refactor(install): 种子退役，migrate:run 一条命令完成建表与初始数据

新增 InitDataAlignService 六域对齐（超管/角色/权限节点/配置/快捷入口/商城演示）与 20260909130000 迁移；SystemAdmin 快照以字面量哈希入库；删除种子三件与安装锁依赖，seeds 目录留 .gitkeep；README/tests/规则等 11 处说明同步。

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

database/seeds/.gitkeep

@@ -0,0 +1 @@
+# 种子已退役：migrate:run 是唯一安装命令；下游业务仍可放自己的种子文件

database/seeds/InitBaseAdminData.php

@@ -1,52 +0,0 @@
-<?php
-
-use app\admin\model\SystemConfig;
-use app\admin\service\AdminInitService;
-use app\admin\service\TriggerService;
-use think\migration\Seeder;
-
-class InitBaseAdminData extends Seeder
-{
-    /**
-     * Run Method.
-     *
-     * Write your database seeder using this method.
-     *
-     * More information on writing seeders is available here:
-     * http://docs.phinx.org/en/latest/seeding.html
-     */
-    public function run():void
-    {
-        $output = $this->getOutput();
-
-        TriggerService::updateSysconfig();
-
-        $install_lock = sysconfig('base_admin_install', true, 0);
-
-        if ($install_lock == 1) {
-            $output->writeln('系统已初始化，跳过当前程序');
-
-            return;
-        }
-
-        $model_config = SystemConfig::where('group', 'system')
-            ->where('name', 'base_admin_install')
-            ->find();
-
-        if (empty($model_config)) {
-            $model_config = new SystemConfig();
-
-            $model_config->group = 'system';
-            $model_config->name = 'base_admin_install';
-            $model_config->remark = '系统初始化锁定，请勿修改，避免插入重复数据';
-        }
-
-        $model_config->value = 1;
-
-        $model_config->save();
-
-        TriggerService::updateSysconfig();
-
-        (new AdminInitService($output))->init();
-    }
-}