feat: 添加日志管理和敏感词过滤功能

- 新增日志管理模块：操作日志、登录日志、数据变更日志
- 新增敏感词过滤器 (sanitizer)
- 新增日志异步写入管理器
- 新增日志定时清理服务
- 优化帖子相关服务和上传服务

internal/service/user_service.go

@@ -44,8 +44,8 @@ type UserService interface {
 	// 关注相关
 	GetFollowers(ctx context.Context, userID string, page, pageSize int) ([]*model.User, int64, error)
 	GetFollowing(ctx context.Context, userID string, page, pageSize int) ([]*model.User, int64, error)
-	GetFollowingList(ctx context.Context, userID, page, pageSize string) ([]*model.User, error)
-	GetFollowersList(ctx context.Context, userID, page, pageSize string) ([]*model.User, error)
+	GetFollowingList(ctx context.Context, userID string, page, pageSize string) ([]*model.User, error)
+	GetFollowersList(ctx context.Context, userID string, page, pageSize string) ([]*model.User, error)
 	FollowUser(ctx context.Context, followerID, followeeID string) error
 	UnfollowUser(ctx context.Context, followerID, followeeID string) error
 	GetMutualFollowStatus(ctx context.Context, currentUserID string, targetUserIDs []string) (map[string][2]bool, error)
@@ -55,6 +55,9 @@ type UserService interface {
 	UnblockUser(ctx context.Context, blockerID, blockedID string) error
 	GetBlockedUsers(ctx context.Context, blockerID string, page, pageSize int) ([]*model.User, int64, error)
 	IsBlocked(ctx context.Context, blockerID, blockedID string) (bool, error)
+
+	// 日志服务设置
+	SetLogService(logService *LogService)
 }
 
 // userServiceImpl 用户服务实现
@@ -62,6 +65,7 @@ type userServiceImpl struct {
 	userRepo             *repository.UserRepository
 	systemMessageService SystemMessageService
 	emailCodeService     EmailCodeService
+	logService           *LogService
 }
 
 // NewUserService 创建用户服务
@@ -75,9 +79,15 @@ func NewUserService(
 		userRepo:             userRepo,
 		systemMessageService: systemMessageService,
 		emailCodeService:     NewEmailCodeService(emailService, cacheBackend),
+		logService:           nil,
 	}
 }
 
+// SetLogService 设置日志服务
+func (s *userServiceImpl) SetLogService(logService *LogService) {
+	s.logService = logService
+}
+
 // SendRegisterCode 发送注册验证码
 func (s *userServiceImpl) SendRegisterCode(ctx context.Context, email string) error {
 	user, err := s.userRepo.GetByEmail(email)
@@ -241,12 +251,28 @@ func (s *userServiceImpl) Register(ctx context.Context, username, email, passwor
 		return nil, err
 	}
 
+	// 记录注册日志
+	if s.logService != nil {
+		s.logService.OperationLog.RecordOperation(&model.OperationLog{
+			UserID:     user.ID,
+			UserName:   user.Username,
+			NickName:   user.Nickname,
+			Operation:  string(model.OpUserRegister),
+			Module:     "user",
+			TargetType: "user",
+			TargetID:   user.ID,
+			IP:         "",
+			Status:     "success",
+		})
+	}
+
 	return user, nil
 }
 
 // Login 用户登录
 func (s *userServiceImpl) Login(ctx context.Context, account, password string) (*model.User, error) {
 	account = strings.TrimSpace(account)
+
 	var (
 		user *model.User
 		err  error
@@ -258,18 +284,86 @@ func (s *userServiceImpl) Login(ctx context.Context, account, password string) (
 	} else {
 		user, err = s.userRepo.GetByUsername(account)
 	}
+
+	// 登录失败处理
+	loginResult := string(model.LoginResultSuccess)
+	var failReason string
+
 	if err != nil || user == nil {
+		loginResult = string(model.LoginResultFail)
+		failReason = string(model.FailReasonUserNotFound)
+
+		// 记录失败登录日志
+		if s.logService != nil {
+			s.logService.LoginLog.RecordLogin(&model.LoginLog{
+				UserName:   account,
+				Event:      string(model.LoginEventFail),
+				IP:         "",
+				UserAgent:  "",
+				Result:     loginResult,
+				FailReason: failReason,
+			})
+		}
+
 		return nil, ErrInvalidCredentials
 	}
 
 	if !utils.CheckPasswordHash(password, user.PasswordHash) {
+		loginResult = string(model.LoginResultFail)
+		failReason = string(model.FailReasonWrongPassword)
+
+		// 记录失败登录日志
+		if s.logService != nil {
+			s.logService.LoginLog.RecordLogin(&model.LoginLog{
+				UserID:     user.ID,
+				UserName:   user.Username,
+				NickName:   user.Nickname,
+				Event:      string(model.LoginEventFail),
+				IP:         "",
+				UserAgent:  "",
+				Result:     loginResult,
+				FailReason: failReason,
+			})
+		}
+
 		return nil, ErrInvalidCredentials
 	}
 
 	if user.Status != model.UserStatusActive {
+		loginResult = string(model.LoginResultFail)
+		failReason = string(model.FailReasonAccountBanned)
+
+		// 记录失败登录日志
+		if s.logService != nil {
+			s.logService.LoginLog.RecordLogin(&model.LoginLog{
+				UserID:     user.ID,
+				UserName:   user.Username,
+				NickName:   user.Nickname,
+				Event:      string(model.LoginEventFail),
+				IP:         "",
+				UserAgent:  "",
+				Result:     loginResult,
+				FailReason: failReason,
+			})
+		}
+
 		return nil, ErrUserBanned
 	}
 
+	// 记录成功登录日志
+	if s.logService != nil {
+		s.logService.LoginLog.RecordLogin(&model.LoginLog{
+			UserID:    user.ID,
+			UserName:  user.Username,
+			NickName:  user.Nickname,
+			LoginType: string(model.LoginTypePassword),
+			Event:     string(model.LoginEventLogin),
+			IP:        "",
+			UserAgent: "",
+			Result:    string(model.LoginResultSuccess),
+		})
+	}
+
 	return user, nil
 }
 
@@ -337,7 +431,27 @@ func (s *userServiceImpl) GetUserByIDWithMutualFollowStatus(ctx context.Context,
 
 // UpdateUser 更新用户
 func (s *userServiceImpl) UpdateUser(ctx context.Context, user *model.User) error {
-	return s.userRepo.Update(user)
+	err := s.userRepo.Update(user)
+	if err != nil {
+		return err
+	}
+
+	// 记录数据变更日志
+	if s.logService != nil {
+		s.logService.DataChangeLog.RecordDataChange(&model.DataChangeLog{
+			UserID:       user.ID,
+			ChangeType:   string(model.ChangeProfile),
+			TargetType:   "user",
+			TargetID:     user.ID,
+			FieldName:    "profile",
+			OldValue:     "",
+			NewValue:     fmt.Sprintf("昵称:%s", user.Nickname),
+			OperatorType: string(model.OperatorTypeSelf),
+			Reason:       "用户修改个人资料",
+		})
+	}
+
+	return nil
 }
 
 // GetFollowers 获取粉丝
@@ -542,7 +656,26 @@ func (s *userServiceImpl) ChangePassword(ctx context.Context, userID, oldPasswor
 
 	// 更新密码
 	user.PasswordHash = hashedPassword
-	return s.userRepo.Update(user)
+	if err := s.userRepo.Update(user); err != nil {
+		return err
+	}
+
+	// 记录数据变更日志
+	if s.logService != nil {
+		s.logService.DataChangeLog.RecordDataChange(&model.DataChangeLog{
+			UserID:       userID,
+			ChangeType:   string(model.ChangePassword),
+			TargetType:   "user",
+			TargetID:     userID,
+			FieldName:    "password",
+			OldValue:     "***",
+			NewValue:     "***",
+			OperatorType: string(model.OperatorTypeSelf),
+			Reason:       "用户主动修改密码",
+		})
+	}
+
+	return nil
 }
 
 // ResetPasswordByEmail 通过邮箱重置密码