chore(front): 对外平台官网样式外置到 platform.css + 护栏测试

tests/Feature/FrontPlatformPagesUseExternalCssTest.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Tests\Feature;
+
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Tests\TestCase;
+
+class FrontPlatformPagesUseExternalCssTest extends TestCase
+{
+    use RefreshDatabase;
+
+    public function test_platform_pages_should_link_platform_css_and_not_inline_style_block(): void
+    {
+        $res1 = $this->get('/platform');
+        $res1->assertOk();
+        $res1->assertSee('<link rel="stylesheet" href="/css/platform.css">', false);
+        $res1->assertDontSee('<style>', false);
+
+        $res2 = $this->get('/platform/plans');
+        $res2->assertOk();
+        $res2->assertSee('<link rel="stylesheet" href="/css/platform.css">', false);
+        $res2->assertDontSee('<style>', false);
+    }
+}