add user manager and auth for backend

backend/migrations/2025_11_10_021005_create_users_table.php

@@ -0,0 +1,38 @@
+<?php
+
+use Hyperf\Database\Schema\Schema;
+use Hyperf\Database\Schema\Blueprint;
+use Hyperf\Database\Migrations\Migration;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('users', function (Blueprint $table) {
+            $table->bigIncrements('id');
+            $table->string('username', 100)->unique()->comment('用户名');
+            $table->string('password')->comment('密码');
+            $table->string('email', 100)->unique()->comment('邮箱');
+            $table->tinyInteger('status')->default(1)->comment('状态：0=禁用，1=启用');
+            $table->text('ext')->nullable()->comment('扩展信息（JSON格式）');
+            $table->string('refresh_token', 500)->nullable()->comment('刷新令牌');
+            $table->timestamp('refresh_token_expires_at')->nullable()->comment('刷新令牌过期时间');
+            $table->datetimes();
+
+            $table->index('username');
+            $table->index('email');
+            $table->index('status');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('users');
+    }
+};