M2: 主题系统（sablog经典+modern简约）+ 前台全部页面 + 老 URL 301 兼容 + markdown 双份导入

app/Blog/Controllers/CategoryController.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Blog\Controllers;
+
+use App\Models\Category;
+use App\Models\Post;
+
+class CategoryController extends Controller
+{
+    public function show(string $slug)
+    {
+        $category = Category::query()->where('slug', $slug)->orWhere('id', (int) $slug)->firstOrFail();
+
+        $posts = $category->posts()
+            ->published()
+            ->latest('published_at')
+            ->paginate((int) blog_setting('per_page', config('blog.per_page')));
+
+        return theme_view('list', compact('category', 'posts'));
+    }
+}