feat: add routes, lang, tests, stubs, docs, and docker configurations

lang/vendor/filament-panels/zh_CN/error-notifications.php

@@ -0,0 +1,9 @@
+<?php
+
+return [
+
+    'title' => '页面加载出错',
+
+    'body' => '加载此页面时发生错误，请稍后重试。',
+
+];