Merge pull request #333 from whoismonay/main

fix: 普通用户接口移除管理员敏感字段透传

backend/internal/handler/admin/group_handler.go

@@ -94,9 +94,9 @@ func (h *GroupHandler) List(c *gin.Context) {
 		return
 	}
 
-	outGroups := make([]dto.Group, 0, len(groups))
+	outGroups := make([]dto.AdminGroup, 0, len(groups))
 	for i := range groups {
-		outGroups = append(outGroups, *dto.GroupFromService(&groups[i]))
+		outGroups = append(outGroups, *dto.GroupFromServiceAdmin(&groups[i]))
 	}
 	response.Paginated(c, outGroups, total, page, pageSize)
 }
@@ -120,9 +120,9 @@ func (h *GroupHandler) GetAll(c *gin.Context) {
 		return
 	}
 
-	outGroups := make([]dto.Group, 0, len(groups))
+	outGroups := make([]dto.AdminGroup, 0, len(groups))
 	for i := range groups {
-		outGroups = append(outGroups, *dto.GroupFromService(&groups[i]))
+		outGroups = append(outGroups, *dto.GroupFromServiceAdmin(&groups[i]))
 	}
 	response.Success(c, outGroups)
 }
@@ -142,7 +142,7 @@ func (h *GroupHandler) GetByID(c *gin.Context) {
 		return
 	}
 
-	response.Success(c, dto.GroupFromService(group))
+	response.Success(c, dto.GroupFromServiceAdmin(group))
 }
 
 // Create handles creating a new group
@@ -177,7 +177,7 @@ func (h *GroupHandler) Create(c *gin.Context) {
 		return
 	}
 
-	response.Success(c, dto.GroupFromService(group))
+	response.Success(c, dto.GroupFromServiceAdmin(group))
 }
 
 // Update handles updating a group
@@ -219,7 +219,7 @@ func (h *GroupHandler) Update(c *gin.Context) {
 		return
 	}
 
-	response.Success(c, dto.GroupFromService(group))
+	response.Success(c, dto.GroupFromServiceAdmin(group))
 }
 
 // Delete handles deleting a group

backend/internal/handler/admin/redeem_handler.go

@@ -54,9 +54,9 @@ func (h *RedeemHandler) List(c *gin.Context) {
 		return
 	}
 
-	out := make([]dto.RedeemCode, 0, len(codes))
+	out := make([]dto.AdminRedeemCode, 0, len(codes))
 	for i := range codes {
-		out = append(out, *dto.RedeemCodeFromService(&codes[i]))
+		out = append(out, *dto.RedeemCodeFromServiceAdmin(&codes[i]))
 	}
 	response.Paginated(c, out, total, page, pageSize)
 }
@@ -76,7 +76,7 @@ func (h *RedeemHandler) GetByID(c *gin.Context) {
 		return
 	}
 
-	response.Success(c, dto.RedeemCodeFromService(code))
+	response.Success(c, dto.RedeemCodeFromServiceAdmin(code))
 }
 
 // Generate handles generating new redeem codes
@@ -100,9 +100,9 @@ func (h *RedeemHandler) Generate(c *gin.Context) {
 		return
 	}
 
-	out := make([]dto.RedeemCode, 0, len(codes))
+	out := make([]dto.AdminRedeemCode, 0, len(codes))
 	for i := range codes {
-		out = append(out, *dto.RedeemCodeFromService(&codes[i]))
+		out = append(out, *dto.RedeemCodeFromServiceAdmin(&codes[i]))
 	}
 	response.Success(c, out)
 }
@@ -163,7 +163,7 @@ func (h *RedeemHandler) Expire(c *gin.Context) {
 		return
 	}
 
-	response.Success(c, dto.RedeemCodeFromService(code))
+	response.Success(c, dto.RedeemCodeFromServiceAdmin(code))
 }
 
 // GetStats handles getting redeem code statistics

backend/internal/handler/admin/subscription_handler.go

@@ -83,9 +83,9 @@ func (h *SubscriptionHandler) List(c *gin.Context) {
 		return
 	}
 
-	out := make([]dto.UserSubscription, 0, len(subscriptions))
+	out := make([]dto.AdminUserSubscription, 0, len(subscriptions))
 	for i := range subscriptions {
-		out = append(out, *dto.UserSubscriptionFromService(&subscriptions[i]))
+		out = append(out, *dto.UserSubscriptionFromServiceAdmin(&subscriptions[i]))
 	}
 	response.PaginatedWithResult(c, out, toResponsePagination(pagination))
 }
@@ -105,7 +105,7 @@ func (h *SubscriptionHandler) GetByID(c *gin.Context) {
 		return
 	}
 
-	response.Success(c, dto.UserSubscriptionFromService(subscription))
+	response.Success(c, dto.UserSubscriptionFromServiceAdmin(subscription))
 }
 
 // GetProgress handles getting subscription usage progress
@@ -150,7 +150,7 @@ func (h *SubscriptionHandler) Assign(c *gin.Context) {
 		return
 	}
 
-	response.Success(c, dto.UserSubscriptionFromService(subscription))
+	response.Success(c, dto.UserSubscriptionFromServiceAdmin(subscription))
 }
 
 // BulkAssign handles bulk assigning subscriptions to multiple users
@@ -201,7 +201,7 @@ func (h *SubscriptionHandler) Extend(c *gin.Context) {
 		return
 	}
 
-	response.Success(c, dto.UserSubscriptionFromService(subscription))
+	response.Success(c, dto.UserSubscriptionFromServiceAdmin(subscription))
 }
 
 // Revoke handles revoking a subscription
@@ -239,9 +239,9 @@ func (h *SubscriptionHandler) ListByGroup(c *gin.Context) {
 		return
 	}
 
-	out := make([]dto.UserSubscription, 0, len(subscriptions))
+	out := make([]dto.AdminUserSubscription, 0, len(subscriptions))
 	for i := range subscriptions {
-		out = append(out, *dto.UserSubscriptionFromService(&subscriptions[i]))
+		out = append(out, *dto.UserSubscriptionFromServiceAdmin(&subscriptions[i]))
 	}
 	response.PaginatedWithResult(c, out, toResponsePagination(pagination))
 }
@@ -261,9 +261,9 @@ func (h *SubscriptionHandler) ListByUser(c *gin.Context) {
 		return
 	}
 
-	out := make([]dto.UserSubscription, 0, len(subscriptions))
+	out := make([]dto.AdminUserSubscription, 0, len(subscriptions))
 	for i := range subscriptions {
-		out = append(out, *dto.UserSubscriptionFromService(&subscriptions[i]))
+		out = append(out, *dto.UserSubscriptionFromServiceAdmin(&subscriptions[i]))
 	}
 	response.Success(c, out)
 }

backend/internal/handler/admin/usage_handler.go

@@ -163,7 +163,7 @@ func (h *UsageHandler) List(c *gin.Context) {
 		return
 	}
 
-	out := make([]dto.UsageLog, 0, len(records))
+	out := make([]dto.AdminUsageLog, 0, len(records))
 	for i := range records {
 		out = append(out, *dto.UsageLogFromServiceAdmin(&records[i]))
 	}

backend/internal/handler/admin/user_handler.go

@@ -84,9 +84,9 @@ func (h *UserHandler) List(c *gin.Context) {
 		return
 	}
 
-	out := make([]dto.User, 0, len(users))
+	out := make([]dto.AdminUser, 0, len(users))
 	for i := range users {
-		out = append(out, *dto.UserFromService(&users[i]))
+		out = append(out, *dto.UserFromServiceAdmin(&users[i]))
 	}
 	response.Paginated(c, out, total, page, pageSize)
 }
@@ -129,7 +129,7 @@ func (h *UserHandler) GetByID(c *gin.Context) {
 		return
 	}
 
-	response.Success(c, dto.UserFromService(user))
+	response.Success(c, dto.UserFromServiceAdmin(user))
 }
 
 // Create handles creating a new user
@@ -155,7 +155,7 @@ func (h *UserHandler) Create(c *gin.Context) {
 		return
 	}
 
-	response.Success(c, dto.UserFromService(user))
+	response.Success(c, dto.UserFromServiceAdmin(user))
 }
 
 // Update handles updating a user
@@ -189,7 +189,7 @@ func (h *UserHandler) Update(c *gin.Context) {
 		return
 	}
 
-	response.Success(c, dto.UserFromService(user))
+	response.Success(c, dto.UserFromServiceAdmin(user))
 }
 
 // Delete handles deleting a user
@@ -231,7 +231,7 @@ func (h *UserHandler) UpdateBalance(c *gin.Context) {
 		return
 	}
 
-	response.Success(c, dto.UserFromService(user))
+	response.Success(c, dto.UserFromServiceAdmin(user))
 }
 
 // GetUserAPIKeys handles getting user's API keys

backend/internal/handler/dto/mappers.go

@@ -15,7 +15,6 @@ func UserFromServiceShallow(u *service.User) *User {
 		ID:            u.ID,
 		Email:         u.Email,
 		Username:      u.Username,
-		Notes:         u.Notes,
 		Role:          u.Role,
 		Balance:       u.Balance,
 		Concurrency:   u.Concurrency,
@@ -48,6 +47,22 @@ func UserFromService(u *service.User) *User {
 	return out
 }
 
+// UserFromServiceAdmin converts a service User to DTO for admin users.
+// It includes notes - user-facing endpoints must not use this.
+func UserFromServiceAdmin(u *service.User) *AdminUser {
+	if u == nil {
+		return nil
+	}
+	base := UserFromService(u)
+	if base == nil {
+		return nil
+	}
+	return &AdminUser{
+		User:  *base,
+		Notes: u.Notes,
+	}
+}
+
 func APIKeyFromService(k *service.APIKey) *APIKey {
 	if k == nil {
 		return nil
@@ -72,36 +87,29 @@ func GroupFromServiceShallow(g *service.Group) *Group {
 	if g == nil {
 		return nil
 	}
-	return &Group{
+	out := groupFromServiceBase(g)
-		ID:                  g.ID,
+	return &out
-		Name:                g.Name,
-		Description:         g.Description,
-		Platform:            g.Platform,
-		RateMultiplier:      g.RateMultiplier,
-		IsExclusive:         g.IsExclusive,
-		Status:              g.Status,
-		SubscriptionType:    g.SubscriptionType,
-		DailyLimitUSD:       g.DailyLimitUSD,
-		WeeklyLimitUSD:      g.WeeklyLimitUSD,
-		MonthlyLimitUSD:     g.MonthlyLimitUSD,
-		ImagePrice1K:        g.ImagePrice1K,
-		ImagePrice2K:        g.ImagePrice2K,
-		ImagePrice4K:        g.ImagePrice4K,
-		ClaudeCodeOnly:      g.ClaudeCodeOnly,
-		FallbackGroupID:     g.FallbackGroupID,
-		ModelRouting:        g.ModelRouting,
-		ModelRoutingEnabled: g.ModelRoutingEnabled,
-		CreatedAt:           g.CreatedAt,
-		UpdatedAt:           g.UpdatedAt,
-		AccountCount:        g.AccountCount,
-	}
 }
 
 func GroupFromService(g *service.Group) *Group {
 	if g == nil {
 		return nil
 	}
-	out := GroupFromServiceShallow(g)
+	return GroupFromServiceShallow(g)
+}
+
+// GroupFromServiceAdmin converts a service Group to DTO for admin users.
+// It includes internal fields like model_routing and account_count.
+func GroupFromServiceAdmin(g *service.Group) *AdminGroup {
+	if g == nil {
+		return nil
+	}
+	out := &AdminGroup{
+		Group:               groupFromServiceBase(g),
+		ModelRouting:        g.ModelRouting,
+		ModelRoutingEnabled: g.ModelRoutingEnabled,
+		AccountCount:        g.AccountCount,
+	}
 	if len(g.AccountGroups) > 0 {
 		out.AccountGroups = make([]AccountGroup, 0, len(g.AccountGroups))
 		for i := range g.AccountGroups {
@@ -112,6 +120,29 @@ func GroupFromService(g *service.Group) *Group {
 	return out
 }
 
+func groupFromServiceBase(g *service.Group) Group {
+	return Group{
+		ID:               g.ID,
+		Name:             g.Name,
+		Description:      g.Description,
+		Platform:         g.Platform,
+		RateMultiplier:   g.RateMultiplier,
+		IsExclusive:      g.IsExclusive,
+		Status:           g.Status,
+		SubscriptionType: g.SubscriptionType,
+		DailyLimitUSD:    g.DailyLimitUSD,
+		WeeklyLimitUSD:   g.WeeklyLimitUSD,
+		MonthlyLimitUSD:  g.MonthlyLimitUSD,
+		ImagePrice1K:     g.ImagePrice1K,
+		ImagePrice2K:     g.ImagePrice2K,
+		ImagePrice4K:     g.ImagePrice4K,
+		ClaudeCodeOnly:   g.ClaudeCodeOnly,
+		FallbackGroupID:  g.FallbackGroupID,
+		CreatedAt:        g.CreatedAt,
+		UpdatedAt:        g.UpdatedAt,
+	}
+}
+
 func AccountFromServiceShallow(a *service.Account) *Account {
 	if a == nil {
 		return nil
@@ -273,7 +304,24 @@ func RedeemCodeFromService(rc *service.RedeemCode) *RedeemCode {
 	if rc == nil {
 		return nil
 	}
-	return &RedeemCode{
+	out := redeemCodeFromServiceBase(rc)
+	return &out
+}
+
+// RedeemCodeFromServiceAdmin converts a service RedeemCode to DTO for admin users.
+// It includes notes - user-facing endpoints must not use this.
+func RedeemCodeFromServiceAdmin(rc *service.RedeemCode) *AdminRedeemCode {
+	if rc == nil {
+		return nil
+	}
+	return &AdminRedeemCode{
+		RedeemCode: redeemCodeFromServiceBase(rc),
+		Notes:      rc.Notes,
+	}
+}
+
+func redeemCodeFromServiceBase(rc *service.RedeemCode) RedeemCode {
+	return RedeemCode{
 		ID:           rc.ID,
 		Code:         rc.Code,
 		Type:         rc.Type,
@@ -281,7 +329,6 @@ func RedeemCodeFromService(rc *service.RedeemCode) *RedeemCode {
 		Status:       rc.Status,
 		UsedBy:       rc.UsedBy,
 		UsedAt:       rc.UsedAt,
-		Notes:        rc.Notes,
 		CreatedAt:    rc.CreatedAt,
 		GroupID:      rc.GroupID,
 		ValidityDays: rc.ValidityDays,
@@ -302,14 +349,9 @@ func AccountSummaryFromService(a *service.Account) *AccountSummary {
 	}
 }
 
-// usageLogFromServiceBase is a helper that converts service UsageLog to DTO.
+func usageLogFromServiceUser(l *service.UsageLog) UsageLog {
-// The account parameter allows caller to control what Account info is included.
+	// 普通用户 DTO：严禁包含管理员字段（例如 account_rate_multiplier、ip_address、account）。
-// The includeIPAddress parameter controls whether to include the IP address (admin-only).
+	return UsageLog{
-func usageLogFromServiceBase(l *service.UsageLog, account *AccountSummary, includeIPAddress bool) *UsageLog {
-	if l == nil {
-		return nil
-	}
-	result := &UsageLog{
 		ID:                    l.ID,
 		UserID:                l.UserID,
 		APIKeyID:              l.APIKeyID,
@@ -331,7 +373,6 @@ func usageLogFromServiceBase(l *service.UsageLog, account *AccountSummary, inclu
 		TotalCost:             l.TotalCost,
 		ActualCost:            l.ActualCost,
 		RateMultiplier:        l.RateMultiplier,
-		AccountRateMultiplier: l.AccountRateMultiplier,
 		BillingType:           l.BillingType,
 		Stream:                l.Stream,
 		DurationMs:            l.DurationMs,
@@ -342,30 +383,33 @@ func usageLogFromServiceBase(l *service.UsageLog, account *AccountSummary, inclu
 		CreatedAt:             l.CreatedAt,
 		User:                  UserFromServiceShallow(l.User),
 		APIKey:                APIKeyFromService(l.APIKey),
-		Account:               account,
 		Group:                 GroupFromServiceShallow(l.Group),
 		Subscription:          UserSubscriptionFromService(l.Subscription),
 	}
-	// IP 地址仅对管理员可见
-	if includeIPAddress {
-		result.IPAddress = l.IPAddress
-	}
-	return result
 }
 
 // UsageLogFromService converts a service UsageLog to DTO for regular users.
 // It excludes Account details and IP address - users should not see these.
 func UsageLogFromService(l *service.UsageLog) *UsageLog {
-	return usageLogFromServiceBase(l, nil, false)
+	if l == nil {
+		return nil
+	}
+	u := usageLogFromServiceUser(l)
+	return &u
 }
 
 // UsageLogFromServiceAdmin converts a service UsageLog to DTO for admin users.
 // It includes minimal Account info (ID, Name only) and IP address.
-func UsageLogFromServiceAdmin(l *service.UsageLog) *UsageLog {
+func UsageLogFromServiceAdmin(l *service.UsageLog) *AdminUsageLog {
 	if l == nil {
 		return nil
 	}
-	return usageLogFromServiceBase(l, AccountSummaryFromService(l.Account), true)
+	return &AdminUsageLog{
+		UsageLog:              usageLogFromServiceUser(l),
+		AccountRateMultiplier: l.AccountRateMultiplier,
+		IPAddress:             l.IPAddress,
+		Account:               AccountSummaryFromService(l.Account),
+	}
 }
 
 func UsageCleanupTaskFromService(task *service.UsageCleanupTask) *UsageCleanupTask {
@@ -414,7 +458,27 @@ func UserSubscriptionFromService(sub *service.UserSubscription) *UserSubscriptio
 	if sub == nil {
 		return nil
 	}
-	return &UserSubscription{
+	out := userSubscriptionFromServiceBase(sub)
+	return &out
+}
+
+// UserSubscriptionFromServiceAdmin converts a service UserSubscription to DTO for admin users.
+// It includes assignment metadata and notes.
+func UserSubscriptionFromServiceAdmin(sub *service.UserSubscription) *AdminUserSubscription {
+	if sub == nil {
+		return nil
+	}
+	return &AdminUserSubscription{
+		UserSubscription: userSubscriptionFromServiceBase(sub),
+		AssignedBy:       sub.AssignedBy,
+		AssignedAt:       sub.AssignedAt,
+		Notes:            sub.Notes,
+		AssignedByUser:   UserFromServiceShallow(sub.AssignedByUser),
+	}
+}
+
+func userSubscriptionFromServiceBase(sub *service.UserSubscription) UserSubscription {
+	return UserSubscription{
 		ID:                 sub.ID,
 		UserID:             sub.UserID,
 		GroupID:            sub.GroupID,
@@ -427,14 +491,10 @@ func UserSubscriptionFromService(sub *service.UserSubscription) *UserSubscriptio
 		DailyUsageUSD:      sub.DailyUsageUSD,
 		WeeklyUsageUSD:     sub.WeeklyUsageUSD,
 		MonthlyUsageUSD:    sub.MonthlyUsageUSD,
-		AssignedBy:         sub.AssignedBy,
-		AssignedAt:         sub.AssignedAt,
-		Notes:              sub.Notes,
 		CreatedAt:          sub.CreatedAt,
 		UpdatedAt:          sub.UpdatedAt,
 		User:               UserFromServiceShallow(sub.User),
 		Group:              GroupFromServiceShallow(sub.Group),
-		AssignedByUser:     UserFromServiceShallow(sub.AssignedByUser),
 	}
 }
 
@@ -442,9 +502,9 @@ func BulkAssignResultFromService(r *service.BulkAssignResult) *BulkAssignResult
 	if r == nil {
 		return nil
 	}
-	subs := make([]UserSubscription, 0, len(r.Subscriptions))
+	subs := make([]AdminUserSubscription, 0, len(r.Subscriptions))
 	for i := range r.Subscriptions {
-		subs = append(subs, *UserSubscriptionFromService(&r.Subscriptions[i]))
+		subs = append(subs, *UserSubscriptionFromServiceAdmin(&r.Subscriptions[i]))
 	}
 	return &BulkAssignResult{
 		SuccessCount:  r.SuccessCount,

backend/internal/handler/dto/types.go

@@ -6,7 +6,6 @@ type User struct {
 	ID            int64     `json:"id"`
 	Email         string    `json:"email"`
 	Username      string    `json:"username"`
-	Notes         string    `json:"notes"`
 	Role          string    `json:"role"`
 	Balance       float64   `json:"balance"`
 	Concurrency   int       `json:"concurrency"`
@@ -19,6 +18,14 @@ type User struct {
 	Subscriptions []UserSubscription `json:"subscriptions,omitempty"`
 }
 
+// AdminUser 是管理员接口使用的 user DTO（包含敏感/内部字段）。
+// 注意：普通用户接口不得返回 notes 等管理员备注信息。
+type AdminUser struct {
+	User
+
+	Notes string `json:"notes"`
+}
+
 type APIKey struct {
 	ID          int64     `json:"id"`
 	UserID      int64     `json:"user_id"`
@@ -58,13 +65,19 @@ type Group struct {
 	ClaudeCodeOnly  bool   `json:"claude_code_only"`
 	FallbackGroupID *int64 `json:"fallback_group_id"`
 
+	CreatedAt time.Time `json:"created_at"`
+	UpdatedAt time.Time `json:"updated_at"`
+}
+
+// AdminGroup 是管理员接口使用的 group DTO（包含敏感/内部字段）。
+// 注意：普通用户接口不得返回 model_routing/account_count/account_groups 等内部信息。
+type AdminGroup struct {
+	Group
+
 	// 模型路由配置（仅 anthropic 平台使用）
 	ModelRouting        map[string][]int64 `json:"model_routing"`
 	ModelRoutingEnabled bool               `json:"model_routing_enabled"`
 
-	CreatedAt time.Time `json:"created_at"`
-	UpdatedAt time.Time `json:"updated_at"`
-
 	AccountGroups []AccountGroup `json:"account_groups,omitempty"`
 	AccountCount  int64          `json:"account_count,omitempty"`
 }
@@ -180,7 +193,6 @@ type RedeemCode struct {
 	Status    string     `json:"status"`
 	UsedBy    *int64     `json:"used_by"`
 	UsedAt    *time.Time `json:"used_at"`
-	Notes     string     `json:"notes"`
 	CreatedAt time.Time  `json:"created_at"`
 
 	GroupID      *int64 `json:"group_id"`
@@ -190,6 +202,15 @@ type RedeemCode struct {
 	Group *Group `json:"group,omitempty"`
 }
 
+// AdminRedeemCode 是管理员接口使用的 redeem code DTO（包含 notes 等字段）。
+// 注意：普通用户接口不得返回 notes 等内部信息。
+type AdminRedeemCode struct {
+	RedeemCode
+
+	Notes string `json:"notes"`
+}
+
+// UsageLog 是普通用户接口使用的 usage log DTO（不包含管理员字段）。
 type UsageLog struct {
 	ID        int64  `json:"id"`
 	UserID    int64  `json:"user_id"`
@@ -209,14 +230,13 @@ type UsageLog struct {
 	CacheCreation5mTokens int `json:"cache_creation_5m_tokens"`
 	CacheCreation1hTokens int `json:"cache_creation_1h_tokens"`
 
-	InputCost             float64  `json:"input_cost"`
+	InputCost         float64 `json:"input_cost"`
-	OutputCost            float64  `json:"output_cost"`
+	OutputCost        float64 `json:"output_cost"`
-	CacheCreationCost     float64  `json:"cache_creation_cost"`
+	CacheCreationCost float64 `json:"cache_creation_cost"`
-	CacheReadCost         float64  `json:"cache_read_cost"`
+	CacheReadCost     float64 `json:"cache_read_cost"`
-	TotalCost             float64  `json:"total_cost"`
+	TotalCost         float64 `json:"total_cost"`
-	ActualCost            float64  `json:"actual_cost"`
+	ActualCost        float64 `json:"actual_cost"`
-	RateMultiplier        float64  `json:"rate_multiplier"`
+	RateMultiplier    float64 `json:"rate_multiplier"`
-	AccountRateMultiplier *float64 `json:"account_rate_multiplier"`
 
 	BillingType  int8 `json:"billing_type"`
 	Stream       bool `json:"stream"`
@@ -230,18 +250,28 @@ type UsageLog struct {
 	// User-Agent
 	UserAgent *string `json:"user_agent"`
 
-	// IP 地址（仅管理员可见）
-	IPAddress *string `json:"ip_address,omitempty"`
-
 	CreatedAt time.Time `json:"created_at"`
 
 	User         *User             `json:"user,omitempty"`
 	APIKey       *APIKey           `json:"api_key,omitempty"`
-	Account      *AccountSummary   `json:"account,omitempty"` // Use minimal AccountSummary to prevent data leakage
 	Group        *Group            `json:"group,omitempty"`
 	Subscription *UserSubscription `json:"subscription,omitempty"`
 }
 
+// AdminUsageLog 是管理员接口使用的 usage log DTO（包含管理员字段）。
+type AdminUsageLog struct {
+	UsageLog
+
+	// AccountRateMultiplier 账号计费倍率快照（nil 表示按 1.0 处理）
+	AccountRateMultiplier *float64 `json:"account_rate_multiplier"`
+
+	// IPAddress 用户请求 IP（仅管理员可见）
+	IPAddress *string `json:"ip_address,omitempty"`
+
+	// Account 最小账号信息（避免泄露敏感字段）
+	Account *AccountSummary `json:"account,omitempty"`
+}
+
 type UsageCleanupFilters struct {
 	StartTime   time.Time `json:"start_time"`
 	EndTime     time.Time `json:"end_time"`
@@ -300,23 +330,30 @@ type UserSubscription struct {
 	WeeklyUsageUSD  float64 `json:"weekly_usage_usd"`
 	MonthlyUsageUSD float64 `json:"monthly_usage_usd"`
 
+	CreatedAt time.Time `json:"created_at"`
+	UpdatedAt time.Time `json:"updated_at"`
+
+	User  *User  `json:"user,omitempty"`
+	Group *Group `json:"group,omitempty"`
+}
+
+// AdminUserSubscription 是管理员接口使用的订阅 DTO（包含分配信息/备注等字段）。
+// 注意：普通用户接口不得返回 assigned_by/assigned_at/notes/assigned_by_user 等管理员字段。
+type AdminUserSubscription struct {
+	UserSubscription
+
 	AssignedBy *int64    `json:"assigned_by"`
 	AssignedAt time.Time `json:"assigned_at"`
 	Notes      string    `json:"notes"`
 
-	CreatedAt time.Time `json:"created_at"`
+	AssignedByUser *User `json:"assigned_by_user,omitempty"`
-	UpdatedAt time.Time `json:"updated_at"`
-
-	User           *User  `json:"user,omitempty"`
-	Group          *Group `json:"group,omitempty"`
-	AssignedByUser *User  `json:"assigned_by_user,omitempty"`
 }
 
 type BulkAssignResult struct {
-	SuccessCount  int                `json:"success_count"`
+	SuccessCount  int                     `json:"success_count"`
-	FailedCount   int                `json:"failed_count"`
+	FailedCount   int                     `json:"failed_count"`
-	Subscriptions []UserSubscription `json:"subscriptions"`
+	Subscriptions []AdminUserSubscription `json:"subscriptions"`
-	Errors        []string           `json:"errors"`
+	Errors        []string                `json:"errors"`
 }
 
 // PromoCode 注册优惠码

backend/internal/handler/user_handler.go

@@ -47,9 +47,6 @@ func (h *UserHandler) GetProfile(c *gin.Context) {
 		return
 	}
 
-	// 清空notes字段，普通用户不应看到备注
-	userData.Notes = ""
-
 	response.Success(c, dto.UserFromService(userData))
 }
 
@@ -105,8 +102,5 @@ func (h *UserHandler) UpdateProfile(c *gin.Context) {
 		return
 	}
 
-	// 清空notes字段，普通用户不应看到备注
-	updatedUser.Notes = ""
-
 	response.Success(c, dto.UserFromService(updatedUser))
 }

backend/internal/server/api_contract_test.go

@@ -51,7 +51,6 @@ func TestAPIContracts(t *testing.T) {
 					"id": 1,
 					"email": "alice@example.com",
 					"username": "alice",
-					"notes": "hello",
 					"role": "user",
 					"balance": 12.5,
 					"concurrency": 5,
@@ -131,6 +130,153 @@ func TestAPIContracts(t *testing.T) {
 				}
 			}`,
 		},
+		{
+			name: "GET /api/v1/groups/available",
+			setup: func(t *testing.T, deps *contractDeps) {
+				t.Helper()
+				// 普通用户可见的分组列表不应包含内部字段（如 model_routing/account_count）。
+				deps.groupRepo.SetActive([]service.Group{
+					{
+						ID:                  10,
+						Name:                "Group One",
+						Description:         "desc",
+						Platform:            service.PlatformAnthropic,
+						RateMultiplier:      1.5,
+						IsExclusive:         false,
+						Status:              service.StatusActive,
+						SubscriptionType:    service.SubscriptionTypeStandard,
+						ModelRoutingEnabled: true,
+						ModelRouting: map[string][]int64{
+							"claude-3-*": []int64{101, 102},
+						},
+						AccountCount: 2,
+						CreatedAt:    deps.now,
+						UpdatedAt:    deps.now,
+					},
+				})
+				deps.userSubRepo.SetActiveByUserID(1, nil)
+			},
+			method:     http.MethodGet,
+			path:       "/api/v1/groups/available",
+			wantStatus: http.StatusOK,
+			wantJSON: `{
+				"code": 0,
+				"message": "success",
+				"data": [
+					{
+						"id": 10,
+						"name": "Group One",
+						"description": "desc",
+						"platform": "anthropic",
+						"rate_multiplier": 1.5,
+						"is_exclusive": false,
+						"status": "active",
+						"subscription_type": "standard",
+						"daily_limit_usd": null,
+						"weekly_limit_usd": null,
+						"monthly_limit_usd": null,
+						"image_price_1k": null,
+						"image_price_2k": null,
+						"image_price_4k": null,
+						"claude_code_only": false,
+						"fallback_group_id": null,
+						"created_at": "2025-01-02T03:04:05Z",
+						"updated_at": "2025-01-02T03:04:05Z"
+					}
+				]
+			}`,
+		},
+		{
+			name: "GET /api/v1/subscriptions",
+			setup: func(t *testing.T, deps *contractDeps) {
+				t.Helper()
+				// 普通用户订阅接口不应包含 assigned_* / notes 等管理员字段。
+				deps.userSubRepo.SetByUserID(1, []service.UserSubscription{
+					{
+						ID:           501,
+						UserID:       1,
+						GroupID:      10,
+						StartsAt:     deps.now,
+						ExpiresAt:    deps.now.Add(24 * time.Hour),
+						Status:       service.SubscriptionStatusActive,
+						DailyUsageUSD:   1.23,
+						WeeklyUsageUSD:  2.34,
+						MonthlyUsageUSD: 3.45,
+						AssignedBy:    ptr(int64(999)),
+						AssignedAt:    deps.now,
+						Notes:         "admin-note",
+						CreatedAt:     deps.now,
+						UpdatedAt:     deps.now,
+					},
+				})
+			},
+			method:     http.MethodGet,
+			path:       "/api/v1/subscriptions",
+			wantStatus: http.StatusOK,
+			wantJSON: `{
+				"code": 0,
+				"message": "success",
+				"data": [
+					{
+						"id": 501,
+						"user_id": 1,
+						"group_id": 10,
+						"starts_at": "2025-01-02T03:04:05Z",
+						"expires_at": "2025-01-03T03:04:05Z",
+						"status": "active",
+						"daily_window_start": null,
+						"weekly_window_start": null,
+						"monthly_window_start": null,
+						"daily_usage_usd": 1.23,
+						"weekly_usage_usd": 2.34,
+						"monthly_usage_usd": 3.45,
+						"created_at": "2025-01-02T03:04:05Z",
+						"updated_at": "2025-01-02T03:04:05Z"
+					}
+				]
+			}`,
+		},
+		{
+			name: "GET /api/v1/redeem/history",
+			setup: func(t *testing.T, deps *contractDeps) {
+				t.Helper()
+				// 普通用户兑换历史不应包含 notes 等内部字段。
+				deps.redeemRepo.SetByUser(1, []service.RedeemCode{
+					{
+						ID:        900,
+						Code:      "CODE-123",
+						Type:      service.RedeemTypeBalance,
+						Value:     1.25,
+						Status:    service.StatusUsed,
+						UsedBy:    ptr(int64(1)),
+						UsedAt:    ptr(deps.now),
+						Notes:     "internal-note",
+						CreatedAt: deps.now,
+					},
+				})
+			},
+			method:     http.MethodGet,
+			path:       "/api/v1/redeem/history",
+			wantStatus: http.StatusOK,
+			wantJSON: `{
+				"code": 0,
+				"message": "success",
+				"data": [
+					{
+						"id": 900,
+						"code": "CODE-123",
+						"type": "balance",
+						"value": 1.25,
+						"status": "used",
+						"used_by": 1,
+						"used_at": "2025-01-02T03:04:05Z",
+						"created_at": "2025-01-02T03:04:05Z",
+						"group_id": null,
+						"validity_days": 0
+					}
+				]
+			}`,
+		},
 		{
 			name: "GET /api/v1/usage/stats",
 			setup: func(t *testing.T, deps *contractDeps) {
@@ -190,24 +336,25 @@ func TestAPIContracts(t *testing.T) {
 				t.Helper()
 				deps.usageRepo.SetUserLogs(1, []service.UsageLog{
 					{
-						ID:                  1,
+						ID:                    1,
-						UserID:              1,
+						UserID:                1,
-						APIKeyID:            100,
+						APIKeyID:              100,
-						AccountID:           200,
+						AccountID:             200,
-						RequestID:           "req_123",
+						AccountRateMultiplier: ptr(0.5),
-						Model:               "claude-3",
+						RequestID:             "req_123",
-						InputTokens:         10,
+						Model:                 "claude-3",
-						OutputTokens:        20,
+						InputTokens:           10,
-						CacheCreationTokens: 1,
+						OutputTokens:          20,
-						CacheReadTokens:     2,
+						CacheCreationTokens:   1,
-						TotalCost:           0.5,
+						CacheReadTokens:       2,
-						ActualCost:          0.5,
+						TotalCost:             0.5,
-						RateMultiplier:      1,
+						ActualCost:            0.5,
-						BillingType:         service.BillingTypeBalance,
+						RateMultiplier:        1,
-						Stream:              true,
+						BillingType:           service.BillingTypeBalance,
-						DurationMs:          ptr(100),
+						Stream:                true,
-						FirstTokenMs:        ptr(50),
+						DurationMs:            ptr(100),
-						CreatedAt:           deps.now,
+						FirstTokenMs:          ptr(50),
+						CreatedAt:             deps.now,
 					},
 				})
 			},
@@ -238,10 +385,9 @@ func TestAPIContracts(t *testing.T) {
 							"output_cost": 0,
 							"cache_creation_cost": 0,
 							"cache_read_cost": 0,
-							"total_cost": 0.5,
+						"total_cost": 0.5,
 						"actual_cost": 0.5,
 						"rate_multiplier": 1,
-						"account_rate_multiplier": null,
 						"billing_type": 0,
 							"stream": true,
 							"duration_ms": 100,
@@ -386,8 +532,11 @@ type contractDeps struct {
 	now         time.Time
 	router      http.Handler
 	apiKeyRepo  *stubApiKeyRepo
+	groupRepo   *stubGroupRepo
+	userSubRepo *stubUserSubscriptionRepo
 	usageRepo   *stubUsageLogRepo
 	settingRepo *stubSettingRepo
+	redeemRepo  *stubRedeemCodeRepo
 }
 
 func newContractDeps(t *testing.T) *contractDeps {
@@ -415,11 +564,11 @@ func newContractDeps(t *testing.T) *contractDeps {
 
 	apiKeyRepo := newStubApiKeyRepo(now)
 	apiKeyCache := stubApiKeyCache{}
-	groupRepo := stubGroupRepo{}
+	groupRepo := &stubGroupRepo{}
-	userSubRepo := stubUserSubscriptionRepo{}
+	userSubRepo := &stubUserSubscriptionRepo{}
 	accountRepo := stubAccountRepo{}
 	proxyRepo := stubProxyRepo{}
-	redeemRepo := stubRedeemCodeRepo{}
+	redeemRepo := &stubRedeemCodeRepo{}
 
 	cfg := &config.Config{
 		Default: config.DefaultConfig{
@@ -434,6 +583,12 @@ func newContractDeps(t *testing.T) *contractDeps {
 	usageRepo := newStubUsageLogRepo()
 	usageService := service.NewUsageService(usageRepo, userRepo, nil, nil)
 
+	subscriptionService := service.NewSubscriptionService(groupRepo, userSubRepo, nil)
+	subscriptionHandler := handler.NewSubscriptionHandler(subscriptionService)
+
+	redeemService := service.NewRedeemService(redeemRepo, userRepo, subscriptionService, nil, nil, nil, nil)
+	redeemHandler := handler.NewRedeemHandler(redeemService)
+
 	settingRepo := newStubSettingRepo()
 	settingService := service.NewSettingService(settingRepo, cfg)
 
@@ -473,12 +628,21 @@ func newContractDeps(t *testing.T) *contractDeps {
 	v1Keys.Use(jwtAuth)
 	v1Keys.GET("/keys", apiKeyHandler.List)
 	v1Keys.POST("/keys", apiKeyHandler.Create)
+	v1Keys.GET("/groups/available", apiKeyHandler.GetAvailableGroups)
 
 	v1Usage := v1.Group("")
 	v1Usage.Use(jwtAuth)
 	v1Usage.GET("/usage", usageHandler.List)
 	v1Usage.GET("/usage/stats", usageHandler.Stats)
 
+	v1Subs := v1.Group("")
+	v1Subs.Use(jwtAuth)
+	v1Subs.GET("/subscriptions", subscriptionHandler.List)
+
+	v1Redeem := v1.Group("")
+	v1Redeem.Use(jwtAuth)
+	v1Redeem.GET("/redeem/history", redeemHandler.GetHistory)
+
 	v1Admin := v1.Group("/admin")
 	v1Admin.Use(adminAuth)
 	v1Admin.GET("/settings", adminSettingHandler.GetSettings)
@@ -488,8 +652,11 @@ func newContractDeps(t *testing.T) *contractDeps {
 		now:         now,
 		router:      r,
 		apiKeyRepo:  apiKeyRepo,
+		groupRepo:   groupRepo,
+		userSubRepo: userSubRepo,
 		usageRepo:   usageRepo,
 		settingRepo: settingRepo,
+		redeemRepo:  redeemRepo,
 	}
 }
 
@@ -627,7 +794,13 @@ func (stubApiKeyCache) SubscribeAuthCacheInvalidation(ctx context.Context, handl
 	return nil
 }
 
-type stubGroupRepo struct{}
+type stubGroupRepo struct {
+	active []service.Group
+}
+
+func (r *stubGroupRepo) SetActive(groups []service.Group) {
+	r.active = append([]service.Group(nil), groups...)
+}
 
 func (stubGroupRepo) Create(ctx context.Context, group *service.Group) error {
 	return errors.New("not implemented")
@@ -661,12 +834,19 @@ func (stubGroupRepo) ListWithFilters(ctx context.Context, params pagination.Pagi
 	return nil, nil, errors.New("not implemented")
 }
 
-func (stubGroupRepo) ListActive(ctx context.Context) ([]service.Group, error) {
+func (r *stubGroupRepo) ListActive(ctx context.Context) ([]service.Group, error) {
-	return nil, errors.New("not implemented")
+	return append([]service.Group(nil), r.active...), nil
 }
 
-func (stubGroupRepo) ListActiveByPlatform(ctx context.Context, platform string) ([]service.Group, error) {
+func (r *stubGroupRepo) ListActiveByPlatform(ctx context.Context, platform string) ([]service.Group, error) {
-	return nil, errors.New("not implemented")
+	out := make([]service.Group, 0, len(r.active))
+	for i := range r.active {
+		g := r.active[i]
+		if g.Platform == platform {
+			out = append(out, g)
+		}
+	}
+	return out, nil
 }
 
 func (stubGroupRepo) ExistsByName(ctx context.Context, name string) (bool, error) {
@@ -884,7 +1064,16 @@ func (stubProxyRepo) ListAccountSummariesByProxyID(ctx context.Context, proxyID
 	return nil, errors.New("not implemented")
 }
 
-type stubRedeemCodeRepo struct{}
+type stubRedeemCodeRepo struct {
+	byUser map[int64][]service.RedeemCode
+}
+
+func (r *stubRedeemCodeRepo) SetByUser(userID int64, codes []service.RedeemCode) {
+	if r.byUser == nil {
+		r.byUser = make(map[int64][]service.RedeemCode)
+	}
+	r.byUser[userID] = append([]service.RedeemCode(nil), codes...)
+}
 
 func (stubRedeemCodeRepo) Create(ctx context.Context, code *service.RedeemCode) error {
 	return errors.New("not implemented")
@@ -922,11 +1111,35 @@ func (stubRedeemCodeRepo) ListWithFilters(ctx context.Context, params pagination
 	return nil, nil, errors.New("not implemented")
 }
 
-func (stubRedeemCodeRepo) ListByUser(ctx context.Context, userID int64, limit int) ([]service.RedeemCode, error) {
+func (r *stubRedeemCodeRepo) ListByUser(ctx context.Context, userID int64, limit int) ([]service.RedeemCode, error) {
-	return nil, errors.New("not implemented")
+	if r.byUser == nil {
+		return nil, nil
+	}
+	codes := r.byUser[userID]
+	if limit > 0 && len(codes) > limit {
+		codes = codes[:limit]
+	}
+	return append([]service.RedeemCode(nil), codes...), nil
 }
 
-type stubUserSubscriptionRepo struct{}
+type stubUserSubscriptionRepo struct {
+	byUser       map[int64][]service.UserSubscription
+	activeByUser map[int64][]service.UserSubscription
+}
+
+func (r *stubUserSubscriptionRepo) SetByUserID(userID int64, subs []service.UserSubscription) {
+	if r.byUser == nil {
+		r.byUser = make(map[int64][]service.UserSubscription)
+	}
+	r.byUser[userID] = append([]service.UserSubscription(nil), subs...)
+}
+
+func (r *stubUserSubscriptionRepo) SetActiveByUserID(userID int64, subs []service.UserSubscription) {
+	if r.activeByUser == nil {
+		r.activeByUser = make(map[int64][]service.UserSubscription)
+	}
+	r.activeByUser[userID] = append([]service.UserSubscription(nil), subs...)
+}
 
 func (stubUserSubscriptionRepo) Create(ctx context.Context, sub *service.UserSubscription) error {
 	return errors.New("not implemented")
@@ -946,11 +1159,17 @@ func (stubUserSubscriptionRepo) Update(ctx context.Context, sub *service.UserSub
 func (stubUserSubscriptionRepo) Delete(ctx context.Context, id int64) error {
 	return errors.New("not implemented")
 }
-func (stubUserSubscriptionRepo) ListByUserID(ctx context.Context, userID int64) ([]service.UserSubscription, error) {
+func (r *stubUserSubscriptionRepo) ListByUserID(ctx context.Context, userID int64) ([]service.UserSubscription, error) {
-	return nil, errors.New("not implemented")
+	if r.byUser == nil {
+		return nil, nil
+	}
+	return append([]service.UserSubscription(nil), r.byUser[userID]...), nil
 }
-func (stubUserSubscriptionRepo) ListActiveByUserID(ctx context.Context, userID int64) ([]service.UserSubscription, error) {
+func (r *stubUserSubscriptionRepo) ListActiveByUserID(ctx context.Context, userID int64) ([]service.UserSubscription, error) {
-	return nil, errors.New("not implemented")
+	if r.activeByUser == nil {
+		return nil, nil
+	}
+	return append([]service.UserSubscription(nil), r.activeByUser[userID]...), nil
 }
 func (stubUserSubscriptionRepo) ListByGroupID(ctx context.Context, groupID int64, params pagination.PaginationParams) ([]service.UserSubscription, *pagination.PaginationResult, error) {
 	return nil, nil, errors.New("not implemented")

frontend/src/api/admin/groups.ts

@@ -5,7 +5,7 @@
 
 import { apiClient } from '../client'
 import type {
-  Group,
+  AdminGroup,
   GroupPlatform,
   CreateGroupRequest,
   UpdateGroupRequest,
@@ -31,8 +31,8 @@ export async function list(
   options?: {
     signal?: AbortSignal
   }
-): Promise<PaginatedResponse<Group>> {
+): Promise<PaginatedResponse<AdminGroup>> {
-  const { data } = await apiClient.get<PaginatedResponse<Group>>('/admin/groups', {
+  const { data } = await apiClient.get<PaginatedResponse<AdminGroup>>('/admin/groups', {
     params: {
       page,
       page_size: pageSize,
@@ -48,8 +48,8 @@ export async function list(
  * @param platform - Optional platform filter
  * @returns List of all active groups
  */
-export async function getAll(platform?: GroupPlatform): Promise<Group[]> {
+export async function getAll(platform?: GroupPlatform): Promise<AdminGroup[]> {
-  const { data } = await apiClient.get<Group[]>('/admin/groups/all', {
+  const { data } = await apiClient.get<AdminGroup[]>('/admin/groups/all', {
     params: platform ? { platform } : undefined
   })
   return data
@@ -60,7 +60,7 @@ export async function getAll(platform?: GroupPlatform): Promise<Group[]> {
  * @param platform - Platform to filter by
  * @returns List of groups for the specified platform
  */
-export async function getByPlatform(platform: GroupPlatform): Promise<Group[]> {
+export async function getByPlatform(platform: GroupPlatform): Promise<AdminGroup[]> {
   return getAll(platform)
 }
 
@@ -69,8 +69,8 @@ export async function getByPlatform(platform: GroupPlatform): Promise<Group[]> {
  * @param id - Group ID
  * @returns Group details
  */
-export async function getById(id: number): Promise<Group> {
+export async function getById(id: number): Promise<AdminGroup> {
-  const { data } = await apiClient.get<Group>(`/admin/groups/${id}`)
+  const { data } = await apiClient.get<AdminGroup>(`/admin/groups/${id}`)
   return data
 }
 
@@ -79,8 +79,8 @@ export async function getById(id: number): Promise<Group> {
  * @param groupData - Group data
  * @returns Created group
  */
-export async function create(groupData: CreateGroupRequest): Promise<Group> {
+export async function create(groupData: CreateGroupRequest): Promise<AdminGroup> {
-  const { data } = await apiClient.post<Group>('/admin/groups', groupData)
+  const { data } = await apiClient.post<AdminGroup>('/admin/groups', groupData)
   return data
 }
 
@@ -90,8 +90,8 @@ export async function create(groupData: CreateGroupRequest): Promise<Group> {
  * @param updates - Fields to update
  * @returns Updated group
  */
-export async function update(id: number, updates: UpdateGroupRequest): Promise<Group> {
+export async function update(id: number, updates: UpdateGroupRequest): Promise<AdminGroup> {
-  const { data } = await apiClient.put<Group>(`/admin/groups/${id}`, updates)
+  const { data } = await apiClient.put<AdminGroup>(`/admin/groups/${id}`, updates)
   return data
 }
 
@@ -111,7 +111,7 @@ export async function deleteGroup(id: number): Promise<{ message: string }> {
  * @param status - New status
  * @returns Updated group
  */
-export async function toggleStatus(id: number, status: 'active' | 'inactive'): Promise<Group> {
+export async function toggleStatus(id: number, status: 'active' | 'inactive'): Promise<AdminGroup> {
   return update(id, { status })
 }
 

frontend/src/api/admin/usage.ts

@@ -4,7 +4,7 @@
  */
 
 import { apiClient } from '../client'
-import type { UsageLog, UsageQueryParams, PaginatedResponse } from '@/types'
+import type { AdminUsageLog, UsageQueryParams, PaginatedResponse } from '@/types'
 
 // ==================== Types ====================
 
@@ -85,8 +85,8 @@ export interface AdminUsageQueryParams extends UsageQueryParams {
 export async function list(
   params: AdminUsageQueryParams,
   options?: { signal?: AbortSignal }
-): Promise<PaginatedResponse<UsageLog>> {
+): Promise<PaginatedResponse<AdminUsageLog>> {
-  const { data } = await apiClient.get<PaginatedResponse<UsageLog>>('/admin/usage', {
+  const { data } = await apiClient.get<PaginatedResponse<AdminUsageLog>>('/admin/usage', {
     params,
     signal: options?.signal
   })

frontend/src/api/admin/users.ts

@@ -4,7 +4,7 @@
  */
 
 import { apiClient } from '../client'
-import type { User, UpdateUserRequest, PaginatedResponse } from '@/types'
+import type { AdminUser, UpdateUserRequest, PaginatedResponse } from '@/types'
 
 /**
  * List all users with pagination
@@ -26,7 +26,7 @@ export async function list(
   options?: {
     signal?: AbortSignal
   }
-): Promise<PaginatedResponse<User>> {
+): Promise<PaginatedResponse<AdminUser>> {
   // Build params with attribute filters in attr[id]=value format
   const params: Record<string, any> = {
     page,
@@ -44,8 +44,7 @@ export async function list(
       }
     }
   }
-
+  const { data } = await apiClient.get<PaginatedResponse<AdminUser>>('/admin/users', {
-  const { data } = await apiClient.get<PaginatedResponse<User>>('/admin/users', {
     params,
     signal: options?.signal
   })
@@ -57,8 +56,8 @@ export async function list(
  * @param id - User ID
  * @returns User details
  */
-export async function getById(id: number): Promise<User> {
+export async function getById(id: number): Promise<AdminUser> {
-  const { data } = await apiClient.get<User>(`/admin/users/${id}`)
+  const { data } = await apiClient.get<AdminUser>(`/admin/users/${id}`)
   return data
 }
 
@@ -73,8 +72,8 @@ export async function create(userData: {
   balance?: number
   concurrency?: number
   allowed_groups?: number[] | null
-}): Promise<User> {
+}): Promise<AdminUser> {
-  const { data } = await apiClient.post<User>('/admin/users', userData)
+  const { data } = await apiClient.post<AdminUser>('/admin/users', userData)
   return data
 }
 
@@ -84,8 +83,8 @@ export async function create(userData: {
  * @param updates - Fields to update
  * @returns Updated user
  */
-export async function update(id: number, updates: UpdateUserRequest): Promise<User> {
+export async function update(id: number, updates: UpdateUserRequest): Promise<AdminUser> {
-  const { data } = await apiClient.put<User>(`/admin/users/${id}`, updates)
+  const { data } = await apiClient.put<AdminUser>(`/admin/users/${id}`, updates)
   return data
 }
 
@@ -112,8 +111,8 @@ export async function updateBalance(
   balance: number,
   operation: 'set' | 'add' | 'subtract' = 'set',
   notes?: string
-): Promise<User> {
+): Promise<AdminUser> {
-  const { data } = await apiClient.post<User>(`/admin/users/${id}/balance`, {
+  const { data } = await apiClient.post<AdminUser>(`/admin/users/${id}/balance`, {
     balance,
     operation,
     notes: notes || ''
@@ -127,7 +126,7 @@ export async function updateBalance(
  * @param concurrency - New concurrency limit
  * @returns Updated user
  */
-export async function updateConcurrency(id: number, concurrency: number): Promise<User> {
+export async function updateConcurrency(id: number, concurrency: number): Promise<AdminUser> {
   return update(id, { concurrency })
 }
 
@@ -137,7 +136,7 @@ export async function updateConcurrency(id: number, concurrency: number): Promis
  * @param status - New status
  * @returns Updated user
  */
-export async function toggleStatus(id: number, status: 'active' | 'disabled'): Promise<User> {
+export async function toggleStatus(id: number, status: 'active' | 'disabled'): Promise<AdminUser> {
   return update(id, { status })
 }
 

frontend/src/components/account/BulkEditAccountModal.vue

@@ -648,7 +648,7 @@ import { ref, watch, computed } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { useAppStore } from '@/stores/app'
 import { adminAPI } from '@/api/admin'
-import type { Proxy, Group } from '@/types'
+import type { Proxy, AdminGroup } from '@/types'
 import BaseDialog from '@/components/common/BaseDialog.vue'
 import Select from '@/components/common/Select.vue'
 import ProxySelector from '@/components/common/ProxySelector.vue'
@@ -659,7 +659,7 @@ interface Props {
   show: boolean
   accountIds: number[]
   proxies: Proxy[]
-  groups: Group[]
+  groups: AdminGroup[]
 }
 
 const props = defineProps<Props>()

frontend/src/components/account/CreateAccountModal.vue

@@ -1816,7 +1816,7 @@ import {
 import { useOpenAIOAuth } from '@/composables/useOpenAIOAuth'
 import { useGeminiOAuth } from '@/composables/useGeminiOAuth'
 import { useAntigravityOAuth } from '@/composables/useAntigravityOAuth'
-import type { Proxy, Group, AccountPlatform, AccountType } from '@/types'
+import type { Proxy, AdminGroup, AccountPlatform, AccountType } from '@/types'
 import BaseDialog from '@/components/common/BaseDialog.vue'
 import Icon from '@/components/icons/Icon.vue'
 import ProxySelector from '@/components/common/ProxySelector.vue'
@@ -1862,7 +1862,7 @@ const apiKeyHint = computed(() => {
 interface Props {
   show: boolean
   proxies: Proxy[]
-  groups: Group[]
+  groups: AdminGroup[]
 }
 
 const props = defineProps<Props>()

frontend/src/components/account/EditAccountModal.vue

@@ -883,7 +883,7 @@ import { useI18n } from 'vue-i18n'
 import { useAppStore } from '@/stores/app'
 import { useAuthStore } from '@/stores/auth'
 import { adminAPI } from '@/api/admin'
-import type { Account, Proxy, Group } from '@/types'
+import type { Account, Proxy, AdminGroup } from '@/types'
 import BaseDialog from '@/components/common/BaseDialog.vue'
 import Select from '@/components/common/Select.vue'
 import Icon from '@/components/icons/Icon.vue'
@@ -901,7 +901,7 @@ interface Props {
   show: boolean
   account: Account | null
   proxies: Proxy[]
-  groups: Group[]
+  groups: AdminGroup[]
 }
 
 const props = defineProps<Props>()

frontend/src/components/admin/usage/UsageTable.vue

@@ -239,7 +239,7 @@ import { formatDateTime } from '@/utils/format'
 import DataTable from '@/components/common/DataTable.vue'
 import EmptyState from '@/components/common/EmptyState.vue'
 import Icon from '@/components/icons/Icon.vue'
-import type { UsageLog } from '@/types'
+import type { AdminUsageLog } from '@/types'
 
 defineProps(['data', 'loading'])
 const { t } = useI18n()
@@ -247,12 +247,12 @@ const { t } = useI18n()
 // Tooltip state - cost
 const tooltipVisible = ref(false)
 const tooltipPosition = ref({ x: 0, y: 0 })
-const tooltipData = ref<UsageLog | null>(null)
+const tooltipData = ref<AdminUsageLog | null>(null)
 
 // Tooltip state - token
 const tokenTooltipVisible = ref(false)
 const tokenTooltipPosition = ref({ x: 0, y: 0 })
-const tokenTooltipData = ref<UsageLog | null>(null)
+const tokenTooltipData = ref<AdminUsageLog | null>(null)
 
 const cols = computed(() => [
   { key: 'user', label: t('admin.usage.user'), sortable: false },
@@ -296,7 +296,7 @@ const formatDuration = (ms: number | null | undefined): string => {
 }
 
 // Cost tooltip functions
-const showTooltip = (event: MouseEvent, row: UsageLog) => {
+const showTooltip = (event: MouseEvent, row: AdminUsageLog) => {
   const target = event.currentTarget as HTMLElement
   const rect = target.getBoundingClientRect()
   tooltipData.value = row
@@ -311,7 +311,7 @@ const hideTooltip = () => {
 }
 
 // Token tooltip functions
-const showTokenTooltip = (event: MouseEvent, row: UsageLog) => {
+const showTokenTooltip = (event: MouseEvent, row: AdminUsageLog) => {
   const target = event.currentTarget as HTMLElement
   const rect = target.getBoundingClientRect()
   tokenTooltipData.value = row

frontend/src/components/admin/user/UserAllowedGroupsModal.vue

@@ -39,10 +39,10 @@ import { ref, watch } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { useAppStore } from '@/stores/app'
 import { adminAPI } from '@/api/admin'
-import type { User, Group } from '@/types'
+import type { AdminUser, Group } from '@/types'
 import BaseDialog from '@/components/common/BaseDialog.vue'
 
-const props = defineProps<{ show: boolean, user: User | null }>()
+const props = defineProps<{ show: boolean, user: AdminUser | null }>()
 const emit = defineEmits(['close', 'success']); const { t } = useI18n(); const appStore = useAppStore()
 
 const groups = ref<Group[]>([]); const selectedIds = ref<number[]>([]); const loading = ref(false); const submitting = ref(false)

frontend/src/components/admin/user/UserApiKeysModal.vue

@@ -32,10 +32,10 @@ import { ref, watch } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { adminAPI } from '@/api/admin'
 import { formatDateTime } from '@/utils/format'
-import type { User, ApiKey } from '@/types'
+import type { AdminUser, ApiKey } from '@/types'
 import BaseDialog from '@/components/common/BaseDialog.vue'
 
-const props = defineProps<{ show: boolean, user: User | null }>()
+const props = defineProps<{ show: boolean, user: AdminUser | null }>()
 defineEmits(['close']); const { t } = useI18n()
 const apiKeys = ref<ApiKey[]>([]); const loading = ref(false)
 

frontend/src/components/admin/user/UserBalanceModal.vue

@@ -29,10 +29,10 @@ import { reactive, ref, watch } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { useAppStore } from '@/stores/app'
 import { adminAPI } from '@/api/admin'
-import type { User } from '@/types'
+import type { AdminUser } from '@/types'
 import BaseDialog from '@/components/common/BaseDialog.vue'
 
-const props = defineProps<{ show: boolean, user: User | null, operation: 'add' | 'subtract' }>()
+const props = defineProps<{ show: boolean, user: AdminUser | null, operation: 'add' | 'subtract' }>()
 const emit = defineEmits(['close', 'success']); const { t } = useI18n(); const appStore = useAppStore()
 
 const submitting = ref(false); const form = reactive({ amount: 0, notes: '' })

frontend/src/components/admin/user/UserEditModal.vue

@@ -56,12 +56,12 @@ import { useI18n } from 'vue-i18n'
 import { useAppStore } from '@/stores/app'
 import { useClipboard } from '@/composables/useClipboard'
 import { adminAPI } from '@/api/admin'
-import type { User, UserAttributeValuesMap } from '@/types'
+import type { AdminUser, UserAttributeValuesMap } from '@/types'
 import BaseDialog from '@/components/common/BaseDialog.vue'
 import UserAttributeForm from '@/components/user/UserAttributeForm.vue'
 import Icon from '@/components/icons/Icon.vue'
 
-const props = defineProps<{ show: boolean, user: User | null }>()
+const props = defineProps<{ show: boolean, user: AdminUser | null }>()
 const emit = defineEmits(['close', 'success'])
 const { t } = useI18n(); const appStore = useAppStore(); const { copyToClipboard } = useClipboard()
 

frontend/src/components/common/GroupSelector.vue

@@ -42,13 +42,13 @@
 import { computed } from 'vue'
 import { useI18n } from 'vue-i18n'
 import GroupBadge from './GroupBadge.vue'
-import type { Group, GroupPlatform } from '@/types'
+import type { AdminGroup, GroupPlatform } from '@/types'
 
 const { t } = useI18n()
 
 interface Props {
   modelValue: number[]
-  groups: Group[]
+  groups: AdminGroup[]
   platform?: GroupPlatform // Optional platform filter
   mixedScheduling?: boolean // For antigravity accounts: allow anthropic/gemini groups
 }

frontend/src/types/index.ts

@@ -27,7 +27,6 @@ export interface FetchOptions {
 export interface User {
   id: number
   username: string
-  notes: string
   email: string
   role: 'admin' | 'user' // User role for authorization
   balance: number // User balance for API usage
@@ -39,6 +38,11 @@ export interface User {
   updated_at: string
 }
 
+export interface AdminUser extends User {
+  // 管理员备注（普通用户接口不返回）
+  notes: string
+}
+
 export interface LoginRequest {
   email: string
   password: string
@@ -270,14 +274,19 @@ export interface Group {
   // Claude Code 客户端限制
   claude_code_only: boolean
   fallback_group_id: number | null
-  // 模型路由配置（仅 anthropic 平台使用）
-  model_routing: Record<string, number[]> | null
-  model_routing_enabled: boolean
-  account_count?: number
   created_at: string
   updated_at: string
 }
 
+export interface AdminGroup extends Group {
+  // 模型路由配置（仅管理员可见，内部信息）
+  model_routing: Record<string, number[]> | null
+  model_routing_enabled: boolean
+
+  // 分组下账号数量（仅管理员可见）
+  account_count?: number
+}
+
 export interface ApiKey {
   id: number
   user_id: number
@@ -637,7 +646,6 @@ export interface UsageLog {
   total_cost: number
   actual_cost: number
   rate_multiplier: number
-  account_rate_multiplier?: number | null
   billing_type: number
 
   stream: boolean
@@ -651,18 +659,30 @@ export interface UsageLog {
   // User-Agent
   user_agent: string | null
 
-  // IP 地址（仅管理员可见）
-  ip_address: string | null
-
   created_at: string
 
   user?: User
   api_key?: ApiKey
-  account?: Account
   group?: Group
   subscription?: UserSubscription
 }
 
+export interface UsageLogAccountSummary {
+  id: number
+  name: string
+}
+
+export interface AdminUsageLog extends UsageLog {
+  // 账号计费倍率（仅管理员可见）
+  account_rate_multiplier?: number | null
+
+  // 用户请求 IP（仅管理员可见）
+  ip_address?: string | null
+
+  // 最小账号信息（仅管理员接口返回）
+  account?: UsageLogAccountSummary
+}
+
 export interface UsageCleanupFilters {
   start_time: string
   end_time: string

frontend/src/views/admin/AccountsView.vue

@@ -187,14 +187,14 @@ import AccountCapacityCell from '@/components/account/AccountCapacityCell.vue'
 import PlatformTypeBadge from '@/components/common/PlatformTypeBadge.vue'
 import Icon from '@/components/icons/Icon.vue'
 import { formatDateTime, formatRelativeTime } from '@/utils/format'
-import type { Account, Proxy, Group } from '@/types'
+import type { Account, Proxy, AdminGroup } from '@/types'
 
 const { t } = useI18n()
 const appStore = useAppStore()
 const authStore = useAuthStore()
 
 const proxies = ref<Proxy[]>([])
-const groups = ref<Group[]>([])
+const groups = ref<AdminGroup[]>([])
 const selIds = ref<number[]>([])
 const showCreate = ref(false)
 const showEdit = ref(false)

frontend/src/views/admin/GroupsView.vue

@@ -1107,7 +1107,7 @@ import { useI18n } from 'vue-i18n'
 import { useAppStore } from '@/stores/app'
 import { useOnboardingStore } from '@/stores/onboarding'
 import { adminAPI } from '@/api/admin'
-import type { Group, GroupPlatform, SubscriptionType } from '@/types'
+import type { AdminGroup, GroupPlatform, SubscriptionType } from '@/types'
 import type { Column } from '@/components/common/types'
 import AppLayout from '@/components/layout/AppLayout.vue'
 import TablePageLayout from '@/components/layout/TablePageLayout.vue'
@@ -1202,7 +1202,7 @@ const fallbackGroupOptionsForEdit = computed(() => {
   return options
 })
 
-const groups = ref<Group[]>([])
+const groups = ref<AdminGroup[]>([])
 const loading = ref(false)
 const searchQuery = ref('')
 const filters = reactive({
@@ -1223,8 +1223,8 @@ const showCreateModal = ref(false)
 const showEditModal = ref(false)
 const showDeleteDialog = ref(false)
 const submitting = ref(false)
-const editingGroup = ref<Group | null>(null)
+const editingGroup = ref<AdminGroup | null>(null)
-const deletingGroup = ref<Group | null>(null)
+const deletingGroup = ref<AdminGroup | null>(null)
 
 const createForm = reactive({
   name: '',
@@ -1529,7 +1529,7 @@ const handleCreateGroup = async () => {
   }
 }
 
-const handleEdit = async (group: Group) => {
+const handleEdit = async (group: AdminGroup) => {
   editingGroup.value = group
   editForm.name = group.name
   editForm.description = group.description || ''
@@ -1585,7 +1585,7 @@ const handleUpdateGroup = async () => {
   }
 }
 
-const handleDelete = (group: Group) => {
+const handleDelete = (group: AdminGroup) => {
   deletingGroup.value = group
   showDeleteDialog.value = true
 }

frontend/src/views/admin/UsageView.vue

@@ -42,11 +42,11 @@ import UsageStatsCards from '@/components/admin/usage/UsageStatsCards.vue'; impo
 import UsageTable from '@/components/admin/usage/UsageTable.vue'; import UsageExportProgress from '@/components/admin/usage/UsageExportProgress.vue'
 import UsageCleanupDialog from '@/components/admin/usage/UsageCleanupDialog.vue'
 import ModelDistributionChart from '@/components/charts/ModelDistributionChart.vue'; import TokenUsageTrend from '@/components/charts/TokenUsageTrend.vue'
-import type { UsageLog, TrendDataPoint, ModelStat } from '@/types'; import type { AdminUsageStatsResponse, AdminUsageQueryParams } from '@/api/admin/usage'
+import type { AdminUsageLog, TrendDataPoint, ModelStat } from '@/types'; import type { AdminUsageStatsResponse, AdminUsageQueryParams } from '@/api/admin/usage'
 
 const { t } = useI18n()
 const appStore = useAppStore()
-const usageStats = ref<AdminUsageStatsResponse | null>(null); const usageLogs = ref<UsageLog[]>([]); const loading = ref(false); const exporting = ref(false)
+const usageStats = ref<AdminUsageStatsResponse | null>(null); const usageLogs = ref<AdminUsageLog[]>([]); const loading = ref(false); const exporting = ref(false)
 const trendData = ref<TrendDataPoint[]>([]); const modelStats = ref<ModelStat[]>([]); const chartsLoading = ref(false); const granularity = ref<'day' | 'hour'>('day')
 let abortController: AbortController | null = null; let exportAbortController: AbortController | null = null
 const exportProgress = reactive({ show: false, progress: 0, current: 0, total: 0, estimatedTime: '' })
@@ -92,7 +92,7 @@ const exportToExcel = async () => {
   if (exporting.value) return; exporting.value = true; exportProgress.show = true
   const c = new AbortController(); exportAbortController = c
   try {
-    const all: UsageLog[] = []; let p = 1; let total = pagination.total
+    const all: AdminUsageLog[] = []; let p = 1; let total = pagination.total
     while (true) {
       const res = await adminUsageAPI.list({ page: p, page_size: 100, ...filters.value }, { signal: c.signal })
       if (c.signal.aborted) break; if (p === 1) { total = res.total; exportProgress.total = total }

frontend/src/views/admin/UsersView.vue

@@ -492,7 +492,7 @@ import Icon from '@/components/icons/Icon.vue'
 
 const { t } = useI18n()
 import { adminAPI } from '@/api/admin'
-import type { User, UserAttributeDefinition } from '@/types'
+import type { AdminUser, UserAttributeDefinition } from '@/types'
 import type { BatchUserUsageStats } from '@/api/admin/dashboard'
 import type { Column } from '@/components/common/types'
 import AppLayout from '@/components/layout/AppLayout.vue'
@@ -637,7 +637,7 @@ const columns = computed<Column[]>(() =>
   )
 )
 
-const users = ref<User[]>([])
+const users = ref<AdminUser[]>([])
 const loading = ref(false)
 const searchQuery = ref('')
 
@@ -736,16 +736,16 @@ const showEditModal = ref(false)
 const showDeleteDialog = ref(false)
 const showApiKeysModal = ref(false)
 const showAttributesModal = ref(false)
-const editingUser = ref<User | null>(null)
+const editingUser = ref<AdminUser | null>(null)
-const deletingUser = ref<User | null>(null)
+const deletingUser = ref<AdminUser | null>(null)
-const viewingUser = ref<User | null>(null)
+const viewingUser = ref<AdminUser | null>(null)
 let abortController: AbortController | null = null
 
 // Action Menu State
 const activeMenuId = ref<number | null>(null)
 const menuPosition = ref<{ top: number; left: number } | null>(null)
 
-const openActionMenu = (user: User, e: MouseEvent) => {
+const openActionMenu = (user: AdminUser, e: MouseEvent) => {
   if (activeMenuId.value === user.id) {
     closeActionMenu()
   } else {
@@ -821,11 +821,11 @@ const handleClickOutside = (event: MouseEvent) => {
 
 // Allowed groups modal state
 const showAllowedGroupsModal = ref(false)
-const allowedGroupsUser = ref<User | null>(null)
+const allowedGroupsUser = ref<AdminUser | null>(null)
 
 // Balance (Deposit/Withdraw) modal state
 const showBalanceModal = ref(false)
-const balanceUser = ref<User | null>(null)
+const balanceUser = ref<AdminUser | null>(null)
 const balanceOperation = ref<'add' | 'subtract'>('add')
 
 // 计算剩余天数
@@ -998,7 +998,7 @@ const applyFilter = () => {
   loadUsers()
 }
 
-const handleEdit = (user: User) => {
+const handleEdit = (user: AdminUser) => {
   editingUser.value = user
   showEditModal.value = true
 }
@@ -1008,7 +1008,7 @@ const closeEditModal = () => {
   editingUser.value = null
 }
 
-const handleToggleStatus = async (user: User) => {
+const handleToggleStatus = async (user: AdminUser) => {
   const newStatus = user.status === 'active' ? 'disabled' : 'active'
   try {
     await adminAPI.users.toggleStatus(user.id, newStatus)
@@ -1022,7 +1022,7 @@ const handleToggleStatus = async (user: User) => {
   }
 }
 
-const handleViewApiKeys = (user: User) => {
+const handleViewApiKeys = (user: AdminUser) => {
   viewingUser.value = user
   showApiKeysModal.value = true
 }
@@ -1032,7 +1032,7 @@ const closeApiKeysModal = () => {
   viewingUser.value = null
 }
 
-const handleAllowedGroups = (user: User) => {
+const handleAllowedGroups = (user: AdminUser) => {
   allowedGroupsUser.value = user
   showAllowedGroupsModal.value = true
 }
@@ -1042,7 +1042,7 @@ const closeAllowedGroupsModal = () => {
   allowedGroupsUser.value = null
 }
 
-const handleDelete = (user: User) => {
+const handleDelete = (user: AdminUser) => {
   deletingUser.value = user
   showDeleteDialog.value = true
 }
@@ -1061,13 +1061,13 @@ const confirmDelete = async () => {
   }
 }
 
-const handleDeposit = (user: User) => {
+const handleDeposit = (user: AdminUser) => {
   balanceUser.value = user
   balanceOperation.value = 'add'
   showBalanceModal.value = true
 }
 
-const handleWithdraw = (user: User) => {
+const handleWithdraw = (user: AdminUser) => {
   balanceUser.value = user
   balanceOperation.value = 'subtract'
   showBalanceModal.value = true