feat: 前台 .shtml 后缀 canonical + strict_types 全量启用 + 对外 API（Sanctum+Scramble 文档）+ pm2 ecosystem + GitHub Actions CI + 插件/主题/架构/API 文档 + REDIS_PREFIX 说明

tests/Feature/MembershipFlowTest.php

@@ -87,7 +87,7 @@ class MembershipFlowTest extends TestCase
         ]);
 
         // 游客：付费部分被替换
-        $this->get('/posts/paid-post')
+        $this->get('/posts/paid-post.shtml')
             ->assertOk()
             ->assertDontSee('付费隐藏内容')
             ->assertSee('付费内容已隐藏');
@@ -97,7 +97,7 @@ class MembershipFlowTest extends TestCase
         $payment = Payment::query()->where('user_id', $this->user->id)->first();
         $this->actingAs($this->user)->post('/pay/sandbox/'.$payment->order_no.'/confirm');
 
-        $this->actingAs($this->user)->get('/posts/paid-post')
+        $this->actingAs($this->user)->get('/posts/paid-post.shtml')
             ->assertOk()
             ->assertSee('付费隐藏内容');
     }