feat: 验证码加限流

app/admin/route/v1.php

@@ -15,7 +15,12 @@ Route::group('v1', function () {
     // 用户模块
     Route::group('user', function () {
         // 获取验证码
-        Route::get('captcha', 'Captcha/index');
+        Route::get('captcha', 'Captcha/index')->middleware(\think\middleware\Throttle::class, [
+            'visit_rate' => '5/m',
+            'visit_fail_response' => function (\think\middleware\Throttle $throttle, \think\Request $request, int $wait_seconds) {
+                return \think\Response::create('您的操作过于频繁, 请在 ' . $wait_seconds . ' 秒后再试。')->code(429);
+            },
+        ]);
         
         // 登录接口
         Route::post('login', 'Login/index');