refactor(invite): 移除用户主动生成邀请码功能

- 删除 InviteCodeRespVO.java VO 类
- 移除 KeyboardUserInviteCodesService 及其实现中的 createInviteCode/getUserInviteCode 方法
- 删除 UserController 中 /inviteCode 查询接口
- 注册流程不再自动为用户创建邀请码，仅保留绑定逻辑

src/main/java/com/yolo/keyborad/controller/UserController.java

@@ -8,12 +8,9 @@ import com.yolo.keyborad.model.dto.AppleLoginReq;
 import com.yolo.keyborad.model.dto.user.*;
 import com.yolo.keyborad.model.entity.KeyboardFeedback;
 import com.yolo.keyborad.model.entity.KeyboardUser;
-import com.yolo.keyborad.model.entity.KeyboardUserInviteCodes;
-import com.yolo.keyborad.model.vo.user.InviteCodeRespVO;
 import com.yolo.keyborad.model.vo.user.KeyboardUserInfoRespVO;
 import com.yolo.keyborad.model.vo.user.KeyboardUserRespVO;
 import com.yolo.keyborad.service.IAppleService;
-import com.yolo.keyborad.service.KeyboardUserInviteCodesService;
 import com.yolo.keyborad.service.UserService;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
@@ -46,9 +43,6 @@ public class UserController {
     @Resource
     private com.yolo.keyborad.service.KeyboardFeedbackService feedbackService;
 
-    @Resource
-    private KeyboardUserInviteCodesService inviteCodesService;
-
     /**
      * 苹果登录
      *
@@ -133,15 +127,6 @@ public class UserController {
         return ResultUtils.success(feedbackService.save(feedback));
     }
 
-    @GetMapping("/inviteCode")
-    @Operation(summary = "查询邀请码", description = "查询用户自己的邀请码")
-    public BaseResponse<InviteCodeRespVO> getInviteCode() {
-        long userId = StpUtil.getLoginIdAsLong();
-        KeyboardUserInviteCodes inviteCode = inviteCodesService.getUserInviteCode(userId);
-        InviteCodeRespVO respVO = BeanUtil.copyProperties(inviteCode, InviteCodeRespVO.class);
-        return ResultUtils.success(respVO);
-    }
-
     @PostMapping("/bindInviteCode")
     @Operation(summary = "绑定邀请码", description = "用户填写邀请码进行绑定")
     public BaseResponse<Boolean> bindInviteCode(@RequestBody BindInviteCodeDTO bindInviteCodeDTO) {

src/main/java/com/yolo/keyborad/model/vo/user/InviteCodeRespVO.java

@@ -1,29 +0,0 @@
-package com.yolo.keyborad.model.vo.user;
-
-import io.swagger.v3.oas.annotations.media.Schema;
-import lombok.Data;
-
-import java.util.Date;
-
-/**
- * 邀请码响应VO
- */
-@Data
-@Schema(description = "邀请码信息")
-public class InviteCodeRespVO {
-
-    @Schema(description = "邀请码")
-    private String code;
-
-    @Schema(description = "邀请码状态：1=启用，0=停用")
-    private Short status;
-
-    @Schema(description = "已使用次数")
-    private Integer usedCount;
-
-    @Schema(description = "最大可使用次数")
-    private Integer maxUses;
-
-    @Schema(description = "过期时间")
-    private Date expiresAt;
-}

src/main/java/com/yolo/keyborad/service/KeyboardUserInviteCodesService.java

@@ -8,21 +8,6 @@ import com.baomidou.mybatisplus.extension.service.IService;
 */
 
 public interface KeyboardUserInviteCodesService extends IService<KeyboardUserInviteCodes>{
-
-    /**
-     * 获取用户的邀请码
-     * @param userId 用户ID
-     * @return 邀请码实体
-     */
-    KeyboardUserInviteCodes getUserInviteCode(Long userId);
-
-    /**
-     * 为用户创建邀请码
-     * @param userId 用户ID
-     * @return 创建的邀请码实体
-     */
-    KeyboardUserInviteCodes createInviteCode(Long userId);
-
     /**
      * 验证邀请码是否有效
      * @param code 邀请码

src/main/java/com/yolo/keyborad/service/impl/KeyboardUserInviteCodesServiceImpl.java

@@ -20,52 +20,6 @@ import com.yolo.keyborad.service.KeyboardUserInviteCodesService;
 @Service
 public class KeyboardUserInviteCodesServiceImpl extends ServiceImpl<KeyboardUserInviteCodesMapper, KeyboardUserInviteCodes> implements KeyboardUserInviteCodesService{
 
-    @Override
-    public KeyboardUserInviteCodes getUserInviteCode(Long userId) {
-        QueryWrapper<KeyboardUserInviteCodes> queryWrapper = new QueryWrapper<>();
-        queryWrapper.eq("owner_user_id", userId);
-        return this.getOne(queryWrapper);
-    }
-
-    @Override
-    public KeyboardUserInviteCodes createInviteCode(Long userId) {
-        // 生成唯一的邀请码
-        String code;
-        int maxRetries = 10;
-        int retryCount = 0;
-
-        do {
-            // 生成8位字母数字组合的邀请码
-            code = RandomUtil.randomString(8).toUpperCase();
-
-            // 检查邀请码是否已存在
-            QueryWrapper<KeyboardUserInviteCodes> queryWrapper = new QueryWrapper<>();
-            queryWrapper.eq("code", code);
-            KeyboardUserInviteCodes existingCode = this.getOne(queryWrapper);
-
-            if (existingCode == null) {
-                break;
-            }
-
-            retryCount++;
-        } while (retryCount < maxRetries);
-
-        // 创建邀请码实体
-        KeyboardUserInviteCodes inviteCode = new KeyboardUserInviteCodes();
-        inviteCode.setCode(code);
-        inviteCode.setOwnerUserId(userId);
-        inviteCode.setStatus((short) 1); // 启用状态
-        inviteCode.setCreatedAt(new Date());
-        inviteCode.setExpiresAt(null); // 永久有效
-        inviteCode.setMaxUses(null); // 不限次数
-        inviteCode.setUsedCount(0); // 初始使用次数为0
-
-        // 保存到数据库
-        this.save(inviteCode);
-
-        return inviteCode;
-    }
-
     @Override
     public KeyboardUserInviteCodes validateInviteCode(String code) {
         // 查询邀请码

src/main/java/com/yolo/keyborad/service/impl/UserServiceImpl.java

@@ -114,9 +114,6 @@ public class UserServiceImpl extends ServiceImpl<KeyboardUserMapper, KeyboardUse
         quotaTotal.setUpdatedAt(new Date());
         quotaTotalService.save(quotaTotal);
 
-        // 初始化用户邀请码
-        inviteCodesService.createInviteCode(keyboardUser.getId());
-
         log.info("User registered with Apple Sign-In, userId={}, freeQuota={}",
                 keyboardUser.getId(), appConfig.getUserRegisterProperties().getFreeTrialQuota());
 
@@ -256,9 +253,6 @@ public class UserServiceImpl extends ServiceImpl<KeyboardUserMapper, KeyboardUse
             quotaTotal.setUpdatedAt(new Date());
             quotaTotalService.save(quotaTotal);
 
-            // 初始化用户邀请码
-            inviteCodesService.createInviteCode(keyboardUser.getId());
-
             // 处理邀请码绑定
             if (userRegisterDTO.getInviteCode() != null && !userRegisterDTO.getInviteCode().trim().isEmpty()) {
                 try {