ci(backend): 添加 gofmt 配置

backend/.golangci.yml

@@ -571,4 +571,17 @@ linters:
 
 formatters:
   enable:
-    - gofmt
\ No newline at end of file
+    - gofmt
+  settings:
+    gofmt:
+      # Simplify code: gofmt with `-s` option.
+      # Default: true
+      simplify: false
+      # Apply the rewrite rules to the source before reformatting.
+      # https://pkg.go.dev/cmd/gofmt
+      # Default: []
+      rewrite-rules:
+        - pattern: 'interface{}'
+          replacement: 'any'
+        - pattern: 'a[b:len(a)]'
+          replacement: 'a[b:]'
\ No newline at end of file

backend/internal/handler/admin/account_handler.go

@@ -44,29 +44,29 @@ func NewAccountHandler(adminService service.AdminService, oauthService *service.
 
 // CreateAccountRequest represents create account request
 type CreateAccountRequest struct {
-	Name        string                 `json:"name" binding:"required"`
-	Platform    string                 `json:"platform" binding:"required"`
-	Type        string                 `json:"type" binding:"required,oneof=oauth setup-token apikey"`
-	Credentials map[string]interface{} `json:"credentials" binding:"required"`
-	Extra       map[string]interface{} `json:"extra"`
-	ProxyID     *int64                 `json:"proxy_id"`
-	Concurrency int                    `json:"concurrency"`
-	Priority    int                    `json:"priority"`
-	GroupIDs    []int64                `json:"group_ids"`
+	Name        string         `json:"name" binding:"required"`
+	Platform    string         `json:"platform" binding:"required"`
+	Type        string         `json:"type" binding:"required,oneof=oauth setup-token apikey"`
+	Credentials map[string]any `json:"credentials" binding:"required"`
+	Extra       map[string]any `json:"extra"`
+	ProxyID     *int64         `json:"proxy_id"`
+	Concurrency int            `json:"concurrency"`
+	Priority    int            `json:"priority"`
+	GroupIDs    []int64        `json:"group_ids"`
 }
 
 // UpdateAccountRequest represents update account request
 // 使用指针类型来区分"未提供"和"设置为0"
 type UpdateAccountRequest struct {
-	Name        string                 `json:"name"`
-	Type        string                 `json:"type" binding:"omitempty,oneof=oauth setup-token apikey"`
-	Credentials map[string]interface{} `json:"credentials"`
-	Extra       map[string]interface{} `json:"extra"`
-	ProxyID     *int64                 `json:"proxy_id"`
-	Concurrency *int                   `json:"concurrency"`
-	Priority    *int                   `json:"priority"`
-	Status      string                 `json:"status" binding:"omitempty,oneof=active inactive"`
-	GroupIDs    *[]int64               `json:"group_ids"`
+	Name        string         `json:"name"`
+	Type        string         `json:"type" binding:"omitempty,oneof=oauth setup-token apikey"`
+	Credentials map[string]any `json:"credentials"`
+	Extra       map[string]any `json:"extra"`
+	ProxyID     *int64         `json:"proxy_id"`
+	Concurrency *int           `json:"concurrency"`
+	Priority    *int           `json:"priority"`
+	Status      string         `json:"status" binding:"omitempty,oneof=active inactive"`
+	GroupIDs    *[]int64       `json:"group_ids"`
 }
 
 // List handles listing all accounts with pagination
@@ -240,7 +240,7 @@ func (h *AccountHandler) Refresh(c *gin.Context) {
 	}
 
 	// Copy existing credentials to preserve non-token settings (e.g., intercept_warmup_requests)
-	newCredentials := make(map[string]interface{})
+	newCredentials := make(map[string]any)
 	for k, v := range account.Credentials {
 		newCredentials[k] = v
 	}

backend/internal/handler/admin/dashboard_handler.go

@@ -255,7 +255,7 @@ func (h *DashboardHandler) GetBatchUsersUsage(c *gin.Context) {
 	}
 
 	if len(req.UserIDs) == 0 {
-		response.Success(c, gin.H{"stats": map[string]interface{}{}})
+		response.Success(c, gin.H{"stats": map[string]any{}})
 		return
 	}
 
@@ -283,7 +283,7 @@ func (h *DashboardHandler) GetBatchApiKeysUsage(c *gin.Context) {
 	}
 
 	if len(req.ApiKeyIDs) == 0 {
-		response.Success(c, gin.H{"stats": map[string]interface{}{}})
+		response.Success(c, gin.H{"stats": map[string]any{}})
 		return
 	}
 

backend/internal/handler/admin/usage_handler.go

@@ -193,7 +193,7 @@ func (h *UsageHandler) Stats(c *gin.Context) {
 func (h *UsageHandler) SearchUsers(c *gin.Context) {
 	keyword := c.Query("q")
 	if keyword == "" {
-		response.Success(c, []interface{}{})
+		response.Success(c, []any{})
 		return
 	}
 

backend/internal/handler/usage_handler.go

@@ -358,7 +358,7 @@ func (h *UsageHandler) DashboardApiKeysUsage(c *gin.Context) {
 	}
 
 	if len(req.ApiKeyIDs) == 0 {
-		response.Success(c, gin.H{"stats": map[string]interface{}{}})
+		response.Success(c, gin.H{"stats": map[string]any{}})
 		return
 	}
 
@@ -383,7 +383,7 @@ func (h *UsageHandler) DashboardApiKeysUsage(c *gin.Context) {
 	}
 
 	if len(validApiKeyIDs) == 0 {
-		response.Success(c, gin.H{"stats": map[string]interface{}{}})
+		response.Success(c, gin.H{"stats": map[string]any{}})
 		return
 	}
 

backend/internal/model/account.go

@@ -10,7 +10,7 @@ import (
 )
 
 // JSONB 用于存储JSONB数据
-type JSONB map[string]interface{}
+type JSONB map[string]any
 
 func (j JSONB) Value() (driver.Value, error) {
 	if j == nil {
@@ -19,7 +19,7 @@ func (j JSONB) Value() (driver.Value, error) {
 	return json.Marshal(j)
 }
 
-func (j *JSONB) Scan(value interface{}) error {
+func (j *JSONB) Scan(value any) error {
 	if value == nil {
 		*j = nil
 		return nil
@@ -145,7 +145,7 @@ func (a *Account) GetModelMapping() map[string]string {
 		return nil
 	}
 	// 处理map[string]interface{}类型
-	if m, ok := raw.(map[string]interface{}); ok {
+	if m, ok := raw.(map[string]any); ok {
 		result := make(map[string]string)
 		for k, v := range m {
 			if s, ok := v.(string); ok {
@@ -231,7 +231,7 @@ func (a *Account) GetCustomErrorCodes() []int {
 		return nil
 	}
 	// 处理 []interface{} 类型（JSON反序列化后的格式）
-	if arr, ok := raw.([]interface{}); ok {
+	if arr, ok := raw.([]any); ok {
 		result := make([]int, 0, len(arr))
 		for _, v := range arr {
 			// JSON 数字默认解析为 float64

backend/internal/pkg/response/response.go

@@ -9,22 +9,22 @@ import (
 
 // Response 标准API响应格式
 type Response struct {
-	Code    int         `json:"code"`
-	Message string      `json:"message"`
-	Data    interface{} `json:"data,omitempty"`
+	Code    int    `json:"code"`
+	Message string `json:"message"`
+	Data    any    `json:"data,omitempty"`
 }
 
 // PaginatedData 分页数据格式（匹配前端期望）
 type PaginatedData struct {
-	Items    interface{} `json:"items"`
-	Total    int64       `json:"total"`
-	Page     int         `json:"page"`
-	PageSize int         `json:"page_size"`
-	Pages    int         `json:"pages"`
+	Items    any   `json:"items"`
+	Total    int64 `json:"total"`
+	Page     int   `json:"page"`
+	PageSize int   `json:"page_size"`
+	Pages    int   `json:"pages"`
 }
 
 // Success 返回成功响应
-func Success(c *gin.Context, data interface{}) {
+func Success(c *gin.Context, data any) {
 	c.JSON(http.StatusOK, Response{
 		Code:    0,
 		Message: "success",
@@ -33,7 +33,7 @@ func Success(c *gin.Context, data interface{}) {
 }
 
 // Created 返回创建成功响应
-func Created(c *gin.Context, data interface{}) {
+func Created(c *gin.Context, data any) {
 	c.JSON(http.StatusCreated, Response{
 		Code:    0,
 		Message: "success",
@@ -75,7 +75,7 @@ func InternalError(c *gin.Context, message string) {
 }
 
 // Paginated 返回分页数据
-func Paginated(c *gin.Context, items interface{}, total int64, page, pageSize int) {
+func Paginated(c *gin.Context, items any, total int64, page, pageSize int) {
 	pages := int(math.Ceil(float64(total) / float64(pageSize)))
 	if pages < 1 {
 		pages = 1
@@ -99,7 +99,7 @@ type PaginationResult struct {
 }
 
 // PaginatedWithResult 使用PaginationResult返回分页数据
-func PaginatedWithResult(c *gin.Context, items interface{}, pagination *PaginationResult) {
+func PaginatedWithResult(c *gin.Context, items any, pagination *PaginationResult) {
 	if pagination == nil {
 		Success(c, PaginatedData{
 			Items:    items,

backend/internal/repository/account_repo.go

@@ -131,7 +131,7 @@ func (r *AccountRepository) UpdateLastUsed(ctx context.Context, id int64) error
 
 func (r *AccountRepository) SetError(ctx context.Context, id int64, errorMsg string) error {
 	return r.db.WithContext(ctx).Model(&model.Account{}).Where("id = ?", id).
-		Updates(map[string]interface{}{
+		Updates(map[string]any{
 			"status":        model.StatusError,
 			"error_message": errorMsg,
 		}).Error
@@ -226,7 +226,7 @@ func (r *AccountRepository) ListSchedulableByGroupID(ctx context.Context, groupI
 func (r *AccountRepository) SetRateLimited(ctx context.Context, id int64, resetAt time.Time) error {
 	now := time.Now()
 	return r.db.WithContext(ctx).Model(&model.Account{}).Where("id = ?", id).
-		Updates(map[string]interface{}{
+		Updates(map[string]any{
 			"rate_limited_at":     now,
 			"rate_limit_reset_at": resetAt,
 		}).Error
@@ -241,7 +241,7 @@ func (r *AccountRepository) SetOverloaded(ctx context.Context, id int64, until t
 // ClearRateLimit 清除账号的限流状态
 func (r *AccountRepository) ClearRateLimit(ctx context.Context, id int64) error {
 	return r.db.WithContext(ctx).Model(&model.Account{}).Where("id = ?", id).
-		Updates(map[string]interface{}{
+		Updates(map[string]any{
 			"rate_limited_at":     nil,
 			"rate_limit_reset_at": nil,
 			"overload_until":      nil,
@@ -250,7 +250,7 @@ func (r *AccountRepository) ClearRateLimit(ctx context.Context, id int64) error
 
 // UpdateSessionWindow 更新账号的5小时时间窗口信息
 func (r *AccountRepository) UpdateSessionWindow(ctx context.Context, id int64, start, end *time.Time, status string) error {
-	updates := map[string]interface{}{
+	updates := map[string]any{
 		"session_window_status": status,
 	}
 	if start != nil {

backend/internal/repository/billing_cache.go

@@ -143,7 +143,7 @@ func (c *billingCache) SetSubscriptionCache(ctx context.Context, userID, groupID
 
 	key := fmt.Sprintf("%s%d:%d", billingSubKeyPrefix, userID, groupID)
 
-	fields := map[string]interface{}{
+	fields := map[string]any{
 		subFieldStatus:       data.Status,
 		subFieldExpiresAt:    data.ExpiresAt.Unix(),
 		subFieldDailyUsage:   data.DailyUsage,

backend/internal/repository/claude_oauth_service.go

@@ -64,7 +64,7 @@ func (s *claudeOAuthService) GetAuthorizationCode(ctx context.Context, sessionKe
 
 	authURL := fmt.Sprintf("https://claude.ai/v1/oauth/%s/authorize", orgUUID)
 
-	reqBody := map[string]interface{}{
+	reqBody := map[string]any{
 		"response_type":         "code",
 		"client_id":             oauth.ClientID,
 		"organization_uuid":     orgUUID,
@@ -155,7 +155,7 @@ func (s *claudeOAuthService) ExchangeCodeForToken(ctx context.Context, code, cod
 		}
 	}
 
-	reqBody := map[string]interface{}{
+	reqBody := map[string]any{
 		"code":          authCode,
 		"grant_type":    "authorization_code",
 		"client_id":     oauth.ClientID,

backend/internal/repository/redeem_code_repo.go

@@ -99,7 +99,7 @@ func (r *RedeemCodeRepository) Use(ctx context.Context, id, userID int64) error
 	now := time.Now()
 	result := r.db.WithContext(ctx).Model(&model.RedeemCode{}).
 		Where("id = ? AND status = ?", id, model.StatusUnused).
-		Updates(map[string]interface{}{
+		Updates(map[string]any{
 			"status":  model.StatusUsed,
 			"used_by": userID,
 			"used_at": now,

backend/internal/repository/user_subscription_repo.go

@@ -185,7 +185,7 @@ func (r *UserSubscriptionRepository) List(ctx context.Context, params pagination
 func (r *UserSubscriptionRepository) IncrementUsage(ctx context.Context, id int64, costUSD float64) error {
 	return r.db.WithContext(ctx).Model(&model.UserSubscription{}).
 		Where("id = ?", id).
-		Updates(map[string]interface{}{
+		Updates(map[string]any{
 			"daily_usage_usd":   gorm.Expr("daily_usage_usd + ?", costUSD),
 			"weekly_usage_usd":  gorm.Expr("weekly_usage_usd + ?", costUSD),
 			"monthly_usage_usd": gorm.Expr("monthly_usage_usd + ?", costUSD),
@@ -197,7 +197,7 @@ func (r *UserSubscriptionRepository) IncrementUsage(ctx context.Context, id int6
 func (r *UserSubscriptionRepository) ResetDailyUsage(ctx context.Context, id int64, newWindowStart time.Time) error {
 	return r.db.WithContext(ctx).Model(&model.UserSubscription{}).
 		Where("id = ?", id).
-		Updates(map[string]interface{}{
+		Updates(map[string]any{
 			"daily_usage_usd":    0,
 			"daily_window_start": newWindowStart,
 			"updated_at":         time.Now(),
@@ -208,7 +208,7 @@ func (r *UserSubscriptionRepository) ResetDailyUsage(ctx context.Context, id int
 func (r *UserSubscriptionRepository) ResetWeeklyUsage(ctx context.Context, id int64, newWindowStart time.Time) error {
 	return r.db.WithContext(ctx).Model(&model.UserSubscription{}).
 		Where("id = ?", id).
-		Updates(map[string]interface{}{
+		Updates(map[string]any{
 			"weekly_usage_usd":    0,
 			"weekly_window_start": newWindowStart,
 			"updated_at":          time.Now(),
@@ -219,7 +219,7 @@ func (r *UserSubscriptionRepository) ResetWeeklyUsage(ctx context.Context, id in
 func (r *UserSubscriptionRepository) ResetMonthlyUsage(ctx context.Context, id int64, newWindowStart time.Time) error {
 	return r.db.WithContext(ctx).Model(&model.UserSubscription{}).
 		Where("id = ?", id).
-		Updates(map[string]interface{}{
+		Updates(map[string]any{
 			"monthly_usage_usd":    0,
 			"monthly_window_start": newWindowStart,
 			"updated_at":           time.Now(),
@@ -230,7 +230,7 @@ func (r *UserSubscriptionRepository) ResetMonthlyUsage(ctx context.Context, id i
 func (r *UserSubscriptionRepository) ActivateWindows(ctx context.Context, id int64, activateTime time.Time) error {
 	return r.db.WithContext(ctx).Model(&model.UserSubscription{}).
 		Where("id = ?", id).
-		Updates(map[string]interface{}{
+		Updates(map[string]any{
 			"daily_window_start":   activateTime,
 			"weekly_window_start":  activateTime,
 			"monthly_window_start": activateTime,
@@ -242,7 +242,7 @@ func (r *UserSubscriptionRepository) ActivateWindows(ctx context.Context, id int
 func (r *UserSubscriptionRepository) UpdateStatus(ctx context.Context, id int64, status string) error {
 	return r.db.WithContext(ctx).Model(&model.UserSubscription{}).
 		Where("id = ?", id).
-		Updates(map[string]interface{}{
+		Updates(map[string]any{
 			"status":     status,
 			"updated_at": time.Now(),
 		}).Error
@@ -252,7 +252,7 @@ func (r *UserSubscriptionRepository) UpdateStatus(ctx context.Context, id int64,
 func (r *UserSubscriptionRepository) ExtendExpiry(ctx context.Context, id int64, newExpiresAt time.Time) error {
 	return r.db.WithContext(ctx).Model(&model.UserSubscription{}).
 		Where("id = ?", id).
-		Updates(map[string]interface{}{
+		Updates(map[string]any{
 			"expires_at": newExpiresAt,
 			"updated_at": time.Now(),
 		}).Error
@@ -262,7 +262,7 @@ func (r *UserSubscriptionRepository) ExtendExpiry(ctx context.Context, id int64,
 func (r *UserSubscriptionRepository) UpdateNotes(ctx context.Context, id int64, notes string) error {
 	return r.db.WithContext(ctx).Model(&model.UserSubscription{}).
 		Where("id = ?", id).
-		Updates(map[string]interface{}{
+		Updates(map[string]any{
 			"notes":      notes,
 			"updated_at": time.Now(),
 		}).Error
@@ -281,7 +281,7 @@ func (r *UserSubscriptionRepository) ListExpired(ctx context.Context) ([]model.U
 func (r *UserSubscriptionRepository) BatchUpdateExpiredStatus(ctx context.Context) (int64, error) {
 	result := r.db.WithContext(ctx).Model(&model.UserSubscription{}).
 		Where("status = ? AND expires_at <= ?", model.SubscriptionStatusActive, time.Now()).
-		Updates(map[string]interface{}{
+		Updates(map[string]any{
 			"status":     model.SubscriptionStatusExpired,
 			"updated_at": time.Now(),
 		})

backend/internal/service/account_service.go

@@ -17,27 +17,27 @@ var (
 
 // CreateAccountRequest 创建账号请求
 type CreateAccountRequest struct {
-	Name        string                 `json:"name"`
-	Platform    string                 `json:"platform"`
-	Type        string                 `json:"type"`
-	Credentials map[string]interface{} `json:"credentials"`
-	Extra       map[string]interface{} `json:"extra"`
-	ProxyID     *int64                 `json:"proxy_id"`
-	Concurrency int                    `json:"concurrency"`
-	Priority    int                    `json:"priority"`
-	GroupIDs    []int64                `json:"group_ids"`
+	Name        string         `json:"name"`
+	Platform    string         `json:"platform"`
+	Type        string         `json:"type"`
+	Credentials map[string]any `json:"credentials"`
+	Extra       map[string]any `json:"extra"`
+	ProxyID     *int64         `json:"proxy_id"`
+	Concurrency int            `json:"concurrency"`
+	Priority    int            `json:"priority"`
+	GroupIDs    []int64        `json:"group_ids"`
 }
 
 // UpdateAccountRequest 更新账号请求
 type UpdateAccountRequest struct {
-	Name        *string                 `json:"name"`
-	Credentials *map[string]interface{} `json:"credentials"`
-	Extra       *map[string]interface{} `json:"extra"`
-	ProxyID     *int64                  `json:"proxy_id"`
-	Concurrency *int                    `json:"concurrency"`
-	Priority    *int                    `json:"priority"`
-	Status      *string                 `json:"status"`
-	GroupIDs    *[]int64                `json:"group_ids"`
+	Name        *string         `json:"name"`
+	Credentials *map[string]any `json:"credentials"`
+	Extra       *map[string]any `json:"extra"`
+	ProxyID     *int64          `json:"proxy_id"`
+	Concurrency *int            `json:"concurrency"`
+	Priority    *int            `json:"priority"`
+	Status      *string         `json:"status"`
+	GroupIDs    *[]int64        `json:"group_ids"`
 }
 
 // AccountService 账号管理服务

backend/internal/service/account_test_service.go

@@ -62,18 +62,18 @@ func generateSessionString() (string, error) {
 }
 
 // createTestPayload creates a Claude Code style test request payload
-func createTestPayload(modelID string) (map[string]interface{}, error) {
+func createTestPayload(modelID string) (map[string]any, error) {
 	sessionID, err := generateSessionString()
 	if err != nil {
 		return nil, err
 	}
 
-	return map[string]interface{}{
+	return map[string]any{
 		"model": modelID,
-		"messages": []map[string]interface{}{
+		"messages": []map[string]any{
 			{
 				"role": "user",
-				"content": []map[string]interface{}{
+				"content": []map[string]any{
 					{
 						"type": "text",
 						"text": "hi",
@@ -84,7 +84,7 @@ func createTestPayload(modelID string) (map[string]interface{}, error) {
 				},
 			},
 		},
-		"system": []map[string]interface{}{
+		"system": []map[string]any{
 			{
 				"type": "text",
 				"text": "You are Claude Code, Anthropic's official CLI for Claude.",
@@ -262,7 +262,7 @@ func (s *AccountTestService) processStream(c *gin.Context, body io.Reader) error
 			return nil
 		}
 
-		var data map[string]interface{}
+		var data map[string]any
 		if err := json.Unmarshal([]byte(jsonStr), &data); err != nil {
 			continue
 		}
@@ -271,7 +271,7 @@ func (s *AccountTestService) processStream(c *gin.Context, body io.Reader) error
 
 		switch eventType {
 		case "content_block_delta":
-			if delta, ok := data["delta"].(map[string]interface{}); ok {
+			if delta, ok := data["delta"].(map[string]any); ok {
 				if text, ok := delta["text"].(string); ok {
 					s.sendEvent(c, TestEvent{Type: "content", Text: text})
 				}
@@ -281,7 +281,7 @@ func (s *AccountTestService) processStream(c *gin.Context, body io.Reader) error
 			return nil
 		case "error":
 			errorMsg := "Unknown error"
-			if errData, ok := data["error"].(map[string]interface{}); ok {
+			if errData, ok := data["error"].(map[string]any); ok {
 				if msg, ok := errData["message"].(string); ok {
 					errorMsg = msg
 				}

backend/internal/service/admin_service.go

@@ -24,7 +24,7 @@ type AdminService interface {
 	DeleteUser(ctx context.Context, id int64) error
 	UpdateUserBalance(ctx context.Context, userID int64, balance float64, operation string) (*model.User, error)
 	GetUserAPIKeys(ctx context.Context, userID int64, page, pageSize int) ([]model.ApiKey, int64, error)
-	GetUserUsageStats(ctx context.Context, userID int64, period string) (interface{}, error)
+	GetUserUsageStats(ctx context.Context, userID int64, period string) (any, error)
 
 	// Group management
 	ListGroups(ctx context.Context, page, pageSize int, platform, status string, isExclusive *bool) ([]model.Group, int64, error)
@@ -114,8 +114,8 @@ type CreateAccountInput struct {
 	Name        string
 	Platform    string
 	Type        string
-	Credentials map[string]interface{}
-	Extra       map[string]interface{}
+	Credentials map[string]any
+	Extra       map[string]any
 	ProxyID     *int64
 	Concurrency int
 	Priority    int
@@ -125,8 +125,8 @@ type CreateAccountInput struct {
 type UpdateAccountInput struct {
 	Name        string
 	Type        string // Account type: oauth, setup-token, apikey
-	Credentials map[string]interface{}
-	Extra       map[string]interface{}
+	Credentials map[string]any
+	Extra       map[string]any
 	ProxyID     *int64
 	Concurrency *int // 使用指针区分"未提供"和"设置为0"
 	Priority    *int // 使用指针区分"未提供"和"设置为0"
@@ -411,9 +411,9 @@ func (s *adminServiceImpl) GetUserAPIKeys(ctx context.Context, userID int64, pag
 	return keys, result.Total, nil
 }
 
-func (s *adminServiceImpl) GetUserUsageStats(ctx context.Context, userID int64, period string) (interface{}, error) {
+func (s *adminServiceImpl) GetUserUsageStats(ctx context.Context, userID int64, period string) (any, error) {
 	// Return mock data for now
-	return map[string]interface{}{
+	return map[string]any{
 		"period":          period,
 		"total_requests":  0,
 		"total_cost":      0.0,

backend/internal/service/auth_service.go

@@ -278,7 +278,7 @@ func (s *AuthService) Login(ctx context.Context, email, password string) (string
 
 // ValidateToken 验证JWT token并返回用户声明
 func (s *AuthService) ValidateToken(tokenString string) (*JWTClaims, error) {
-	token, err := jwt.ParseWithClaims(tokenString, &JWTClaims{}, func(token *jwt.Token) (interface{}, error) {
+	token, err := jwt.ParseWithClaims(tokenString, &JWTClaims{}, func(token *jwt.Token) (any, error) {
 		// 验证签名方法
 		if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
 			return nil, fmt.Errorf("unexpected signing method: %v", token.Header["alg"])

backend/internal/service/billing_service.go

@@ -259,11 +259,11 @@ func (s *BillingService) GetEstimatedCost(model string, estimatedInputTokens, es
 }
 
 // GetPricingServiceStatus 获取价格服务状态
-func (s *BillingService) GetPricingServiceStatus() map[string]interface{} {
+func (s *BillingService) GetPricingServiceStatus() map[string]any {
 	if s.pricingService != nil {
 		return s.pricingService.GetStatus()
 	}
-	return map[string]interface{}{
+	return map[string]any{
 		"model_count":  len(s.fallbackPrices),
 		"last_updated": "using fallback",
 		"local_hash":   "N/A",

backend/internal/service/gateway_service.go

@@ -122,13 +122,13 @@ func NewGatewayService(
 
 // GenerateSessionHash 从请求体计算粘性会话hash
 func (s *GatewayService) GenerateSessionHash(body []byte) string {
-	var req map[string]interface{}
+	var req map[string]any
 	if err := json.Unmarshal(body, &req); err != nil {
 		return ""
 	}
 
 	// 1. 最高优先级：从metadata.user_id提取session_xxx
-	if metadata, ok := req["metadata"].(map[string]interface{}); ok {
+	if metadata, ok := req["metadata"].(map[string]any); ok {
 		if userID, ok := metadata["user_id"].(string); ok {
 			re := regexp.MustCompile(`session_([a-f0-9-]{36})`)
 			if match := re.FindStringSubmatch(userID); len(match) > 1 {
@@ -152,8 +152,8 @@ func (s *GatewayService) GenerateSessionHash(body []byte) string {
 	}
 
 	// 4. 最后fallback: 使用第一条消息
-	if messages, ok := req["messages"].([]interface{}); ok && len(messages) > 0 {
-		if firstMsg, ok := messages[0].(map[string]interface{}); ok {
+	if messages, ok := req["messages"].([]any); ok && len(messages) > 0 {
+		if firstMsg, ok := messages[0].(map[string]any); ok {
 			msgText := s.extractTextFromContent(firstMsg["content"])
 			if msgText != "" {
 				return s.hashContent(msgText)
@@ -164,14 +164,14 @@ func (s *GatewayService) GenerateSessionHash(body []byte) string {
 	return ""
 }
 
-func (s *GatewayService) extractCacheableContent(req map[string]interface{}) string {
+func (s *GatewayService) extractCacheableContent(req map[string]any) string {
 	var content string
 
 	// 检查system中的cacheable内容
-	if system, ok := req["system"].([]interface{}); ok {
+	if system, ok := req["system"].([]any); ok {
 		for _, part := range system {
-			if partMap, ok := part.(map[string]interface{}); ok {
-				if cc, ok := partMap["cache_control"].(map[string]interface{}); ok {
+			if partMap, ok := part.(map[string]any); ok {
+				if cc, ok := partMap["cache_control"].(map[string]any); ok {
 					if cc["type"] == "ephemeral" {
 						if text, ok := partMap["text"].(string); ok {
 							content += text
@@ -183,13 +183,13 @@ func (s *GatewayService) extractCacheableContent(req map[string]interface{}) str
 	}
 
 	// 检查messages中的cacheable内容
-	if messages, ok := req["messages"].([]interface{}); ok {
+	if messages, ok := req["messages"].([]any); ok {
 		for _, msg := range messages {
-			if msgMap, ok := msg.(map[string]interface{}); ok {
-				if msgContent, ok := msgMap["content"].([]interface{}); ok {
+			if msgMap, ok := msg.(map[string]any); ok {
+				if msgContent, ok := msgMap["content"].([]any); ok {
 					for _, part := range msgContent {
-						if partMap, ok := part.(map[string]interface{}); ok {
-							if cc, ok := partMap["cache_control"].(map[string]interface{}); ok {
+						if partMap, ok := part.(map[string]any); ok {
+							if cc, ok := partMap["cache_control"].(map[string]any); ok {
 								if cc["type"] == "ephemeral" {
 									// 找到cacheable内容，提取第一条消息的文本
 									return s.extractTextFromContent(msgMap["content"])
@@ -205,14 +205,14 @@ func (s *GatewayService) extractCacheableContent(req map[string]interface{}) str
 	return content
 }
 
-func (s *GatewayService) extractTextFromSystem(system interface{}) string {
+func (s *GatewayService) extractTextFromSystem(system any) string {
 	switch v := system.(type) {
 	case string:
 		return v
-	case []interface{}:
+	case []any:
 		var texts []string
 		for _, part := range v {
-			if partMap, ok := part.(map[string]interface{}); ok {
+			if partMap, ok := part.(map[string]any); ok {
 				if text, ok := partMap["text"].(string); ok {
 					texts = append(texts, text)
 				}
@@ -223,14 +223,14 @@ func (s *GatewayService) extractTextFromSystem(system interface{}) string {
 	return ""
 }
 
-func (s *GatewayService) extractTextFromContent(content interface{}) string {
+func (s *GatewayService) extractTextFromContent(content any) string {
 	switch v := content.(type) {
 	case string:
 		return v
-	case []interface{}:
+	case []any:
 		var texts []string
 		for _, part := range v {
-			if partMap, ok := part.(map[string]interface{}); ok {
+			if partMap, ok := part.(map[string]any); ok {
 				if partMap["type"] == "text" {
 					if text, ok := partMap["text"].(string); ok {
 						texts = append(texts, text)
@@ -250,7 +250,7 @@ func (s *GatewayService) hashContent(content string) string {
 
 // replaceModelInBody 替换请求体中的model字段
 func (s *GatewayService) replaceModelInBody(body []byte, newModel string) []byte {
-	var req map[string]interface{}
+	var req map[string]any
 	if err := json.Unmarshal(body, &req); err != nil {
 		return body
 	}
@@ -558,7 +558,7 @@ func (s *GatewayService) getBetaHeader(body []byte, clientBetaHeader string) str
 
 	// 客户端没传，根据模型生成
 	var modelID string
-	var reqMap map[string]interface{}
+	var reqMap map[string]any
 	if json.Unmarshal(body, &reqMap) == nil {
 		if m, ok := reqMap["model"].(string); ok {
 			modelID = m
@@ -710,7 +710,7 @@ func (s *GatewayService) replaceModelInSSELine(line, fromModel, toModel string)
 		return line
 	}
 
-	var event map[string]interface{}
+	var event map[string]any
 	if err := json.Unmarshal([]byte(data), &event); err != nil {
 		return line
 	}
@@ -720,7 +720,7 @@ func (s *GatewayService) replaceModelInSSELine(line, fromModel, toModel string)
 		return line
 	}
 
-	msg, ok := event["message"].(map[string]interface{})
+	msg, ok := event["message"].(map[string]any)
 	if !ok {
 		return line
 	}
@@ -802,7 +802,7 @@ func (s *GatewayService) handleNonStreamingResponse(ctx context.Context, resp *h
 
 // replaceModelInResponseBody 替换响应体中的model字段
 func (s *GatewayService) replaceModelInResponseBody(body []byte, fromModel, toModel string) []byte {
-	var resp map[string]interface{}
+	var resp map[string]any
 	if err := json.Unmarshal(body, &resp); err != nil {
 		return body
 	}

backend/internal/service/group_service.go

@@ -167,7 +167,7 @@ func (s *GroupService) Delete(ctx context.Context, id int64) error {
 }
 
 // GetStats 获取分组统计信息
-func (s *GroupService) GetStats(ctx context.Context, id int64) (map[string]interface{}, error) {
+func (s *GroupService) GetStats(ctx context.Context, id int64) (map[string]any, error) {
 	group, err := s.groupRepo.GetByID(ctx, id)
 	if err != nil {
 		if errors.Is(err, gorm.ErrRecordNotFound) {
@@ -182,7 +182,7 @@ func (s *GroupService) GetStats(ctx context.Context, id int64) (map[string]inter
 		return nil, fmt.Errorf("get account count: %w", err)
 	}
 
-	stats := map[string]interface{}{
+	stats := map[string]any{
 		"id":              group.ID,
 		"name":            group.Name,
 		"rate_multiplier": group.RateMultiplier,

backend/internal/service/identity_service.go

@@ -149,12 +149,12 @@ func (s *IdentityService) RewriteUserID(body []byte, accountID int64, accountUUI
 	}
 
 	// 解析JSON
-	var reqMap map[string]interface{}
+	var reqMap map[string]any
 	if err := json.Unmarshal(body, &reqMap); err != nil {
 		return body, nil
 	}
 
-	metadata, ok := reqMap["metadata"].(map[string]interface{})
+	metadata, ok := reqMap["metadata"].(map[string]any)
 	if !ok {
 		return body, nil
 	}