chore(admin): 平台订单下单页展示来源线索上下文提示

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

@@ -8,6 +8,35 @@
     <p class="muted muted-tight">用于总台运营手工创建一笔平台订单（演示/补单/线下收款录入）。</p>
     <p class="muted">创建后可在「平台订单」列表中继续推进：标记支付并生效 → 同步订阅（形成最小收费闭环）。</p>
 
+    @php
+        $leadId = (int) old('lead_id', $defaults['lead_id'] ?? 0);
+        $incomingBackForLead = (string) ($defaults['back'] ?? '');
+        $leadBack = (str_starts_with($incomingBackForLead, '/')
+            && !preg_match('/["\'<>]/', $incomingBackForLead)
+            && !preg_match('/(?:^|[?&])back=/', $incomingBackForLead))
+            ? $incomingBackForLead
+            : '';
+
+        $viewLeadOrdersQuery = [
+            'lead_id' => $leadId,
+        ];
+        if ($leadBack !== '') {
+            $viewLeadOrdersQuery['back'] = $leadBack;
+        }
+
+        $viewLeadOrdersUrl = '/admin/platform-orders';
+        if ($leadId > 0) {
+            $viewLeadOrdersUrl .= '?' . \Illuminate\Support\Arr::query($viewLeadOrdersQuery);
+        }
+    @endphp
+
+    @if($leadId > 0)
+        <div class="mt-10 actions">
+            <span class="badge">来源线索：#{{ $leadId }}</span>
+            <a class="btn-secondary btn-sm" href="{!! $viewLeadOrdersUrl !!}">查看该线索关联订单</a>
+        </div>
+    @endif
+
     @if(($siteSubscription ?? null) && $siteSubscription->id)
         <div class="mt-10">
             <div class="muted">本订单将关联订阅：</div>

tests/Feature/AdminPlatformOrderFormShouldShowLeadContextHintTest.php

@@ -0,0 +1,68 @@
+<?php
+
+namespace Tests\Feature;
+
+use App\Models\Merchant;
+use App\Models\Plan;
+use App\Models\PlatformLead;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Support\Arr;
+use Tests\TestCase;
+
+class AdminPlatformOrderFormShouldShowLeadContextHintTest 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_create_form_should_show_lead_context_badge_and_view_orders_link(): void
+    {
+        $this->loginAsPlatformAdmin();
+
+        $merchant = Merchant::query()->firstOrFail();
+
+        $plan = Plan::query()->create([
+            'code' => 'lead_context_form_plan',
+            'name' => '下单页线索提示测试套餐',
+            'billing_cycle' => 'monthly',
+            'price' => 10,
+            'list_price' => 10,
+            'status' => 'active',
+            'sort' => 10,
+            'published_at' => now(),
+        ]);
+
+        $lead = PlatformLead::query()->create([
+            'name' => '线索提示',
+            'mobile' => '',
+            'email' => '',
+            'company' => '',
+            'source' => 'test',
+            'status' => 'new',
+            'plan_id' => $plan->id,
+            'meta' => ['merchant_id' => $merchant->id],
+        ]);
+
+        $res = $this->get('/admin/platform-orders/create?' . Arr::query([
+            'merchant_id' => $merchant->id,
+            'plan_id' => $plan->id,
+            'lead_id' => $lead->id,
+            'back' => '/admin/platform-leads',
+        ]));
+
+        $res->assertOk();
+        $res->assertSee('来源线索：#' . $lead->id, false);
+
+        // 入口应指向 platform-orders?lead_id=xxx（可带 back）
+        $res->assertSee('/admin/platform-orders?lead_id=' . $lead->id, false);
+        $res->assertSee('查看该线索关联订单', false);
+    }
+}