refactor(member): 重构会员游戏账号生成逻辑

- 在 ApiMemberController 中调用 memberService.getMemberGameAccount() 替代原有逻辑
- 在 IMemberService 中添加 getMemberGameAccount 方法接口
- 在 MemberServiceImpl 中实现 getMemberGameAccount 方法，生成唯一的游戏账号- 新增 RandomGeneratorUtils 工具类，用于生成随机账号字符串

ff-base/src/main/java/com/ff/base/utils/RandomGeneratorUtils.java

@@ -0,0 +1,32 @@
+package com.ff.base.utils;
+
+import java.security.SecureRandom;
+import java.util.HashSet;
+import java.util.Set;
+
+/**
+ * 随机发生器
+ *
+ * @author shi
+ * @date 2025/03/14
+ */
+public class RandomGeneratorUtils {
+    private static final String CHARACTERS = "abcdefghijklmnopqrstuvwxyz0123456789";
+    private static final SecureRandom RANDOM = new SecureRandom();
+
+
+    /**
+     *  生成 5-9 之间的随机长度
+     *
+     * @return {@link String }
+     */
+    public static String generateRandomAccount() {
+        int length = 5 + RANDOM.nextInt(5);
+        StringBuilder sb = new StringBuilder(length);
+        for (int i = 0; i < length; i++) {
+            sb.append(CHARACTERS.charAt(RANDOM.nextInt(CHARACTERS.length())));
+        }
+        return sb.toString();
+    }
+
+}

ff-game/src/main/java/com/ff/api/controller/ApiMemberController.java

@@ -103,7 +103,7 @@ public class ApiMemberController extends BaseController {
 
         ApiException.notNull(gameSecretKey, ErrorCode.CURRENCY_NOT_EXIST.getCode());
 
-        String gameAccount = StringUtils.addSuffix(memberCreateApiRequest.getAccount(), memberCreateApiRequest.getCurrencyCode() + tenantSecretKey.getTenantSn());
+        String gameAccount = StringUtils.addSuffix(memberService.getMemberGameAccount(), tenantSecretKey.getTenantSn());
 
 
         List<Member> members = memberService.selectMemberList(Member.builder()

ff-game/src/main/java/com/ff/member/service/IMemberService.java

@@ -27,6 +27,13 @@ public interface IMemberService
      */
      List<Member> selectMemberList(Member member);
 
+    /**
+     * 生成会员游戏账号
+     *
+     * @return {@link String }
+     */
+    String getMemberGameAccount();
+
     /**
      * 新增会员
      * 

ff-game/src/main/java/com/ff/member/service/impl/MemberServiceImpl.java

@@ -4,11 +4,13 @@ import java.util.List;
 
 import cn.hutool.core.util.IdUtil;
 import com.ff.base.utils.DateUtils;
+import com.ff.base.utils.RandomGeneratorUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import com.ff.member.mapper.MemberMapper;
 import com.ff.member.domain.Member;
 import com.ff.member.service.IMemberService;
+import org.springframework.util.ObjectUtils;
 
 /**
  * 会员Service业务层处理
@@ -46,6 +48,21 @@ public class MemberServiceImpl implements IMemberService
         return memberMapper.selectMemberList(member);
     }
 
+    /**
+     * 获取会员游戏账号
+     *
+     * @return {@link String }
+     */
+    @Override
+    public synchronized String getMemberGameAccount() {
+
+        String gameAccount = RandomGeneratorUtils.generateRandomAccount();
+        while (!ObjectUtils.isEmpty(memberMapper.selectMemberByGameAccount(gameAccount))){
+            gameAccount = RandomGeneratorUtils.generateRandomAccount();
+        }
+        return gameAccount;
+    }
+
     /**
      * 新增会员
      *