M4: 插件框架（钩子系统/ZIP安装/市场客户端）+ blog-seo 插件（JSON-LD/OG/llms.txt/Markdown导出）+ 后台插件/主题管理页

plugins/neatstudio.blog-seo/routes/web.php

@@ -0,0 +1,8 @@
+<?php
+
+use Illuminate\Support\Facades\Route;
+use Plugins\Neatstudio\BlogSeo\Http\SeoController;
+
+// GEO：面向 AI 搜索引擎（LLM 爬虫）
+Route::get('/llms.txt', [SeoController::class, 'llmsTxt'])->name('geo.llms');
+Route::get('/posts/{slug}.md', [SeoController::class, 'postMarkdown'])->where('slug', '[A-Za-z0-9\-]+')->name('geo.post.markdown');