修复seeder错误；删除第三方的think迁移工具，在extend中重新实现；

extend/phinx/Seed/Seed.template.php.dist

@@ -0,0 +1,20 @@
+<?php
+$namespaceDefinition
+
+use $useClassName;
+
+class $className extends $baseClassName
+{
+    /**
+     * Run Method.
+     *
+     * Write your database seeder using this method.
+     *
+     * More information on writing seeders is available here:
+     * https://book.cakephp.org/phinx/0/en/seeding.html
+     */
+    public function run(): void
+    {
+
+    }
+}