feat(portal): lead module, WHMCS sync report/contacts/mapping, service lifecycle email templates

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

tests/Feature/Api/Admin/MarketingEmailOptOutTest.php

@@ -86,4 +86,22 @@ class MarketingEmailOptOutTest extends TestCase
 
         Queue::assertNotPushed(SendMailCampaignRecipient::class);
     }
+
+    public function test_campaign_with_template_uses_edited_message_when_given(): void
+    {
+        Queue::fake();
+        $admin = $this->admin();
+        $customer = Customer::factory()->create(['email_marketing' => 1]);
+
+        $this->actingAs($admin, 'admin')
+            ->postJson('/api/v1/administrator/mail-campaigns', [
+                'template_id'    => $this->template(null)->id,
+                'message'        => '<p>Nội dung đã sửa</p>',
+                'recipient_type' => 'selected',
+                'uuids'          => [$customer->uuid],
+            ])
+            ->assertOk();
+
+        $this->assertSame('<p>Nội dung đã sửa</p>', \App\Models\MailCampaign::latest('id')->first()->message);
+    }
 }