIndexClearLeadFilterLinkTest.php

@@ -0,0 +1,64 @@
+<?php
+
+namespace Tests\Feature;
+
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Support\Arr;
+use Tests\TestCase;
+
+class AdminPlatformOrderIndexClearLeadFilterLinkTest extends TestCase
+{
+    use RefreshDatabase;
+
+    protected function loginAsPlatformAdmin(): void
+    {
+        $this->seed();
+
+        $this->post('/admin/login', [
+            'email' => 'platform.admin@demo.local',
+            'password' => 'Platform@123456',
+        ])->assertRedirect('/admin');
+    }
+
+    public function test_index_should_render_clear_lead_filter_link_when_lead_id_present(): void
+    {
+        $this->loginAsPlatformAdmin();
+
+        $url = '/admin/platform-orders?' . Arr::query([
+            'lead_id' => 12,
+            'payment_status' => 'paid',
+            'page' => 3,
+        ]);
+
+        $res = $this->get($url);
+        $res->assertOk();
+
+        $html = $res->getContent();
+
+        $res->assertSee('清除线索筛选', false);
+
+        preg_match_all('/href="([^"]+)"/', $html, $matches);
+        $hrefs = $matches[1] ?? [];
+
+        $clearUrls = array_values(array_filter($hrefs, fn ($u) => str_contains($u, '清除') === false && str_contains($u, '/admin/platform-orders')));
+
+        // 在所有 href 中找一个不带 lead_id、不带 page，但仍保留 payment_status 的链接
+        $found = false;
+        foreach ($hrefs as $u) {
+            if (!str_contains($u, '/admin/platform-orders')) {
+                continue;
+            }
+            $parts = parse_url($u);
+            parse_str($parts['query'] ?? '', $q);
+
+            if (!isset($q['lead_id'])
+                && !isset($q['page'])
+                && ($q['payment_status'] ?? '') === 'paid') {
+                $found = true;
+                break;
+            }
+        }
+
+        $this->assertTrue($found, '未找到正确的“清除线索筛选”链接（应移除 lead_id/page 并保留其它筛选）');
+    }
+}