1.优化开奖逻辑

2.优化后台开奖派彩
3.优化接口规范

app/common/model/User.php

@@ -13,6 +13,30 @@ class User extends Model
 
     protected $autoWriteTimestamp = true;
 
+    /**
+     * 生成 10 位唯一对外标识（大写字母与数字，排除易混淆字符）
+     */
+    public static function generateUniquePublicCode10(): string
+    {
+        $chars = 'ABCDEFGHJKLMNPQRSTUVWXYZ23456789';
+        $len = strlen($chars);
+        for ($attempt = 0; $attempt < 80; $attempt++) {
+            $code = '';
+            for ($i = 0; $i < 10; $i++) {
+                $code .= $chars[random_int(0, $len - 1)];
+            }
+            if (!self::where('uuid', $code)->find()) {
+                return $code;
+            }
+        }
+        throw new \RuntimeException('Failed to generate unique user uuid');
+    }
+
+    public static function formatLoginRemark(int $timestamp, string $ip): string
+    {
+        return '最后登录：' . date('Y-m-d H:i:s', $timestamp) . ' IP:' . $ip;
+    }
+
     protected $type = [
         'create_time' => 'integer',
         'update_time' => 'integer',