Merge pull request #2842 from QuantumNous/feat/backend-i18n

feat: backend i18n

common/gin.go

@@ -218,6 +218,39 @@ func ApiSuccess(c *gin.Context, data any) {
 	})
 }
 
+// ApiErrorI18n returns a translated error message based on the user's language preference
+// key is the i18n message key, args is optional template data
+func ApiErrorI18n(c *gin.Context, key string, args ...map[string]any) {
+	msg := TranslateMessage(c, key, args...)
+	c.JSON(http.StatusOK, gin.H{
+		"success": false,
+		"message": msg,
+	})
+}
+
+// ApiSuccessI18n returns a translated success message based on the user's language preference
+func ApiSuccessI18n(c *gin.Context, key string, data any, args ...map[string]any) {
+	msg := TranslateMessage(c, key, args...)
+	c.JSON(http.StatusOK, gin.H{
+		"success": true,
+		"message": msg,
+		"data":    data,
+	})
+}
+
+// TranslateMessage is a helper function that calls i18n.T
+// This function is defined here to avoid circular imports
+// The actual implementation will be set during init
+var TranslateMessage func(c *gin.Context, key string, args ...map[string]any) string
+
+func init() {
+	// Default implementation that returns the key as-is
+	// This will be replaced by i18n.T during i18n initialization
+	TranslateMessage = func(c *gin.Context, key string, args ...map[string]any) string {
+		return key
+	}
+}
+
 func ParseMultipartFormReusable(c *gin.Context) (*multipart.Form, error) {
 	requestBody, err := GetRequestBody(c)
 	if err != nil {

constant/context_key.go

@@ -62,4 +62,7 @@ const (
 	// ContextKeyAdminRejectReason stores an admin-only reject/block reason extracted from upstream responses.
 	// It is not returned to end users, but can be persisted into consume/error logs for debugging.
 	ContextKeyAdminRejectReason ContextKey = "admin_reject_reason"
+
+	// ContextKeyLanguage stores the user's language preference for i18n
+	ContextKeyLanguage ContextKey = "language"
 )

controller/redemption.go

@@ -1,12 +1,12 @@
 package controller
 
 import (
-	"errors"
 	"net/http"
 	"strconv"
 	"unicode/utf8"
 
 	"github.com/QuantumNous/new-api/common"
+	"github.com/QuantumNous/new-api/i18n"
 	"github.com/QuantumNous/new-api/model"
 
 	"github.com/gin-gonic/gin"
@@ -66,28 +66,19 @@ func AddRedemption(c *gin.Context) {
 		return
 	}
 	if utf8.RuneCountInString(redemption.Name) == 0 || utf8.RuneCountInString(redemption.Name) > 20 {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "兑换码名称长度必须在1-20之间",
-		})
+		common.ApiErrorI18n(c, i18n.MsgRedemptionNameLength)
 		return
 	}
 	if redemption.Count <= 0 {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "兑换码个数必须大于0",
-		})
+		common.ApiErrorI18n(c, i18n.MsgRedemptionCountPositive)
 		return
 	}
 	if redemption.Count > 100 {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "一次兑换码批量生成的个数不能大于 100",
-		})
+		common.ApiErrorI18n(c, i18n.MsgRedemptionCountMax)
 		return
 	}
-	if err := validateExpiredTime(redemption.ExpiredTime); err != nil {
-		c.JSON(http.StatusOK, gin.H{"success": false, "message": err.Error()})
+	if valid, msg := validateExpiredTime(c, redemption.ExpiredTime); !valid {
+		c.JSON(http.StatusOK, gin.H{"success": false, "message": msg})
 		return
 	}
 	var keys []string
@@ -106,7 +97,7 @@ func AddRedemption(c *gin.Context) {
 			common.SysError("failed to insert redemption: " + err.Error())
 			c.JSON(http.StatusOK, gin.H{
 				"success": false,
-				"message": "创建兑换码失败，请稍后重试",
+				"message": i18n.T(c, i18n.MsgRedemptionCreateFailed),
 				"data":    keys,
 			})
 			return
@@ -149,8 +140,8 @@ func UpdateRedemption(c *gin.Context) {
 		return
 	}
 	if statusOnly == "" {
-		if err := validateExpiredTime(redemption.ExpiredTime); err != nil {
-			c.JSON(http.StatusOK, gin.H{"success": false, "message": err.Error()})
+		if valid, msg := validateExpiredTime(c, redemption.ExpiredTime); !valid {
+			c.JSON(http.StatusOK, gin.H{"success": false, "message": msg})
 			return
 		}
 		// If you add more fields, please also update redemption.Update()
@@ -188,9 +179,9 @@ func DeleteInvalidRedemption(c *gin.Context) {
 	return
 }
 
-func validateExpiredTime(expired int64) error {
+func validateExpiredTime(c *gin.Context, expired int64) (bool, string) {
 	if expired != 0 && expired < common.GetTimestamp() {
-		return errors.New("过期时间不能早于当前时间")
+		return false, i18n.T(c, i18n.MsgRedemptionExpireTimeInvalid)
 	}
-	return nil
+	return true, ""
 }

controller/token.go

@@ -1,12 +1,12 @@
 package controller
 
 import (
-	"fmt"
 	"net/http"
 	"strconv"
 	"strings"
 
 	"github.com/QuantumNous/new-api/common"
+	"github.com/QuantumNous/new-api/i18n"
 	"github.com/QuantumNous/new-api/model"
 
 	"github.com/gin-gonic/gin"
@@ -108,10 +108,7 @@ func GetTokenUsage(c *gin.Context) {
 	token, err := model.GetTokenByKey(strings.TrimPrefix(tokenKey, "sk-"), false)
 	if err != nil {
 		common.SysError("failed to get token by key: " + err.Error())
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "获取令牌信息失败，请稍后重试",
-		})
+		common.ApiErrorI18n(c, i18n.MsgTokenGetInfoFailed)
 		return
 	}
 
@@ -145,36 +142,24 @@ func AddToken(c *gin.Context) {
 		return
 	}
 	if len(token.Name) > 50 {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "令牌名称过长",
-		})
+		common.ApiErrorI18n(c, i18n.MsgTokenNameTooLong)
 		return
 	}
 	// 非无限额度时，检查额度值是否超出有效范围
 	if !token.UnlimitedQuota {
 		if token.RemainQuota < 0 {
-			c.JSON(http.StatusOK, gin.H{
-				"success": false,
-				"message": "额度值不能为负数",
-			})
+			common.ApiErrorI18n(c, i18n.MsgTokenQuotaNegative)
 			return
 		}
 		maxQuotaValue := int((1000000000 * common.QuotaPerUnit))
 		if token.RemainQuota > maxQuotaValue {
-			c.JSON(http.StatusOK, gin.H{
-				"success": false,
-				"message": fmt.Sprintf("额度值超出有效范围，最大值为 %d", maxQuotaValue),
-			})
+			common.ApiErrorI18n(c, i18n.MsgTokenQuotaExceedMax, map[string]any{"Max": maxQuotaValue})
 			return
 		}
 	}
 	key, err := common.GenerateKey()
 	if err != nil {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "生成令牌失败",
-		})
+		common.ApiErrorI18n(c, i18n.MsgTokenGenerateFailed)
 		common.SysLog("failed to generate token key: " + err.Error())
 		return
 	}
@@ -230,26 +215,17 @@ func UpdateToken(c *gin.Context) {
 		return
 	}
 	if len(token.Name) > 50 {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "令牌名称过长",
-		})
+		common.ApiErrorI18n(c, i18n.MsgTokenNameTooLong)
 		return
 	}
 	if !token.UnlimitedQuota {
 		if token.RemainQuota < 0 {
-			c.JSON(http.StatusOK, gin.H{
-				"success": false,
-				"message": "额度值不能为负数",
-			})
+			common.ApiErrorI18n(c, i18n.MsgTokenQuotaNegative)
 			return
 		}
 		maxQuotaValue := int((1000000000 * common.QuotaPerUnit))
 		if token.RemainQuota > maxQuotaValue {
-			c.JSON(http.StatusOK, gin.H{
-				"success": false,
-				"message": fmt.Sprintf("额度值超出有效范围，最大值为 %d", maxQuotaValue),
-			})
+			common.ApiErrorI18n(c, i18n.MsgTokenQuotaExceedMax, map[string]any{"Max": maxQuotaValue})
 			return
 		}
 	}
@@ -260,17 +236,11 @@ func UpdateToken(c *gin.Context) {
 	}
 	if token.Status == common.TokenStatusEnabled {
 		if cleanToken.Status == common.TokenStatusExpired && cleanToken.ExpiredTime <= common.GetTimestamp() && cleanToken.ExpiredTime != -1 {
-			c.JSON(http.StatusOK, gin.H{
-				"success": false,
-				"message": "令牌已过期，无法启用，请先修改令牌过期时间，或者设置为永不过期",
-			})
+			common.ApiErrorI18n(c, i18n.MsgTokenExpiredCannotEnable)
 			return
 		}
 		if cleanToken.Status == common.TokenStatusExhausted && cleanToken.RemainQuota <= 0 && !cleanToken.UnlimitedQuota {
-			c.JSON(http.StatusOK, gin.H{
-				"success": false,
-				"message": "令牌可用额度已用尽，无法启用，请先修改令牌剩余额度，或者设置为无限额度",
-			})
+			common.ApiErrorI18n(c, i18n.MsgTokenExhaustedCannotEable)
 			return
 		}
 	}
@@ -307,10 +277,7 @@ type TokenBatch struct {
 func DeleteTokenBatch(c *gin.Context) {
 	tokenBatch := TokenBatch{}
 	if err := c.ShouldBindJSON(&tokenBatch); err != nil || len(tokenBatch.Ids) == 0 {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "参数错误",
-		})
+		common.ApiErrorI18n(c, i18n.MsgInvalidParams)
 		return
 	}
 	userId := c.GetInt("id")

controller/user.go

@@ -2,6 +2,7 @@ package controller
 
 import (
 	"encoding/json"
+	"errors"
 	"fmt"
 	"net/http"
 	"net/url"
@@ -11,6 +12,7 @@ import (
 
 	"github.com/QuantumNous/new-api/common"
 	"github.com/QuantumNous/new-api/dto"
+	"github.com/QuantumNous/new-api/i18n"
 	"github.com/QuantumNous/new-api/logger"
 	"github.com/QuantumNous/new-api/model"
 	"github.com/QuantumNous/new-api/service"
@@ -29,28 +31,19 @@ type LoginRequest struct {
 
 func Login(c *gin.Context) {
 	if !common.PasswordLoginEnabled {
-		c.JSON(http.StatusOK, gin.H{
-			"message": "管理员关闭了密码登录",
-			"success": false,
-		})
+		common.ApiErrorI18n(c, i18n.MsgUserPasswordLoginDisabled)
 		return
 	}
 	var loginRequest LoginRequest
 	err := json.NewDecoder(c.Request.Body).Decode(&loginRequest)
 	if err != nil {
-		c.JSON(http.StatusOK, gin.H{
-			"message": "无效的参数",
-			"success": false,
-		})
+		common.ApiErrorI18n(c, i18n.MsgInvalidParams)
 		return
 	}
 	username := loginRequest.Username
 	password := loginRequest.Password
 	if username == "" || password == "" {
-		c.JSON(http.StatusOK, gin.H{
-			"message": "无效的参数",
-			"success": false,
-		})
+		common.ApiErrorI18n(c, i18n.MsgInvalidParams)
 		return
 	}
 	user := model.User{
@@ -74,15 +67,12 @@ func Login(c *gin.Context) {
 		session.Set("pending_user_id", user.Id)
 		err := session.Save()
 		if err != nil {
-			c.JSON(http.StatusOK, gin.H{
-				"message": "无法保存会话信息，请重试",
-				"success": false,
-			})
+			common.ApiErrorI18n(c, i18n.MsgUserSessionSaveFailed)
 			return
 		}
 
 		c.JSON(http.StatusOK, gin.H{
-			"message": "请输入两步验证码",
+			"message": i18n.T(c, i18n.MsgUserRequire2FA),
 			"success": true,
 			"data": map[string]interface{}{
 				"require_2fa": true,
@@ -104,10 +94,7 @@ func setupLogin(user *model.User, c *gin.Context) {
 	session.Set("group", user.Group)
 	err := session.Save()
 	if err != nil {
-		c.JSON(http.StatusOK, gin.H{
-			"message": "无法保存会话信息，请重试",
-			"success": false,
-		})
+		common.ApiErrorI18n(c, i18n.MsgUserSessionSaveFailed)
 		return
 	}
 	c.JSON(http.StatusOK, gin.H{
@@ -143,65 +130,41 @@ func Logout(c *gin.Context) {
 
 func Register(c *gin.Context) {
 	if !common.RegisterEnabled {
-		c.JSON(http.StatusOK, gin.H{
-			"message": "管理员关闭了新用户注册",
-			"success": false,
-		})
+		common.ApiErrorI18n(c, i18n.MsgUserRegisterDisabled)
 		return
 	}
 	if !common.PasswordRegisterEnabled {
-		c.JSON(http.StatusOK, gin.H{
-			"message": "管理员关闭了通过密码进行注册，请使用第三方账户验证的形式进行注册",
-			"success": false,
-		})
+		common.ApiErrorI18n(c, i18n.MsgUserPasswordRegisterDisabled)
 		return
 	}
 	var user model.User
 	err := json.NewDecoder(c.Request.Body).Decode(&user)
 	if err != nil {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "无效的参数",
-		})
+		common.ApiErrorI18n(c, i18n.MsgInvalidParams)
 		return
 	}
 	if err := common.Validate.Struct(&user); err != nil {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "输入不合法 " + err.Error(),
-		})
+		common.ApiErrorI18n(c, i18n.MsgUserInputInvalid, map[string]any{"Error": err.Error()})
 		return
 	}
 	if common.EmailVerificationEnabled {
 		if user.Email == "" || user.VerificationCode == "" {
-			c.JSON(http.StatusOK, gin.H{
-				"success": false,
-				"message": "管理员开启了邮箱验证，请输入邮箱地址和验证码",
-			})
+			common.ApiErrorI18n(c, i18n.MsgUserEmailVerificationRequired)
 			return
 		}
 		if !common.VerifyCodeWithKey(user.Email, user.VerificationCode, common.EmailVerificationPurpose) {
-			c.JSON(http.StatusOK, gin.H{
-				"success": false,
-				"message": "验证码错误或已过期",
-			})
+			common.ApiErrorI18n(c, i18n.MsgUserVerificationCodeError)
 			return
 		}
 	}
 	exist, err := model.CheckUserExistOrDeleted(user.Username, user.Email)
 	if err != nil {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "数据库错误，请稍后重试",
-		})
+		common.ApiErrorI18n(c, i18n.MsgDatabaseError)
 		common.SysLog(fmt.Sprintf("CheckUserExistOrDeleted error: %v", err))
 		return
 	}
 	if exist {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "用户名已存在，或已注销",
-		})
+		common.ApiErrorI18n(c, i18n.MsgUserExists)
 		return
 	}
 	affCode := user.AffCode // this code is the inviter's code, not the user's own code
@@ -224,20 +187,14 @@ func Register(c *gin.Context) {
 	// 获取插入后的用户ID
 	var insertedUser model.User
 	if err := model.DB.Where("username = ?", cleanUser.Username).First(&insertedUser).Error; err != nil {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "用户注册失败或用户ID获取失败",
-		})
+		common.ApiErrorI18n(c, i18n.MsgUserRegisterFailed)
 		return
 	}
 	// 生成默认令牌
 	if constant.GenerateDefaultToken {
 		key, err := common.GenerateKey()
 		if err != nil {
-			c.JSON(http.StatusOK, gin.H{
-				"success": false,
-				"message": "生成默认令牌失败",
-			})
+			common.ApiErrorI18n(c, i18n.MsgUserDefaultTokenFailed)
 			common.SysLog("failed to generate token key: " + err.Error())
 			return
 		}
@@ -257,10 +214,7 @@ func Register(c *gin.Context) {
 			token.Group = "auto"
 		}
 		if err := token.Insert(); err != nil {
-			c.JSON(http.StatusOK, gin.H{
-				"success": false,
-				"message": "创建默认令牌失败",
-			})
+			common.ApiErrorI18n(c, i18n.MsgCreateDefaultTokenErr)
 			return
 		}
 	}
@@ -316,10 +270,7 @@ func GetUser(c *gin.Context) {
 	}
 	myRole := c.GetInt("role")
 	if myRole <= user.Role && myRole != common.RoleRootUser {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "无权获取同级或更高等级用户的信息",
-		})
+		common.ApiErrorI18n(c, i18n.MsgUserNoPermissionSameLevel)
 		return
 	}
 	c.JSON(http.StatusOK, gin.H{
@@ -341,20 +292,14 @@ func GenerateAccessToken(c *gin.Context) {
 	randI := common.GetRandomInt(4)
 	key, err := common.GenerateRandomKey(29 + randI)
 	if err != nil {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "生成失败",
-		})
+		common.ApiErrorI18n(c, i18n.MsgGenerateFailed)
 		common.SysLog("failed to generate key: " + err.Error())
 		return
 	}
 	user.SetAccessToken(key)
 
 	if model.DB.Where("access_token = ?", user.AccessToken).First(user).RowsAffected != 0 {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "请重试，系统生成的 UUID 竟然重复了！",
-		})
+		common.ApiErrorI18n(c, i18n.MsgUuidDuplicate)
 		return
 	}
 
@@ -389,16 +334,10 @@ func TransferAffQuota(c *gin.Context) {
 	}
 	err = user.TransferAffQuotaToQuota(tran.Quota)
 	if err != nil {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "划转失败 " + err.Error(),
-		})
+		common.ApiErrorI18n(c, i18n.MsgUserTransferFailed, map[string]any{"Error": err.Error()})
 		return
 	}
-	c.JSON(http.StatusOK, gin.H{
-		"success": true,
-		"message": "划转成功",
-	})
+	common.ApiSuccessI18n(c, i18n.MsgUserTransferSuccess, nil)
 }
 
 func GetAffCode(c *gin.Context) {
@@ -601,20 +540,14 @@ func UpdateUser(c *gin.Context) {
 	var updatedUser model.User
 	err := json.NewDecoder(c.Request.Body).Decode(&updatedUser)
 	if err != nil || updatedUser.Id == 0 {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "无效的参数",
-		})
+		common.ApiErrorI18n(c, i18n.MsgInvalidParams)
 		return
 	}
 	if updatedUser.Password == "" {
 		updatedUser.Password = "$I_LOVE_U" // make Validator happy :)
 	}
 	if err := common.Validate.Struct(&updatedUser); err != nil {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "输入不合法 " + err.Error(),
-		})
+		common.ApiErrorI18n(c, i18n.MsgUserInputInvalid, map[string]any{"Error": err.Error()})
 		return
 	}
 	originUser, err := model.GetUserById(updatedUser.Id, false)
@@ -624,17 +557,11 @@ func UpdateUser(c *gin.Context) {
 	}
 	myRole := c.GetInt("role")
 	if myRole <= originUser.Role && myRole != common.RoleRootUser {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "无权更新同权限等级或更高权限等级的用户信息",
-		})
+		common.ApiErrorI18n(c, i18n.MsgUserNoPermissionHigherLevel)
 		return
 	}
 	if myRole <= updatedUser.Role && myRole != common.RoleRootUser {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "无权将其他用户权限等级提升到大于等于自己的权限等级",
-		})
+		common.ApiErrorI18n(c, i18n.MsgUserCannotCreateHigherLevel)
 		return
 	}
 	if updatedUser.Password == "$I_LOVE_U" {
@@ -659,15 +586,12 @@ func UpdateSelf(c *gin.Context) {
 	var requestData map[string]interface{}
 	err := json.NewDecoder(c.Request.Body).Decode(&requestData)
 	if err != nil {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "无效的参数",
-		})
+		common.ApiErrorI18n(c, i18n.MsgInvalidParams)
 		return
 	}
 
-	// 检查是否是sidebar_modules更新请求
-	if sidebarModules, exists := requestData["sidebar_modules"]; exists {
+	// 检查是否是用户设置更新请求 (sidebar_modules 或 language)
+	if sidebarModules, sidebarExists := requestData["sidebar_modules"]; sidebarExists {
 		userId := c.GetInt("id")
 		user, err := model.GetUserById(userId, false)
 		if err != nil {
@@ -686,17 +610,39 @@ func UpdateSelf(c *gin.Context) {
 		// 保存更新后的设置
 		user.SetSetting(currentSetting)
 		if err := user.Update(false); err != nil {
-			c.JSON(http.StatusOK, gin.H{
-				"success": false,
-				"message": "更新设置失败: " + err.Error(),
-			})
+			common.ApiErrorI18n(c, i18n.MsgUpdateFailed)
 			return
 		}
 
-		c.JSON(http.StatusOK, gin.H{
-			"success": true,
-			"message": "设置更新成功",
-		})
+		common.ApiSuccessI18n(c, i18n.MsgUpdateSuccess, nil)
+		return
+	}
+
+	// 检查是否是语言偏好更新请求
+	if language, langExists := requestData["language"]; langExists {
+		userId := c.GetInt("id")
+		user, err := model.GetUserById(userId, false)
+		if err != nil {
+			common.ApiError(c, err)
+			return
+		}
+
+		// 获取当前用户设置
+		currentSetting := user.GetSetting()
+
+		// 更新language字段
+		if langStr, ok := language.(string); ok {
+			currentSetting.Language = langStr
+		}
+
+		// 保存更新后的设置
+		user.SetSetting(currentSetting)
+		if err := user.Update(false); err != nil {
+			common.ApiErrorI18n(c, i18n.MsgUpdateFailed)
+			return
+		}
+
+		common.ApiSuccessI18n(c, i18n.MsgUpdateSuccess, nil)
 		return
 	}
 
@@ -704,18 +650,12 @@ func UpdateSelf(c *gin.Context) {
 	var user model.User
 	requestDataBytes, err := json.Marshal(requestData)
 	if err != nil {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "无效的参数",
-		})
+		common.ApiErrorI18n(c, i18n.MsgInvalidParams)
 		return
 	}
 	err = json.Unmarshal(requestDataBytes, &user)
 	if err != nil {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "无效的参数",
-		})
+		common.ApiErrorI18n(c, i18n.MsgInvalidParams)
 		return
 	}
 
@@ -723,10 +663,7 @@ func UpdateSelf(c *gin.Context) {
 		user.Password = "$I_LOVE_U" // make Validator happy :)
 	}
 	if err := common.Validate.Struct(&user); err != nil {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "输入不合法 " + err.Error(),
-		})
+		common.ApiErrorI18n(c, i18n.MsgInvalidInput)
 		return
 	}
 
@@ -790,10 +727,7 @@ func DeleteUser(c *gin.Context) {
 	}
 	myRole := c.GetInt("role")
 	if myRole <= originUser.Role {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "无权删除同权限等级或更高权限等级的用户",
-		})
+		common.ApiErrorI18n(c, i18n.MsgUserNoPermissionHigherLevel)
 		return
 	}
 	err = model.HardDeleteUserById(id)
@@ -811,10 +745,7 @@ func DeleteSelf(c *gin.Context) {
 	user, _ := model.GetUserById(id, false)
 
 	if user.Role == common.RoleRootUser {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "不能删除超级管理员账户",
-		})
+		common.ApiErrorI18n(c, i18n.MsgUserCannotDeleteRootUser)
 		return
 	}
 
@@ -835,17 +766,11 @@ func CreateUser(c *gin.Context) {
 	err := json.NewDecoder(c.Request.Body).Decode(&user)
 	user.Username = strings.TrimSpace(user.Username)
 	if err != nil || user.Username == "" || user.Password == "" {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "无效的参数",
-		})
+		common.ApiErrorI18n(c, i18n.MsgInvalidParams)
 		return
 	}
 	if err := common.Validate.Struct(&user); err != nil {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "输入不合法 " + err.Error(),
-		})
+		common.ApiErrorI18n(c, i18n.MsgUserInputInvalid, map[string]any{"Error": err.Error()})
 		return
 	}
 	if user.DisplayName == "" {
@@ -853,10 +778,7 @@ func CreateUser(c *gin.Context) {
 	}
 	myRole := c.GetInt("role")
 	if user.Role >= myRole {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "无法创建权限大于等于自己的用户",
-		})
+		common.ApiErrorI18n(c, i18n.MsgUserCannotCreateHigherLevel)
 		return
 	}
 	// Even for admin users, we cannot fully trust them!
@@ -889,10 +811,7 @@ func ManageUser(c *gin.Context) {
 	err := json.NewDecoder(c.Request.Body).Decode(&req)
 
 	if err != nil {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "无效的参数",
-		})
+		common.ApiErrorI18n(c, i18n.MsgInvalidParams)
 		return
 	}
 	user := model.User{
@@ -901,38 +820,26 @@ func ManageUser(c *gin.Context) {
 	// Fill attributes
 	model.DB.Unscoped().Where(&user).First(&user)
 	if user.Id == 0 {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "用户不存在",
-		})
+		common.ApiErrorI18n(c, i18n.MsgUserNotExists)
 		return
 	}
 	myRole := c.GetInt("role")
 	if myRole <= user.Role && myRole != common.RoleRootUser {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "无权更新同权限等级或更高权限等级的用户信息",
-		})
+		common.ApiErrorI18n(c, i18n.MsgUserNoPermissionHigherLevel)
 		return
 	}
 	switch req.Action {
 	case "disable":
 		user.Status = common.UserStatusDisabled
 		if user.Role == common.RoleRootUser {
-			c.JSON(http.StatusOK, gin.H{
-				"success": false,
-				"message": "无法禁用超级管理员用户",
-			})
+			common.ApiErrorI18n(c, i18n.MsgUserCannotDisableRootUser)
 			return
 		}
 	case "enable":
 		user.Status = common.UserStatusEnabled
 	case "delete":
 		if user.Role == common.RoleRootUser {
-			c.JSON(http.StatusOK, gin.H{
-				"success": false,
-				"message": "无法删除超级管理员用户",
-			})
+			common.ApiErrorI18n(c, i18n.MsgUserCannotDeleteRootUser)
 			return
 		}
 		if err := user.Delete(); err != nil {
@@ -944,33 +851,21 @@ func ManageUser(c *gin.Context) {
 		}
 	case "promote":
 		if myRole != common.RoleRootUser {
-			c.JSON(http.StatusOK, gin.H{
-				"success": false,
-				"message": "普通管理员用户无法提升其他用户为管理员",
-			})
+			common.ApiErrorI18n(c, i18n.MsgUserAdminCannotPromote)
 			return
 		}
 		if user.Role >= common.RoleAdminUser {
-			c.JSON(http.StatusOK, gin.H{
-				"success": false,
-				"message": "该用户已经是管理员",
-			})
+			common.ApiErrorI18n(c, i18n.MsgUserAlreadyAdmin)
 			return
 		}
 		user.Role = common.RoleAdminUser
 	case "demote":
 		if user.Role == common.RoleRootUser {
-			c.JSON(http.StatusOK, gin.H{
-				"success": false,
-				"message": "无法降级超级管理员用户",
-			})
+			common.ApiErrorI18n(c, i18n.MsgUserCannotDemoteRootUser)
 			return
 		}
 		if user.Role == common.RoleCommonUser {
-			c.JSON(http.StatusOK, gin.H{
-				"success": false,
-				"message": "该用户已经是普通用户",
-			})
+			common.ApiErrorI18n(c, i18n.MsgUserAlreadyCommon)
 			return
 		}
 		user.Role = common.RoleCommonUser
@@ -996,10 +891,7 @@ func EmailBind(c *gin.Context) {
 	email := c.Query("email")
 	code := c.Query("code")
 	if !common.VerifyCodeWithKey(email, code, common.EmailVerificationPurpose) {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "验证码错误或已过期",
-		})
+		common.ApiErrorI18n(c, i18n.MsgUserVerificationCodeError)
 		return
 	}
 	session := sessions.Default(c)
@@ -1075,10 +967,7 @@ func TopUp(c *gin.Context) {
 	id := c.GetInt("id")
 	lock := getTopUpLock(id)
 	if !lock.TryLock() {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "充值处理中，请稍后重试",
-		})
+		common.ApiErrorI18n(c, i18n.MsgUserTopUpProcessing)
 		return
 	}
 	defer lock.Unlock()
@@ -1090,6 +979,10 @@ func TopUp(c *gin.Context) {
 	}
 	quota, err := model.Redeem(req.Key, id)
 	if err != nil {
+		if errors.Is(err, model.ErrRedeemFailed) {
+			common.ApiErrorI18n(c, i18n.MsgRedeemFailed)
+			return
+		}
 		common.ApiError(c, err)
 		return
 	}
@@ -1117,46 +1010,31 @@ type UpdateUserSettingRequest struct {
 func UpdateUserSetting(c *gin.Context) {
 	var req UpdateUserSettingRequest
 	if err := c.ShouldBindJSON(&req); err != nil {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "无效的参数",
-		})
+		common.ApiErrorI18n(c, i18n.MsgInvalidParams)
 		return
 	}
 
 	// 验证预警类型
 	if req.QuotaWarningType != dto.NotifyTypeEmail && req.QuotaWarningType != dto.NotifyTypeWebhook && req.QuotaWarningType != dto.NotifyTypeBark && req.QuotaWarningType != dto.NotifyTypeGotify {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "无效的预警类型",
-		})
+		common.ApiErrorI18n(c, i18n.MsgSettingInvalidType)
 		return
 	}
 
 	// 验证预警阈值
 	if req.QuotaWarningThreshold <= 0 {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "预警阈值必须大于0",
-		})
+		common.ApiErrorI18n(c, i18n.MsgQuotaThresholdGtZero)
 		return
 	}
 
 	// 如果是webhook类型,验证webhook地址
 	if req.QuotaWarningType == dto.NotifyTypeWebhook {
 		if req.WebhookUrl == "" {
-			c.JSON(http.StatusOK, gin.H{
-				"success": false,
-				"message": "Webhook地址不能为空",
-			})
+			common.ApiErrorI18n(c, i18n.MsgSettingWebhookEmpty)
 			return
 		}
 		// 验证URL格式
 		if _, err := url.ParseRequestURI(req.WebhookUrl); err != nil {
-			c.JSON(http.StatusOK, gin.H{
-				"success": false,
-				"message": "无效的Webhook地址",
-			})
+			common.ApiErrorI18n(c, i18n.MsgSettingWebhookInvalid)
 			return
 		}
 	}
@@ -1165,10 +1043,7 @@ func UpdateUserSetting(c *gin.Context) {
 	if req.QuotaWarningType == dto.NotifyTypeEmail && req.NotificationEmail != "" {
 		// 验证邮箱格式
 		if !strings.Contains(req.NotificationEmail, "@") {
-			c.JSON(http.StatusOK, gin.H{
-				"success": false,
-				"message": "无效的邮箱地址",
-			})
+			common.ApiErrorI18n(c, i18n.MsgSettingEmailInvalid)
 			return
 		}
 	}
@@ -1176,26 +1051,17 @@ func UpdateUserSetting(c *gin.Context) {
 	// 如果是Bark类型，验证Bark URL
 	if req.QuotaWarningType == dto.NotifyTypeBark {
 		if req.BarkUrl == "" {
-			c.JSON(http.StatusOK, gin.H{
-				"success": false,
-				"message": "Bark推送URL不能为空",
-			})
+			common.ApiErrorI18n(c, i18n.MsgSettingBarkUrlEmpty)
 			return
 		}
 		// 验证URL格式
 		if _, err := url.ParseRequestURI(req.BarkUrl); err != nil {
-			c.JSON(http.StatusOK, gin.H{
-				"success": false,
-				"message": "无效的Bark推送URL",
-			})
+			common.ApiErrorI18n(c, i18n.MsgSettingBarkUrlInvalid)
 			return
 		}
 		// 检查是否是HTTP或HTTPS
 		if !strings.HasPrefix(req.BarkUrl, "https://") && !strings.HasPrefix(req.BarkUrl, "http://") {
-			c.JSON(http.StatusOK, gin.H{
-				"success": false,
-				"message": "Bark推送URL必须以http://或https://开头",
-			})
+			common.ApiErrorI18n(c, i18n.MsgSettingUrlMustHttp)
 			return
 		}
 	}
@@ -1203,33 +1069,21 @@ func UpdateUserSetting(c *gin.Context) {
 	// 如果是Gotify类型，验证Gotify URL和Token
 	if req.QuotaWarningType == dto.NotifyTypeGotify {
 		if req.GotifyUrl == "" {
-			c.JSON(http.StatusOK, gin.H{
-				"success": false,
-				"message": "Gotify服务器地址不能为空",
-			})
+			common.ApiErrorI18n(c, i18n.MsgSettingGotifyUrlEmpty)
 			return
 		}
 		if req.GotifyToken == "" {
-			c.JSON(http.StatusOK, gin.H{
-				"success": false,
-				"message": "Gotify令牌不能为空",
-			})
+			common.ApiErrorI18n(c, i18n.MsgSettingGotifyTokenEmpty)
 			return
 		}
 		// 验证URL格式
 		if _, err := url.ParseRequestURI(req.GotifyUrl); err != nil {
-			c.JSON(http.StatusOK, gin.H{
-				"success": false,
-				"message": "无效的Gotify服务器地址",
-			})
+			common.ApiErrorI18n(c, i18n.MsgSettingGotifyUrlInvalid)
 			return
 		}
 		// 检查是否是HTTP或HTTPS
 		if !strings.HasPrefix(req.GotifyUrl, "https://") && !strings.HasPrefix(req.GotifyUrl, "http://") {
-			c.JSON(http.StatusOK, gin.H{
-				"success": false,
-				"message": "Gotify服务器地址必须以http://或https://开头",
-			})
+			common.ApiErrorI18n(c, i18n.MsgSettingUrlMustHttp)
 			return
 		}
 	}
@@ -1282,15 +1136,9 @@ func UpdateUserSetting(c *gin.Context) {
 	// 更新用户设置
 	user.SetSetting(settings)
 	if err := user.Update(false); err != nil {
-		c.JSON(http.StatusOK, gin.H{
-			"success": false,
-			"message": "更新设置失败: " + err.Error(),
-		})
+		common.ApiErrorI18n(c, i18n.MsgUpdateFailed)
 		return
 	}
 
-	c.JSON(http.StatusOK, gin.H{
-		"success": true,
-		"message": "设置已更新",
-	})
+	common.ApiSuccessI18n(c, i18n.MsgSettingSaved, nil)
 }

dto/user_settings.go

@@ -14,6 +14,7 @@ type UserSetting struct {
 	RecordIpLog           bool    `json:"record_ip_log,omitempty"`                  // 是否记录请求和错误日志IP
 	SidebarModules        string  `json:"sidebar_modules,omitempty"`                // SidebarModules 左侧边栏模块配置
 	BillingPreference     string  `json:"billing_preference,omitempty"`             // BillingPreference 扣费策略（订阅/钱包）
+	Language              string  `json:"language,omitempty"`                       // Language 用户语言偏好 (zh, en)
 }
 
 var (

go.mod

@@ -32,8 +32,10 @@ require (
 	github.com/jinzhu/copier v0.4.0
 	github.com/joho/godotenv v1.5.1
 	github.com/mewkiz/flac v1.0.13
+	github.com/nicksnyder/go-i18n/v2 v2.6.1
 	github.com/pkg/errors v0.9.1
 	github.com/pquerna/otp v1.5.0
+	github.com/samber/hot v0.11.0
 	github.com/samber/lo v1.52.0
 	github.com/shirou/gopsutil v3.21.11+incompatible
 	github.com/shopspring/decimal v1.4.0
@@ -48,7 +50,10 @@ require (
 	golang.org/x/crypto v0.45.0
 	golang.org/x/image v0.23.0
 	golang.org/x/net v0.47.0
-	golang.org/x/sync v0.18.0
+	golang.org/x/sync v0.19.0
+	golang.org/x/sys v0.38.0
+	golang.org/x/text v0.32.0
+	gopkg.in/yaml.v3 v3.0.1
 	gorm.io/driver/mysql v1.4.3
 	gorm.io/driver/postgres v1.5.2
 	gorm.io/gorm v1.25.2
@@ -115,7 +120,6 @@ require (
 	github.com/prometheus/procfs v0.15.1 // indirect
 	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
 	github.com/samber/go-singleflightx v0.3.2 // indirect
-	github.com/samber/hot v0.11.0 // indirect
 	github.com/stretchr/objx v0.5.2 // indirect
 	github.com/tidwall/match v1.1.1 // indirect
 	github.com/tidwall/pretty v1.2.0 // indirect
@@ -127,10 +131,7 @@ require (
 	github.com/yusufpapurcu/wmi v1.2.3 // indirect
 	golang.org/x/arch v0.21.0 // indirect
 	golang.org/x/exp v0.0.0-20250620022241-b7579e27df2b // indirect
-	golang.org/x/sys v0.38.0 // indirect
-	golang.org/x/text v0.31.0 // indirect
 	google.golang.org/protobuf v1.36.5 // indirect
-	gopkg.in/yaml.v3 v3.0.1 // indirect
 	modernc.org/libc v1.66.10 // indirect
 	modernc.org/mathutil v1.7.1 // indirect
 	modernc.org/memory v1.11.0 // indirect

go.sum

@@ -213,6 +213,8 @@ github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 h1:C3w9PqII01/Oq
 github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822/go.mod h1:+n7T8mK8HuQTcFwEeznm/DIxMOiR9yIdICNftLE1DvQ=
 github.com/ncruces/go-strftime v0.1.9 h1:bY0MQC28UADQmHmaF5dgpLmImcShSi2kHU9XLdhx/f4=
 github.com/ncruces/go-strftime v0.1.9/go.mod h1:Fwc5htZGVVkseilnfgOVb9mKy6w1naJmn9CehxcKcls=
+github.com/nicksnyder/go-i18n/v2 v2.6.1 h1:JDEJraFsQE17Dut9HFDHzCoAWGEQJom5s0TRd17NIEQ=
+github.com/nicksnyder/go-i18n/v2 v2.6.1/go.mod h1:Vee0/9RD3Quc/NmwEjzzD7VTZ+Ir7QbXocrkhOzmUKA=
 github.com/nxadm/tail v1.4.8 h1:nPr65rt6Y5JFSKQO7qToXr7pePgD6Gwiw05lkbyAQTE=
 github.com/nxadm/tail v1.4.8/go.mod h1:+ncqLTQzXmGhMZNUePPaPqPvBxHAIsmXswZKocGu+AU=
 github.com/onsi/ginkgo v1.16.5 h1:8xi0RTUf59SOSfEtZMvwTvXYMzG4gV23XVHOZiXNtnE=
@@ -329,6 +331,8 @@ golang.org/x/net v0.47.0 h1:Mx+4dIFzqraBXUugkia1OOvlD6LemFo1ALMHjrXDOhY=
 golang.org/x/net v0.47.0/go.mod h1:/jNxtkgq5yWUGYkaZGqo27cfGZ1c5Nen03aYrrKpVRU=
 golang.org/x/sync v0.18.0 h1:kr88TuHDroi+UVf+0hZnirlk8o8T+4MrK6mr60WkH/I=
 golang.org/x/sync v0.18.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
+golang.org/x/sync v0.19.0 h1:vV+1eWNmZ5geRlYjzm2adRgW2/mcpevXNg50YZtPCE4=
+golang.org/x/sync v0.19.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
 golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -349,9 +353,12 @@ golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.31.0 h1:aC8ghyu4JhP8VojJ2lEHBnochRno1sgL6nEi9WGFGMM=
 golang.org/x/text v0.31.0/go.mod h1:tKRAlv61yKIjGGHX/4tP1LTbc13YSec1pxVEWXzfoeM=
+golang.org/x/text v0.32.0 h1:ZD01bjUt1FQ9WJ0ClOL5vxgxOI/sVCNgX1YtKwcY0mU=
+golang.org/x/text v0.32.0/go.mod h1:o/rUWzghvpD5TXrTIBuJU77MTaN0ljMWE47kxGJQ7jY=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.38.0 h1:Hx2Xv8hISq8Lm16jvBZ2VQf+RLmbd7wVUsALibYI/IQ=
 golang.org/x/tools v0.38.0/go.mod h1:yEsQ/d/YK8cjh0L6rZlY8tgtlKiBNTL14pGDJPJpYQs=
+golang.org/x/tools v0.39.0 h1:ik4ho21kwuQln40uelmciQPp9SipgNDdrafrYA4TmQQ=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.28.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=

i18n/i18n.go

@@ -0,0 +1,227 @@
+package i18n
+
+import (
+	"embed"
+	"strings"
+	"sync"
+
+	"github.com/gin-gonic/gin"
+	"github.com/nicksnyder/go-i18n/v2/i18n"
+	"golang.org/x/text/language"
+	"gopkg.in/yaml.v3"
+
+	"github.com/QuantumNous/new-api/common"
+	"github.com/QuantumNous/new-api/constant"
+	"github.com/QuantumNous/new-api/dto"
+)
+
+const (
+	LangZh      = "zh"
+	LangEn      = "en"
+	DefaultLang = LangEn // Fallback to English if language not supported
+)
+
+//go:embed locales/*.yaml
+var localeFS embed.FS
+
+var (
+	bundle     *i18n.Bundle
+	localizers = make(map[string]*i18n.Localizer)
+	mu         sync.RWMutex
+	initOnce   sync.Once
+)
+
+// Init initializes the i18n bundle and loads all translation files
+func Init() error {
+	var initErr error
+	initOnce.Do(func() {
+		bundle = i18n.NewBundle(language.Chinese)
+		bundle.RegisterUnmarshalFunc("yaml", yaml.Unmarshal)
+
+		// Load embedded translation files
+		files := []string{"locales/zh.yaml", "locales/en.yaml"}
+		for _, file := range files {
+			_, err := bundle.LoadMessageFileFS(localeFS, file)
+			if err != nil {
+				initErr = err
+				return
+			}
+		}
+
+		// Pre-create localizers for supported languages
+		localizers[LangZh] = i18n.NewLocalizer(bundle, LangZh)
+		localizers[LangEn] = i18n.NewLocalizer(bundle, LangEn)
+
+		// Set the TranslateMessage function in common package
+		common.TranslateMessage = T
+	})
+	return initErr
+}
+
+// GetLocalizer returns a localizer for the specified language
+func GetLocalizer(lang string) *i18n.Localizer {
+	lang = normalizeLang(lang)
+
+	mu.RLock()
+	loc, ok := localizers[lang]
+	mu.RUnlock()
+
+	if ok {
+		return loc
+	}
+
+	// Create new localizer for unknown language (fallback to default)
+	mu.Lock()
+	defer mu.Unlock()
+
+	// Double-check after acquiring write lock
+	if loc, ok = localizers[lang]; ok {
+		return loc
+	}
+
+	loc = i18n.NewLocalizer(bundle, lang, DefaultLang)
+	localizers[lang] = loc
+	return loc
+}
+
+// T translates a message key using the language from gin context
+func T(c *gin.Context, key string, args ...map[string]any) string {
+	lang := GetLangFromContext(c)
+	return Translate(lang, key, args...)
+}
+
+// Translate translates a message key for the specified language
+func Translate(lang, key string, args ...map[string]any) string {
+	loc := GetLocalizer(lang)
+
+	config := &i18n.LocalizeConfig{
+		MessageID: key,
+	}
+
+	if len(args) > 0 && args[0] != nil {
+		config.TemplateData = args[0]
+	}
+
+	msg, err := loc.Localize(config)
+	if err != nil {
+		// Return key as fallback if translation not found
+		return key
+	}
+	return msg
+}
+
+// userLangLoaderFunc is a function that loads user language from database/cache
+// It's set by the model package to avoid circular imports
+var userLangLoaderFunc func(userId int) string
+
+// SetUserLangLoader sets the function to load user language (called from model package)
+func SetUserLangLoader(loader func(userId int) string) {
+	userLangLoaderFunc = loader
+}
+
+// GetLangFromContext extracts the language setting from gin context
+// It checks multiple sources in priority order:
+// 1. User settings (ContextKeyUserSetting) - if already loaded (e.g., by TokenAuth)
+// 2. Lazy load user language from cache/DB using user ID
+// 3. Language set by middleware (ContextKeyLanguage) - from Accept-Language header
+// 4. Default language (English)
+func GetLangFromContext(c *gin.Context) string {
+	if c == nil {
+		return DefaultLang
+	}
+
+	// 1. Try to get language from user settings (if already loaded by TokenAuth or other middleware)
+	if userSetting, ok := common.GetContextKeyType[dto.UserSetting](c, constant.ContextKeyUserSetting); ok {
+		if userSetting.Language != "" {
+			normalized := normalizeLang(userSetting.Language)
+			if IsSupported(normalized) {
+				return normalized
+			}
+		}
+	}
+
+	// 2. Lazy load user language using user ID (for session-based auth where full settings aren't loaded)
+	if userLangLoaderFunc != nil {
+		if userId, exists := c.Get("id"); exists {
+			if uid, ok := userId.(int); ok && uid > 0 {
+				lang := userLangLoaderFunc(uid)
+				if lang != "" {
+					normalized := normalizeLang(lang)
+					if IsSupported(normalized) {
+						return normalized
+					}
+				}
+			}
+		}
+	}
+
+	// 3. Try to get language from context (set by I18n middleware from Accept-Language)
+	if lang := c.GetString(string(constant.ContextKeyLanguage)); lang != "" {
+		normalized := normalizeLang(lang)
+		if IsSupported(normalized) {
+			return normalized
+		}
+	}
+
+	// 4. Try Accept-Language header directly (fallback if middleware didn't run)
+	if acceptLang := c.GetHeader("Accept-Language"); acceptLang != "" {
+		lang := ParseAcceptLanguage(acceptLang)
+		if IsSupported(lang) {
+			return lang
+		}
+	}
+
+	return DefaultLang
+}
+
+// ParseAcceptLanguage parses the Accept-Language header and returns the preferred language
+func ParseAcceptLanguage(header string) string {
+	if header == "" {
+		return DefaultLang
+	}
+
+	// Simple parsing: take the first language tag
+	parts := strings.Split(header, ",")
+	if len(parts) == 0 {
+		return DefaultLang
+	}
+
+	// Get the first language and remove quality value
+	firstLang := strings.TrimSpace(parts[0])
+	if idx := strings.Index(firstLang, ";"); idx > 0 {
+		firstLang = firstLang[:idx]
+	}
+
+	return normalizeLang(firstLang)
+}
+
+// normalizeLang normalizes language code to supported format
+func normalizeLang(lang string) string {
+	lang = strings.ToLower(strings.TrimSpace(lang))
+
+	// Handle common variations
+	switch {
+	case strings.HasPrefix(lang, "zh"):
+		return LangZh
+	case strings.HasPrefix(lang, "en"):
+		return LangEn
+	default:
+		return DefaultLang
+	}
+}
+
+// SupportedLanguages returns a list of supported language codes
+func SupportedLanguages() []string {
+	return []string{LangZh, LangEn}
+}
+
+// IsSupported checks if a language code is supported
+func IsSupported(lang string) bool {
+	lang = normalizeLang(lang)
+	for _, supported := range SupportedLanguages() {
+		if lang == supported {
+			return true
+		}
+	}
+	return false
+}

i18n/keys.go

@@ -0,0 +1,278 @@
+package i18n
+
+// Message keys for i18n translations
+// Use these constants instead of hardcoded strings
+
+// Common error messages
+const (
+	MsgInvalidParams     = "common.invalid_params"
+	MsgDatabaseError     = "common.database_error"
+	MsgRetryLater        = "common.retry_later"
+	MsgGenerateFailed    = "common.generate_failed"
+	MsgNotFound          = "common.not_found"
+	MsgUnauthorized      = "common.unauthorized"
+	MsgForbidden         = "common.forbidden"
+	MsgInvalidId         = "common.invalid_id"
+	MsgIdEmpty           = "common.id_empty"
+	MsgFeatureDisabled   = "common.feature_disabled"
+	MsgOperationSuccess  = "common.operation_success"
+	MsgOperationFailed   = "common.operation_failed"
+	MsgUpdateSuccess     = "common.update_success"
+	MsgUpdateFailed      = "common.update_failed"
+	MsgCreateSuccess     = "common.create_success"
+	MsgCreateFailed      = "common.create_failed"
+	MsgDeleteSuccess     = "common.delete_success"
+	MsgDeleteFailed      = "common.delete_failed"
+	MsgAlreadyExists     = "common.already_exists"
+	MsgNameCannotBeEmpty = "common.name_cannot_be_empty"
+)
+
+// Token related messages
+const (
+	MsgTokenNameTooLong          = "token.name_too_long"
+	MsgTokenQuotaNegative        = "token.quota_negative"
+	MsgTokenQuotaExceedMax       = "token.quota_exceed_max"
+	MsgTokenGenerateFailed       = "token.generate_failed"
+	MsgTokenGetInfoFailed        = "token.get_info_failed"
+	MsgTokenExpiredCannotEnable  = "token.expired_cannot_enable"
+	MsgTokenExhaustedCannotEable = "token.exhausted_cannot_enable"
+	MsgTokenInvalid              = "token.invalid"
+	MsgTokenNotProvided          = "token.not_provided"
+	MsgTokenExpired              = "token.expired"
+	MsgTokenExhausted            = "token.exhausted"
+	MsgTokenStatusUnavailable    = "token.status_unavailable"
+	MsgTokenDbError              = "token.db_error"
+)
+
+// Redemption related messages
+const (
+	MsgRedemptionNameLength        = "redemption.name_length"
+	MsgRedemptionCountPositive     = "redemption.count_positive"
+	MsgRedemptionCountMax          = "redemption.count_max"
+	MsgRedemptionCreateFailed      = "redemption.create_failed"
+	MsgRedemptionInvalid           = "redemption.invalid"
+	MsgRedemptionUsed              = "redemption.used"
+	MsgRedemptionExpired           = "redemption.expired"
+	MsgRedemptionFailed            = "redemption.failed"
+	MsgRedemptionNotProvided       = "redemption.not_provided"
+	MsgRedemptionExpireTimeInvalid = "redemption.expire_time_invalid"
+)
+
+// User related messages
+const (
+	MsgUserPasswordLoginDisabled      = "user.password_login_disabled"
+	MsgUserRegisterDisabled           = "user.register_disabled"
+	MsgUserPasswordRegisterDisabled   = "user.password_register_disabled"
+	MsgUserUsernameOrPasswordEmpty    = "user.username_or_password_empty"
+	MsgUserUsernameOrPasswordError    = "user.username_or_password_error"
+	MsgUserEmailOrPasswordEmpty       = "user.email_or_password_empty"
+	MsgUserExists                     = "user.exists"
+	MsgUserNotExists                  = "user.not_exists"
+	MsgUserDisabled                   = "user.disabled"
+	MsgUserSessionSaveFailed          = "user.session_save_failed"
+	MsgUserRequire2FA                 = "user.require_2fa"
+	MsgUserEmailVerificationRequired  = "user.email_verification_required"
+	MsgUserVerificationCodeError      = "user.verification_code_error"
+	MsgUserInputInvalid               = "user.input_invalid"
+	MsgUserNoPermissionSameLevel      = "user.no_permission_same_level"
+	MsgUserNoPermissionHigherLevel    = "user.no_permission_higher_level"
+	MsgUserCannotCreateHigherLevel    = "user.cannot_create_higher_level"
+	MsgUserCannotDeleteRootUser       = "user.cannot_delete_root_user"
+	MsgUserCannotDisableRootUser      = "user.cannot_disable_root_user"
+	MsgUserCannotDemoteRootUser       = "user.cannot_demote_root_user"
+	MsgUserAlreadyAdmin               = "user.already_admin"
+	MsgUserAlreadyCommon              = "user.already_common"
+	MsgUserAdminCannotPromote         = "user.admin_cannot_promote"
+	MsgUserOriginalPasswordError      = "user.original_password_error"
+	MsgUserInviteQuotaInsufficient    = "user.invite_quota_insufficient"
+	MsgUserTransferQuotaMinimum       = "user.transfer_quota_minimum"
+	MsgUserTransferSuccess            = "user.transfer_success"
+	MsgUserTransferFailed             = "user.transfer_failed"
+	MsgUserTopUpProcessing            = "user.topup_processing"
+	MsgUserRegisterFailed             = "user.register_failed"
+	MsgUserDefaultTokenFailed         = "user.default_token_failed"
+	MsgUserAffCodeEmpty               = "user.aff_code_empty"
+	MsgUserEmailEmpty                 = "user.email_empty"
+	MsgUserGitHubIdEmpty              = "user.github_id_empty"
+	MsgUserDiscordIdEmpty             = "user.discord_id_empty"
+	MsgUserOidcIdEmpty                = "user.oidc_id_empty"
+	MsgUserWeChatIdEmpty              = "user.wechat_id_empty"
+	MsgUserTelegramIdEmpty            = "user.telegram_id_empty"
+	MsgUserTelegramNotBound           = "user.telegram_not_bound"
+	MsgUserLinuxDOIdEmpty             = "user.linux_do_id_empty"
+)
+
+// Quota related messages
+const (
+	MsgQuotaNegative        = "quota.negative"
+	MsgQuotaExceedMax       = "quota.exceed_max"
+	MsgQuotaInsufficient    = "quota.insufficient"
+	MsgQuotaWarningInvalid  = "quota.warning_invalid"
+	MsgQuotaThresholdGtZero = "quota.threshold_gt_zero"
+)
+
+// Subscription related messages
+const (
+	MsgSubscriptionNotEnabled       = "subscription.not_enabled"
+	MsgSubscriptionTitleEmpty       = "subscription.title_empty"
+	MsgSubscriptionPriceNegative    = "subscription.price_negative"
+	MsgSubscriptionPriceMax         = "subscription.price_max"
+	MsgSubscriptionPurchaseLimitNeg = "subscription.purchase_limit_negative"
+	MsgSubscriptionQuotaNegative    = "subscription.quota_negative"
+	MsgSubscriptionGroupNotExists   = "subscription.group_not_exists"
+	MsgSubscriptionResetCycleGtZero = "subscription.reset_cycle_gt_zero"
+	MsgSubscriptionPurchaseMax      = "subscription.purchase_max"
+	MsgSubscriptionInvalidId        = "subscription.invalid_id"
+	MsgSubscriptionInvalidUserId    = "subscription.invalid_user_id"
+)
+
+// Payment related messages
+const (
+	MsgPaymentNotConfigured    = "payment.not_configured"
+	MsgPaymentMethodNotExists  = "payment.method_not_exists"
+	MsgPaymentCallbackError    = "payment.callback_error"
+	MsgPaymentCreateFailed     = "payment.create_failed"
+	MsgPaymentStartFailed      = "payment.start_failed"
+	MsgPaymentAmountTooLow     = "payment.amount_too_low"
+	MsgPaymentStripeNotConfig  = "payment.stripe_not_configured"
+	MsgPaymentWebhookNotConfig = "payment.webhook_not_configured"
+	MsgPaymentPriceIdNotConfig = "payment.price_id_not_configured"
+	MsgPaymentCreemNotConfig   = "payment.creem_not_configured"
+)
+
+// Topup related messages
+const (
+	MsgTopupNotProvided    = "topup.not_provided"
+	MsgTopupOrderNotExists = "topup.order_not_exists"
+	MsgTopupOrderStatus    = "topup.order_status"
+	MsgTopupFailed         = "topup.failed"
+	MsgTopupInvalidQuota   = "topup.invalid_quota"
+)
+
+// Channel related messages
+const (
+	MsgChannelNotExists           = "channel.not_exists"
+	MsgChannelIdFormatError       = "channel.id_format_error"
+	MsgChannelNoAvailableKey      = "channel.no_available_key"
+	MsgChannelGetListFailed       = "channel.get_list_failed"
+	MsgChannelGetTagsFailed       = "channel.get_tags_failed"
+	MsgChannelGetKeyFailed        = "channel.get_key_failed"
+	MsgChannelGetOllamaFailed     = "channel.get_ollama_failed"
+	MsgChannelQueryFailed         = "channel.query_failed"
+	MsgChannelNoValidUpstream     = "channel.no_valid_upstream"
+	MsgChannelUpstreamSaturated   = "channel.upstream_saturated"
+	MsgChannelGetAvailableFailed  = "channel.get_available_failed"
+)
+
+// Model related messages
+const (
+	MsgModelNameEmpty      = "model.name_empty"
+	MsgModelNameExists     = "model.name_exists"
+	MsgModelIdMissing      = "model.id_missing"
+	MsgModelGetListFailed  = "model.get_list_failed"
+	MsgModelGetFailed      = "model.get_failed"
+	MsgModelResetSuccess   = "model.reset_success"
+)
+
+// Vendor related messages
+const (
+	MsgVendorNameEmpty   = "vendor.name_empty"
+	MsgVendorNameExists  = "vendor.name_exists"
+	MsgVendorIdMissing   = "vendor.id_missing"
+)
+
+// Group related messages
+const (
+	MsgGroupNameTypeEmpty = "group.name_type_empty"
+	MsgGroupNameExists    = "group.name_exists"
+	MsgGroupIdMissing     = "group.id_missing"
+)
+
+// Checkin related messages
+const (
+	MsgCheckinDisabled     = "checkin.disabled"
+	MsgCheckinAlreadyToday = "checkin.already_today"
+	MsgCheckinFailed       = "checkin.failed"
+	MsgCheckinQuotaFailed  = "checkin.quota_failed"
+)
+
+// Passkey related messages
+const (
+	MsgPasskeyCreateFailed   = "passkey.create_failed"
+	MsgPasskeyLoginAbnormal  = "passkey.login_abnormal"
+	MsgPasskeyUpdateFailed   = "passkey.update_failed"
+	MsgPasskeyInvalidUserId  = "passkey.invalid_user_id"
+	MsgPasskeyVerifyFailed   = "passkey.verify_failed"
+)
+
+// 2FA related messages
+const (
+	MsgTwoFANotEnabled       = "twofa.not_enabled"
+	MsgTwoFAUserIdEmpty      = "twofa.user_id_empty"
+	MsgTwoFAAlreadyExists    = "twofa.already_exists"
+	MsgTwoFARecordIdEmpty    = "twofa.record_id_empty"
+	MsgTwoFACodeInvalid      = "twofa.code_invalid"
+)
+
+// Rate limit related messages
+const (
+	MsgRateLimitReached      = "rate_limit.reached"
+	MsgRateLimitTotalReached = "rate_limit.total_reached"
+)
+
+// Setting related messages
+const (
+	MsgSettingInvalidType      = "setting.invalid_type"
+	MsgSettingWebhookEmpty     = "setting.webhook_empty"
+	MsgSettingWebhookInvalid   = "setting.webhook_invalid"
+	MsgSettingEmailInvalid     = "setting.email_invalid"
+	MsgSettingBarkUrlEmpty     = "setting.bark_url_empty"
+	MsgSettingBarkUrlInvalid   = "setting.bark_url_invalid"
+	MsgSettingGotifyUrlEmpty   = "setting.gotify_url_empty"
+	MsgSettingGotifyTokenEmpty = "setting.gotify_token_empty"
+	MsgSettingGotifyUrlInvalid = "setting.gotify_url_invalid"
+	MsgSettingUrlMustHttp      = "setting.url_must_http"
+	MsgSettingSaved            = "setting.saved"
+)
+
+// Deployment related messages (io.net)
+const (
+	MsgDeploymentNotEnabled     = "deployment.not_enabled"
+	MsgDeploymentIdRequired     = "deployment.id_required"
+	MsgDeploymentContainerIdReq = "deployment.container_id_required"
+	MsgDeploymentNameEmpty      = "deployment.name_empty"
+	MsgDeploymentNameTaken      = "deployment.name_taken"
+	MsgDeploymentHardwareIdReq  = "deployment.hardware_id_required"
+	MsgDeploymentHardwareInvId  = "deployment.hardware_invalid_id"
+	MsgDeploymentApiKeyRequired = "deployment.api_key_required"
+	MsgDeploymentInvalidPayload = "deployment.invalid_payload"
+	MsgDeploymentNotFound       = "deployment.not_found"
+)
+
+// Performance related messages
+const (
+	MsgPerfDiskCacheCleared = "performance.disk_cache_cleared"
+	MsgPerfStatsReset       = "performance.stats_reset"
+	MsgPerfGcExecuted       = "performance.gc_executed"
+)
+
+// Ability related messages
+const (
+	MsgAbilityDbCorrupted   = "ability.db_corrupted"
+	MsgAbilityRepairRunning = "ability.repair_running"
+)
+
+// OAuth related messages
+const (
+	MsgOAuthInvalidCode = "oauth.invalid_code"
+	MsgOAuthGetUserErr  = "oauth.get_user_error"
+	MsgOAuthAccountUsed = "oauth.account_used"
+)
+
+// Model layer error messages (for translation in controller)
+const (
+	MsgRedeemFailed          = "redeem.failed"
+	MsgCreateDefaultTokenErr = "user.create_default_token_error"
+	MsgUuidDuplicate         = "common.uuid_duplicate"
+	MsgInvalidInput          = "common.invalid_input"
+)

i18n/locales/en.yaml

@@ -0,0 +1,231 @@
+# English translations
+
+# Common messages
+common.invalid_params: "Invalid parameters"
+common.database_error: "Database error, please try again later"
+common.retry_later: "Please try again later"
+common.generate_failed: "Generation failed"
+common.not_found: "Not found"
+common.unauthorized: "Unauthorized"
+common.forbidden: "Forbidden"
+common.invalid_id: "Invalid ID"
+common.id_empty: "ID is empty!"
+common.feature_disabled: "This feature is not enabled"
+common.operation_success: "Operation successful"
+common.operation_failed: "Operation failed"
+common.update_success: "Update successful"
+common.update_failed: "Update failed"
+common.create_success: "Creation successful"
+common.create_failed: "Creation failed"
+common.delete_success: "Deletion successful"
+common.delete_failed: "Deletion failed"
+common.already_exists: "Already exists"
+common.name_cannot_be_empty: "Name cannot be empty"
+
+# Token messages
+token.name_too_long: "Token name is too long"
+token.quota_negative: "Quota value cannot be negative"
+token.quota_exceed_max: "Quota value exceeds valid range, maximum is {{.Max}}"
+token.generate_failed: "Failed to generate token"
+token.get_info_failed: "Failed to get token info, please try again later"
+token.expired_cannot_enable: "Token has expired and cannot be enabled. Please modify the expiration time or set it to never expire"
+token.exhausted_cannot_enable: "Token quota is exhausted and cannot be enabled. Please modify the remaining quota or set it to unlimited"
+token.invalid: "Invalid token"
+token.not_provided: "Token not provided"
+token.expired: "This token has expired"
+token.exhausted: "This token quota is exhausted TokenStatusExhausted[sk-{{.Prefix}}***{{.Suffix}}]"
+token.status_unavailable: "This token status is unavailable"
+token.db_error: "Invalid token, database query error, please contact administrator"
+
+# Redemption messages
+redemption.name_length: "Redemption code name length must be between 1-20"
+redemption.count_positive: "Redemption code count must be greater than 0"
+redemption.count_max: "Maximum 100 redemption codes can be generated at once"
+redemption.create_failed: "Failed to create redemption code, please try again later"
+redemption.invalid: "Invalid redemption code"
+redemption.used: "This redemption code has been used"
+redemption.expired: "This redemption code has expired"
+redemption.failed: "Redemption failed, please try again later"
+redemption.not_provided: "Redemption code not provided"
+redemption.expire_time_invalid: "Expiration time cannot be earlier than current time"
+
+# User messages
+user.password_login_disabled: "Password login has been disabled by administrator"
+user.register_disabled: "New user registration has been disabled by administrator"
+user.password_register_disabled: "Password registration has been disabled by administrator, please use third-party account verification"
+user.username_or_password_empty: "Username or password is empty"
+user.username_or_password_error: "Username or password is incorrect, or user has been banned"
+user.email_or_password_empty: "Email or password is empty!"
+user.exists: "Username already exists or has been deleted"
+user.not_exists: "User does not exist"
+user.disabled: "This user has been disabled"
+user.session_save_failed: "Failed to save session, please try again"
+user.require_2fa: "Please enter two-factor authentication code"
+user.email_verification_required: "Email verification is enabled, please enter email address and verification code"
+user.verification_code_error: "Verification code is incorrect or has expired"
+user.input_invalid: "Invalid input {{.Error}}"
+user.no_permission_same_level: "No permission to access users of same or higher level"
+user.no_permission_higher_level: "No permission to update users of same or higher permission level"
+user.cannot_create_higher_level: "Cannot create users with permission level equal to or higher than yourself"
+user.cannot_delete_root_user: "Cannot delete super administrator account"
+user.cannot_disable_root_user: "Cannot disable super administrator user"
+user.cannot_demote_root_user: "Cannot demote super administrator user"
+user.already_admin: "This user is already an administrator"
+user.already_common: "This user is already a common user"
+user.admin_cannot_promote: "Regular administrators cannot promote other users to administrator"
+user.original_password_error: "Original password is incorrect"
+user.invite_quota_insufficient: "Invitation quota is insufficient!"
+user.transfer_quota_minimum: "Minimum transfer quota is {{.Min}}!"
+user.transfer_success: "Transfer successful"
+user.transfer_failed: "Transfer failed {{.Error}}"
+user.topup_processing: "Top-up is processing, please try again later"
+user.register_failed: "User registration failed or user ID retrieval failed"
+user.default_token_failed: "Failed to generate default token"
+user.aff_code_empty: "Affiliate code is empty!"
+user.email_empty: "Email is empty!"
+user.github_id_empty: "GitHub ID is empty!"
+user.discord_id_empty: "Discord ID is empty!"
+user.oidc_id_empty: "OIDC ID is empty!"
+user.wechat_id_empty: "WeChat ID is empty!"
+user.telegram_id_empty: "Telegram ID is empty!"
+user.telegram_not_bound: "This Telegram account is not bound"
+user.linux_do_id_empty: "Linux DO ID is empty!"
+
+# Quota messages
+quota.negative: "Quota cannot be negative!"
+quota.exceed_max: "Quota value exceeds valid range"
+quota.insufficient: "Insufficient quota"
+quota.warning_invalid: "Invalid warning type"
+quota.threshold_gt_zero: "Warning threshold must be greater than 0"
+
+# Subscription messages
+subscription.not_enabled: "Subscription plan is not enabled"
+subscription.title_empty: "Subscription plan title cannot be empty"
+subscription.price_negative: "Price cannot be negative"
+subscription.price_max: "Price cannot exceed 9999"
+subscription.purchase_limit_negative: "Purchase limit cannot be negative"
+subscription.quota_negative: "Total quota cannot be negative"
+subscription.group_not_exists: "Upgrade group does not exist"
+subscription.reset_cycle_gt_zero: "Custom reset cycle must be greater than 0 seconds"
+subscription.purchase_max: "Purchase limit for this plan has been reached"
+subscription.invalid_id: "Invalid subscription ID"
+subscription.invalid_user_id: "Invalid user ID"
+
+# Payment messages
+payment.not_configured: "Payment information has not been configured by administrator"
+payment.method_not_exists: "Payment method does not exist"
+payment.callback_error: "Callback URL configuration error"
+payment.create_failed: "Failed to create order"
+payment.start_failed: "Failed to start payment"
+payment.amount_too_low: "Plan amount is too low"
+payment.stripe_not_configured: "Stripe is not configured or key is invalid"
+payment.webhook_not_configured: "Webhook is not configured"
+payment.price_id_not_configured: "StripePriceId is not configured for this plan"
+payment.creem_not_configured: "CreemProductId is not configured for this plan"
+
+# Topup messages
+topup.not_provided: "Payment order number not provided"
+topup.order_not_exists: "Top-up order does not exist"
+topup.order_status: "Top-up order status error"
+topup.failed: "Top-up failed, please try again later"
+topup.invalid_quota: "Invalid top-up quota"
+
+# Channel messages
+channel.not_exists: "Channel does not exist"
+channel.id_format_error: "Channel ID format error"
+channel.no_available_key: "No available channel keys"
+channel.get_list_failed: "Failed to get channel list, please try again later"
+channel.get_tags_failed: "Failed to get tags, please try again later"
+channel.get_key_failed: "Failed to get channel key"
+channel.get_ollama_failed: "Failed to get Ollama models"
+channel.query_failed: "Failed to query channel"
+channel.no_valid_upstream: "No valid upstream channel"
+channel.upstream_saturated: "Current group upstream load is saturated, please try again later"
+channel.get_available_failed: "Failed to get available channels for model {{.Model}} under group {{.Group}}"
+
+# Model messages
+model.name_empty: "Model name cannot be empty"
+model.name_exists: "Model name already exists"
+model.id_missing: "Model ID is missing"
+model.get_list_failed: "Failed to get model list, please try again later"
+model.get_failed: "Failed to get upstream models"
+model.reset_success: "Model ratio reset successful"
+
+# Vendor messages
+vendor.name_empty: "Vendor name cannot be empty"
+vendor.name_exists: "Vendor name already exists"
+vendor.id_missing: "Vendor ID is missing"
+
+# Group messages
+group.name_type_empty: "Group name and type cannot be empty"
+group.name_exists: "Group name already exists"
+group.id_missing: "Group ID is missing"
+
+# Checkin messages
+checkin.disabled: "Check-in feature is not enabled"
+checkin.already_today: "Already checked in today"
+checkin.failed: "Check-in failed, please try again later"
+checkin.quota_failed: "Check-in failed: quota update error"
+
+# Passkey messages
+passkey.create_failed: "Unable to create Passkey credential"
+passkey.login_abnormal: "Passkey login status is abnormal"
+passkey.update_failed: "Passkey credential update failed"
+passkey.invalid_user_id: "Invalid user ID"
+passkey.verify_failed: "Passkey verification failed, please try again or contact administrator"
+
+# 2FA messages
+twofa.not_enabled: "User has not enabled 2FA"
+twofa.user_id_empty: "User ID cannot be empty"
+twofa.already_exists: "User already has 2FA configured"
+twofa.record_id_empty: "2FA record ID cannot be empty"
+twofa.code_invalid: "Verification code or backup code is incorrect"
+
+# Rate limit messages
+rate_limit.reached: "You have reached the request limit: maximum {{.Max}} requests in {{.Minutes}} minutes"
+rate_limit.total_reached: "You have reached the total request limit: maximum {{.Max}} requests in {{.Minutes}} minutes, including failed attempts"
+
+# Setting messages
+setting.invalid_type: "Invalid warning type"
+setting.webhook_empty: "Webhook URL cannot be empty"
+setting.webhook_invalid: "Invalid Webhook URL"
+setting.email_invalid: "Invalid email address"
+setting.bark_url_empty: "Bark push URL cannot be empty"
+setting.bark_url_invalid: "Invalid Bark push URL"
+setting.gotify_url_empty: "Gotify server URL cannot be empty"
+setting.gotify_token_empty: "Gotify token cannot be empty"
+setting.gotify_url_invalid: "Invalid Gotify server URL"
+setting.url_must_http: "URL must start with http:// or https://"
+setting.saved: "Settings updated"
+
+# Deployment messages (io.net)
+deployment.not_enabled: "io.net model deployment is not enabled or API key is missing"
+deployment.id_required: "Deployment ID is required"
+deployment.container_id_required: "Container ID is required"
+deployment.name_empty: "Deployment name cannot be empty"
+deployment.name_taken: "Deployment name is not available, please choose a different name"
+deployment.hardware_id_required: "hardware_id parameter is required"
+deployment.hardware_invalid_id: "Invalid hardware_id parameter"
+deployment.api_key_required: "api_key is required"
+deployment.invalid_payload: "Invalid request payload"
+deployment.not_found: "Container details not found"
+
+# Performance messages
+performance.disk_cache_cleared: "Inactive disk cache has been cleared"
+performance.stats_reset: "Statistics have been reset"
+performance.gc_executed: "GC has been executed"
+
+# Ability messages
+ability.db_corrupted: "Database consistency has been compromised"
+ability.repair_running: "A repair task is already running, please try again later"
+
+# OAuth messages
+oauth.invalid_code: "Invalid authorization code"
+oauth.get_user_error: "Failed to get user information"
+oauth.account_used: "This account has been bound to another user"
+
+# Model layer error messages
+redeem.failed: "Redemption failed, please try again later"
+user.create_default_token_error: "Failed to create default token"
+common.uuid_duplicate: "Please retry, the system generated a duplicate UUID!"
+common.invalid_input: "Invalid input"

i18n/locales/zh.yaml

@@ -0,0 +1,232 @@
+# Chinese (Simplified) translations
+# 中文（简体）翻译文件
+
+# Common messages
+common.invalid_params: "无效的参数"
+common.database_error: "数据库错误，请稍后重试"
+common.retry_later: "请稍后重试"
+common.generate_failed: "生成失败"
+common.not_found: "未找到"
+common.unauthorized: "未授权"
+common.forbidden: "无权限"
+common.invalid_id: "无效的ID"
+common.id_empty: "ID 为空！"
+common.feature_disabled: "该功能未启用"
+common.operation_success: "操作成功"
+common.operation_failed: "操作失败"
+common.update_success: "更新成功"
+common.update_failed: "更新失败"
+common.create_success: "创建成功"
+common.create_failed: "创建失败"
+common.delete_success: "删除成功"
+common.delete_failed: "删除失败"
+common.already_exists: "已存在"
+common.name_cannot_be_empty: "名称不能为空"
+
+# Token messages
+token.name_too_long: "令牌名称过长"
+token.quota_negative: "额度值不能为负数"
+token.quota_exceed_max: "额度值超出有效范围，最大值为 {{.Max}}"
+token.generate_failed: "生成令牌失败"
+token.get_info_failed: "获取令牌信息失败，请稍后重试"
+token.expired_cannot_enable: "令牌已过期，无法启用，请先修改令牌过期时间，或者设置为永不过期"
+token.exhausted_cannot_enable: "令牌可用额度已用尽，无法启用，请先修改令牌剩余额度，或者设置为无限额度"
+token.invalid: "无效的令牌"
+token.not_provided: "未提供令牌"
+token.expired: "该令牌已过期"
+token.exhausted: "该令牌额度已用尽 TokenStatusExhausted[sk-{{.Prefix}}***{{.Suffix}}]"
+token.status_unavailable: "该令牌状态不可用"
+token.db_error: "无效的令牌，数据库查询出错，请联系管理员"
+
+# Redemption messages
+redemption.name_length: "兑换码名称长度必须在1-20之间"
+redemption.count_positive: "兑换码个数必须大于0"
+redemption.count_max: "一次兑换码批量生成的个数不能大于 100"
+redemption.create_failed: "创建兑换码失败，请稍后重试"
+redemption.invalid: "无效的兑换码"
+redemption.used: "该兑换码已被使用"
+redemption.expired: "该兑换码已过期"
+redemption.failed: "兑换失败，请稍后重试"
+redemption.not_provided: "未提供兑换码"
+redemption.expire_time_invalid: "过期时间不能早于当前时间"
+
+# User messages
+user.password_login_disabled: "管理员关闭了密码登录"
+user.register_disabled: "管理员关闭了新用户注册"
+user.password_register_disabled: "管理员关闭了通过密码进行注册，请使用第三方账户验证的形式进行注册"
+user.username_or_password_empty: "用户名或密码为空"
+user.username_or_password_error: "用户名或密码错误，或用户已被封禁"
+user.email_or_password_empty: "邮箱地址或密码为空！"
+user.exists: "用户名已存在，或已注销"
+user.not_exists: "用户不存在"
+user.disabled: "该用户已被禁用"
+user.session_save_failed: "无法保存会话信息，请重试"
+user.require_2fa: "请输入两步验证码"
+user.email_verification_required: "管理员开启了邮箱验证，请输入邮箱地址和验证码"
+user.verification_code_error: "验证码错误或已过期"
+user.input_invalid: "输入不合法 {{.Error}}"
+user.no_permission_same_level: "无权获取同级或更高等级用户的信息"
+user.no_permission_higher_level: "无权更新同权限等级或更高权限等级的用户信息"
+user.cannot_create_higher_level: "无法创建权限大于等于自己的用户"
+user.cannot_delete_root_user: "不能删除超级管理员账户"
+user.cannot_disable_root_user: "无法禁用超级管理员用户"
+user.cannot_demote_root_user: "无法降级超级管理员用户"
+user.already_admin: "该用户已经是管理员"
+user.already_common: "该用户已经是普通用户"
+user.admin_cannot_promote: "普通管理员用户无法提升其他用户为管理员"
+user.original_password_error: "原密码错误"
+user.invite_quota_insufficient: "邀请额度不足！"
+user.transfer_quota_minimum: "转移额度最小为{{.Min}}！"
+user.transfer_success: "划转成功"
+user.transfer_failed: "划转失败 {{.Error}}"
+user.topup_processing: "充值处理中，请稍后重试"
+user.register_failed: "用户注册失败或用户ID获取失败"
+user.default_token_failed: "生成默认令牌失败"
+user.aff_code_empty: "affCode 为空！"
+user.email_empty: "email 为空！"
+user.github_id_empty: "GitHub id 为空！"
+user.discord_id_empty: "discord id 为空！"
+user.oidc_id_empty: "oidc id 为空！"
+user.wechat_id_empty: "WeChat id 为空！"
+user.telegram_id_empty: "Telegram id 为空！"
+user.telegram_not_bound: "该 Telegram 账户未绑定"
+user.linux_do_id_empty: "Linux DO id 为空！"
+
+# Quota messages
+quota.negative: "额度不能为负数！"
+quota.exceed_max: "额度值超出有效范围"
+quota.insufficient: "额度不足"
+quota.warning_invalid: "无效的预警类型"
+quota.threshold_gt_zero: "预警阈值必须大于0"
+
+# Subscription messages
+subscription.not_enabled: "套餐未启用"
+subscription.title_empty: "套餐标题不能为空"
+subscription.price_negative: "价格不能为负数"
+subscription.price_max: "价格不能超过9999"
+subscription.purchase_limit_negative: "购买上限不能为负数"
+subscription.quota_negative: "总额度不能为负数"
+subscription.group_not_exists: "升级分组不存在"
+subscription.reset_cycle_gt_zero: "自定义重置周期需大于0秒"
+subscription.purchase_max: "已达到该套餐购买上限"
+subscription.invalid_id: "无效的订阅ID"
+subscription.invalid_user_id: "无效的用户ID"
+
+# Payment messages
+payment.not_configured: "当前管理员未配置支付信息"
+payment.method_not_exists: "支付方式不存在"
+payment.callback_error: "回调地址配置错误"
+payment.create_failed: "创建订单失败"
+payment.start_failed: "拉起支付失败"
+payment.amount_too_low: "套餐金额过低"
+payment.stripe_not_configured: "Stripe 未配置或密钥无效"
+payment.webhook_not_configured: "Webhook 未配置"
+payment.price_id_not_configured: "该套餐未配置 StripePriceId"
+payment.creem_not_configured: "该套餐未配置 CreemProductId"
+
+# Topup messages
+topup.not_provided: "未提供支付单号"
+topup.order_not_exists: "充值订单不存在"
+topup.order_status: "充值订单状态错误"
+topup.failed: "充值失败，请稍后重试"
+topup.invalid_quota: "无效的充值额度"
+
+# Channel messages
+channel.not_exists: "渠道不存在"
+channel.id_format_error: "渠道ID格式错误"
+channel.no_available_key: "没有可用的渠道密钥"
+channel.get_list_failed: "获取渠道列表失败，请稍后重试"
+channel.get_tags_failed: "获取标签失败，请稍后重试"
+channel.get_key_failed: "获取渠道密钥失败"
+channel.get_ollama_failed: "获取Ollama模型失败"
+channel.query_failed: "查询渠道失败"
+channel.no_valid_upstream: "无有效上游渠道"
+channel.upstream_saturated: "当前分组上游负载已饱和，请稍后再试"
+channel.get_available_failed: "获取分组 {{.Group}} 下模型 {{.Model}} 的可用渠道失败"
+
+# Model messages
+model.name_empty: "模型名称不能为空"
+model.name_exists: "模型名称已存在"
+model.id_missing: "缺少模型 ID"
+model.get_list_failed: "获取模型列表失败，请稍后重试"
+model.get_failed: "获取上游模型失败"
+model.reset_success: "重置模型倍率成功"
+
+# Vendor messages
+vendor.name_empty: "供应商名称不能为空"
+vendor.name_exists: "供应商名称已存在"
+vendor.id_missing: "缺少供应商 ID"
+
+# Group messages
+group.name_type_empty: "组名称和类型不能为空"
+group.name_exists: "组名称已存在"
+group.id_missing: "缺少组 ID"
+
+# Checkin messages
+checkin.disabled: "签到功能未启用"
+checkin.already_today: "今日已签到"
+checkin.failed: "签到失败，请稍后重试"
+checkin.quota_failed: "签到失败：更新额度出错"
+
+# Passkey messages
+passkey.create_failed: "无法创建 Passkey 凭证"
+passkey.login_abnormal: "Passkey 登录状态异常"
+passkey.update_failed: "Passkey 凭证更新失败"
+passkey.invalid_user_id: "无效的用户 ID"
+passkey.verify_failed: "Passkey 验证失败，请重试或联系管理员"
+
+# 2FA messages
+twofa.not_enabled: "用户未启用2FA"
+twofa.user_id_empty: "用户ID不能为空"
+twofa.already_exists: "用户已存在2FA设置"
+twofa.record_id_empty: "2FA记录ID不能为空"
+twofa.code_invalid: "验证码或备用码不正确"
+
+# Rate limit messages
+rate_limit.reached: "您已达到请求数限制：{{.Minutes}}分钟内最多请求{{.Max}}次"
+rate_limit.total_reached: "您已达到总请求数限制：{{.Minutes}}分钟内最多请求{{.Max}}次，包括失败次数"
+
+# Setting messages
+setting.invalid_type: "无效的预警类型"
+setting.webhook_empty: "Webhook地址不能为空"
+setting.webhook_invalid: "无效的Webhook地址"
+setting.email_invalid: "无效的邮箱地址"
+setting.bark_url_empty: "Bark推送URL不能为空"
+setting.bark_url_invalid: "无效的Bark推送URL"
+setting.gotify_url_empty: "Gotify服务器地址不能为空"
+setting.gotify_token_empty: "Gotify令牌不能为空"
+setting.gotify_url_invalid: "无效的Gotify服务器地址"
+setting.url_must_http: "URL必须以http://或https://开头"
+setting.saved: "设置已更新"
+
+# Deployment messages (io.net)
+deployment.not_enabled: "io.net 模型部署功能未启用或 API 密钥缺失"
+deployment.id_required: "deployment ID 为必填项"
+deployment.container_id_required: "container ID 为必填项"
+deployment.name_empty: "deployment 名称不能为空"
+deployment.name_taken: "deployment 名称已被使用，请选择其他名称"
+deployment.hardware_id_required: "hardware_id 参数为必填项"
+deployment.hardware_invalid_id: "无效的 hardware_id 参数"
+deployment.api_key_required: "api_key 为必填项"
+deployment.invalid_payload: "无效的请求内容"
+deployment.not_found: "未找到容器详情"
+
+# Performance messages
+performance.disk_cache_cleared: "不活跃的磁盘缓存已清理"
+performance.stats_reset: "统计信息已重置"
+performance.gc_executed: "GC 已执行"
+
+# Ability messages
+ability.db_corrupted: "数据库一致性被破坏"
+ability.repair_running: "已经有一个修复任务在运行中，请稍后再试"
+
+# OAuth messages
+oauth.invalid_code: "无效的授权码"
+oauth.get_user_error: "获取用户信息失败"
+oauth.account_used: "该账户已被其他用户绑定"
+
+# Model layer error messages
+redeem.failed: "兑换失败，请稍后重试"
+user.create_default_token_error: "创建默认令牌失败"
+common.uuid_duplicate: "请重试，系统生成的 UUID 竟然重复了！"
+common.invalid_input: "输入不合法"

main.go

@@ -14,6 +14,7 @@ import (
 	"github.com/QuantumNous/new-api/common"
 	"github.com/QuantumNous/new-api/constant"
 	"github.com/QuantumNous/new-api/controller"
+	"github.com/QuantumNous/new-api/i18n"
 	"github.com/QuantumNous/new-api/logger"
 	"github.com/QuantumNous/new-api/middleware"
 	"github.com/QuantumNous/new-api/model"
@@ -151,6 +152,7 @@ func main() {
 	//server.Use(gzip.Gzip(gzip.DefaultCompression))
 	server.Use(middleware.RequestId())
 	server.Use(middleware.PoweredBy())
+	server.Use(middleware.I18n())
 	middleware.SetUpLogger(server)
 	// Initialize session store
 	store := cookie.NewStore([]byte(common.SessionSecret))
@@ -278,5 +280,16 @@ func InitResources() error {
 	// 启动系统监控
 	common.StartSystemMonitor()
 
+	// Initialize i18n
+	err = i18n.Init()
+	if err != nil {
+		common.SysError("failed to initialize i18n: " + err.Error())
+		// Don't return error, i18n is not critical
+	} else {
+		common.SysLog("i18n initialized with languages: " + strings.Join(i18n.SupportedLanguages(), ", "))
+	}
+	// Register user language loader for lazy loading
+	i18n.SetUserLangLoader(model.GetUserLanguage)
+
 	return nil
 }

middleware/auth.go

@@ -132,17 +132,6 @@ func authHelper(c *gin.Context, minRole int) {
 	c.Set("user_group", session.Get("group"))
 	c.Set("use_access_token", useAccessToken)
 
-	//userCache, err := model.GetUserCache(id.(int))
-	//if err != nil {
-	//	c.JSON(http.StatusOK, gin.H{
-	//		"success": false,
-	//		"message": err.Error(),
-	//	})
-	//	c.Abort()
-	//	return
-	//}
-	//userCache.WriteContext(c)
-
 	c.Next()
 }
 

middleware/i18n.go

@@ -0,0 +1,50 @@
+package middleware
+
+import (
+	"github.com/gin-gonic/gin"
+
+	"github.com/QuantumNous/new-api/common"
+	"github.com/QuantumNous/new-api/constant"
+	"github.com/QuantumNous/new-api/dto"
+	"github.com/QuantumNous/new-api/i18n"
+)
+
+// I18n middleware detects and sets the language preference for the request
+func I18n() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		lang := detectLanguage(c)
+		c.Set(string(constant.ContextKeyLanguage), lang)
+		c.Next()
+	}
+}
+
+// detectLanguage determines the language preference for the request
+// Priority: 1. User setting (if logged in) -> 2. Accept-Language header -> 3. Default language
+func detectLanguage(c *gin.Context) string {
+	// 1. Try to get language from user setting (set by auth middleware)
+	if userSetting, ok := common.GetContextKeyType[dto.UserSetting](c, constant.ContextKeyUserSetting); ok {
+		if userSetting.Language != "" && i18n.IsSupported(userSetting.Language) {
+			return userSetting.Language
+		}
+	}
+
+	// 2. Parse Accept-Language header
+	acceptLang := c.GetHeader("Accept-Language")
+	if acceptLang != "" {
+		lang := i18n.ParseAcceptLanguage(acceptLang)
+		if i18n.IsSupported(lang) {
+			return lang
+		}
+	}
+
+	// 3. Return default language
+	return i18n.DefaultLang
+}
+
+// GetLanguage returns the current language from gin context
+func GetLanguage(c *gin.Context) string {
+	if lang := c.GetString(string(constant.ContextKeyLanguage)); lang != "" {
+		return lang
+	}
+	return i18n.DefaultLang
+}

model/redemption.go

@@ -11,6 +11,9 @@ import (
 	"gorm.io/gorm"
 )
 
+// ErrRedeemFailed is returned when redemption fails due to database error
+var ErrRedeemFailed = errors.New("redeem.failed")
+
 type Redemption struct {
 	Id           int            `json:"id"`
 	UserId       int            `json:"user_id"`
@@ -149,7 +152,7 @@ func Redeem(key string, userId int) (quota int, err error) {
 	})
 	if err != nil {
 		common.SysError("redemption failed: " + err.Error())
-		return 0, errors.New("兑换失败，请稍后重试")
+		return 0, ErrRedeemFailed
 	}
 	RecordLog(userId, LogTypeTopup, fmt.Sprintf("通过兑换码充值 %s，兑换码ID %d", logger.LogQuota(redemption.Quota), redemption.Id))
 	return redemption.Quota, nil

model/user_cache.go

@@ -221,3 +221,13 @@ func updateUserSettingCache(userId int, setting string) error {
 	}
 	return common.RedisHSetField(getUserCacheKey(userId), "Setting", setting)
 }
+
+// GetUserLanguage returns the user's language preference from cache
+// Uses the existing GetUserCache mechanism for efficiency
+func GetUserLanguage(userId int) string {
+	userCache, err := GetUserCache(userId)
+	if err != nil {
+		return ""
+	}
+	return userCache.GetSetting().Language
+}

web/src/components/settings/PersonalSetting.jsx

@@ -39,6 +39,7 @@ import { useTranslation } from 'react-i18next';
 import UserInfoHeader from './personal/components/UserInfoHeader';
 import AccountManagement from './personal/cards/AccountManagement';
 import NotificationSettings from './personal/cards/NotificationSettings';
+import PreferencesSettings from './personal/cards/PreferencesSettings';
 import CheckinCalendar from './personal/cards/CheckinCalendar';
 import EmailBindModal from './personal/modals/EmailBindModal';
 import WeChatBindModal from './personal/modals/WeChatBindModal';
@@ -463,24 +464,29 @@ const PersonalSetting = () => {
           {/* 账户管理和其他设置 */}
           <div className='grid grid-cols-1 xl:grid-cols-2 items-start gap-4 md:gap-6 mt-4 md:mt-6'>
             {/* 左侧：账户管理设置 */}
-            <AccountManagement
-              t={t}
-              userState={userState}
-              status={status}
-              systemToken={systemToken}
-              setShowEmailBindModal={setShowEmailBindModal}
-              setShowWeChatBindModal={setShowWeChatBindModal}
-              generateAccessToken={generateAccessToken}
-              handleSystemTokenClick={handleSystemTokenClick}
-              setShowChangePasswordModal={setShowChangePasswordModal}
-              setShowAccountDeleteModal={setShowAccountDeleteModal}
-              passkeyStatus={passkeyStatus}
-              passkeySupported={passkeySupported}
-              passkeyRegisterLoading={passkeyRegisterLoading}
-              passkeyDeleteLoading={passkeyDeleteLoading}
-              onPasskeyRegister={handleRegisterPasskey}
-              onPasskeyDelete={handleRemovePasskey}
-            />
+            <div className='flex flex-col gap-4 md:gap-6'>
+              <AccountManagement
+                t={t}
+                userState={userState}
+                status={status}
+                systemToken={systemToken}
+                setShowEmailBindModal={setShowEmailBindModal}
+                setShowWeChatBindModal={setShowWeChatBindModal}
+                generateAccessToken={generateAccessToken}
+                handleSystemTokenClick={handleSystemTokenClick}
+                setShowChangePasswordModal={setShowChangePasswordModal}
+                setShowAccountDeleteModal={setShowAccountDeleteModal}
+                passkeyStatus={passkeyStatus}
+                passkeySupported={passkeySupported}
+                passkeyRegisterLoading={passkeyRegisterLoading}
+                passkeyDeleteLoading={passkeyDeleteLoading}
+                onPasskeyRegister={handleRegisterPasskey}
+                onPasskeyDelete={handleRemovePasskey}
+              />
+
+              {/* 偏好设置（语言等） */}
+              <PreferencesSettings t={t} />
+            </div>
 
             {/* 右侧：其他设置 */}
             <NotificationSettings

web/src/components/settings/personal/cards/PreferencesSettings.jsx

@@ -0,0 +1,186 @@
+/*
+Copyright (C) 2025 QuantumNous
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as
+published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+For commercial licensing, please contact support@quantumnous.com
+*/
+
+import React, { useState, useEffect, useContext } from 'react';
+import { Card, Select, Typography, Avatar } from '@douyinfe/semi-ui';
+import { Languages } from 'lucide-react';
+import { useTranslation } from 'react-i18next';
+import { API, showSuccess, showError } from '../../../../helpers';
+import { UserContext } from '../../../../context/User';
+
+// Language options with native names and flags
+const languageOptions = [
+  { value: 'zh', label: '中文', flag: '🇨🇳' },
+  { value: 'en', label: 'English', flag: '🇺🇸' },
+  { value: 'fr', label: 'Français', flag: '🇫🇷' },
+  { value: 'ru', label: 'Русский', flag: '🇷🇺' },
+  { value: 'ja', label: '日本語', flag: '🇯🇵' },
+  { value: 'vi', label: 'Tiếng Việt', flag: '🇻🇳' },
+];
+
+const PreferencesSettings = ({ t }) => {
+  const { i18n } = useTranslation();
+  const [userState, userDispatch] = useContext(UserContext);
+  const [currentLanguage, setCurrentLanguage] = useState(i18n.language || 'zh');
+  const [loading, setLoading] = useState(false);
+
+  // Load saved language preference from user settings
+  useEffect(() => {
+    if (userState?.user?.setting) {
+      try {
+        const settings = JSON.parse(userState.user.setting);
+        if (settings.language) {
+          setCurrentLanguage(settings.language);
+          // Sync i18n with saved preference
+          if (i18n.language !== settings.language) {
+            i18n.changeLanguage(settings.language);
+          }
+        }
+      } catch (e) {
+        // Ignore parse errors
+      }
+    }
+  }, [userState?.user?.setting, i18n]);
+
+  const handleLanguagePreferenceChange = async (lang) => {
+    if (lang === currentLanguage) return;
+
+    setLoading(true);
+    const previousLang = currentLanguage;
+
+    try {
+      // Update language immediately for responsive UX
+      setCurrentLanguage(lang);
+      i18n.changeLanguage(lang);
+
+      // Save to backend
+      const res = await API.put('/api/user/self', {
+        language: lang,
+      });
+
+      if (res.data.success) {
+        showSuccess(t('语言偏好已保存'));
+        // Update user context with new setting
+        if (userState?.user?.setting) {
+          try {
+            const settings = JSON.parse(userState.user.setting);
+            settings.language = lang;
+            userDispatch({
+              type: 'login',
+              payload: {
+                ...userState.user,
+                setting: JSON.stringify(settings),
+              },
+            });
+          } catch (e) {
+            // Ignore
+          }
+        }
+      } else {
+        showError(res.data.message || t('保存失败'));
+        // Revert on error
+        setCurrentLanguage(previousLang);
+        i18n.changeLanguage(previousLang);
+      }
+    } catch (error) {
+      showError(t('保存失败，请重试'));
+      // Revert on error
+      setCurrentLanguage(previousLang);
+      i18n.changeLanguage(previousLang);
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  return (
+    <Card className='!rounded-2xl shadow-sm border-0'>
+      {/* Card Header */}
+      <div className='flex items-center mb-4'>
+        <Avatar size='small' color='violet' className='mr-3 shadow-md'>
+          <Languages size={16} />
+        </Avatar>
+        <div>
+          <Typography.Text className='text-lg font-medium'>
+            {t('偏好设置')}
+          </Typography.Text>
+          <div className='text-xs text-gray-600 dark:text-gray-400'>
+            {t('界面语言和其他个人偏好')}
+          </div>
+        </div>
+      </div>
+
+      {/* Language Setting Card */}
+      <Card className='!rounded-xl border dark:border-gray-700'>
+        <div className='flex flex-col sm:flex-row items-start sm:items-center sm:justify-between gap-4'>
+          <div className='flex items-start w-full sm:w-auto'>
+            <div className='w-12 h-12 rounded-full bg-violet-50 dark:bg-violet-900/30 flex items-center justify-center mr-4 flex-shrink-0'>
+              <Languages
+                size={20}
+                className='text-violet-600 dark:text-violet-400'
+              />
+            </div>
+            <div>
+              <Typography.Title heading={6} className='mb-1'>
+                {t('语言偏好')}
+              </Typography.Title>
+              <Typography.Text type='tertiary' className='text-sm'>
+                {t('选择您的首选界面语言，设置将自动保存并同步到所有设备')}
+              </Typography.Text>
+            </div>
+          </div>
+          <Select
+            value={currentLanguage}
+            onChange={handleLanguagePreferenceChange}
+            style={{ width: 180 }}
+            loading={loading}
+            optionList={languageOptions.map((opt) => ({
+              value: opt.value,
+              label: (
+                <div className='flex items-center gap-2'>
+                  <span>{opt.flag}</span>
+                  <span>{opt.label}</span>
+                </div>
+              ),
+            }))}
+            renderSelectedItem={(optionNode) => {
+              const selected = languageOptions.find(
+                (opt) => opt.value === optionNode.value,
+              );
+              return (
+                <div className='flex items-center gap-2'>
+                  <span>{selected?.flag}</span>
+                  <span>{selected?.label}</span>
+                </div>
+              );
+            }}
+          />
+        </div>
+      </Card>
+
+      {/* Additional info */}
+      <div className='mt-4 text-xs text-gray-500 dark:text-gray-400'>
+        <Typography.Text type='tertiary'>
+          {t('提示：语言偏好会同步到您登录的所有设备，并影响API返回的错误消息语言。')}
+        </Typography.Text>
+      </div>
+    </Card>
+  );
+};
+
+export default PreferencesSettings;

web/src/context/User/index.jsx

@@ -17,7 +17,8 @@ along with this program. If not, see <https://www.gnu.org/licenses/>.
 For commercial licensing, please contact support@quantumnous.com
 */
 
-import React from 'react';
+import React, { useEffect } from 'react';
+import { useTranslation } from 'react-i18next';
 import { reducer, initialState } from './reducer';
 
 export const UserContext = React.createContext({
@@ -27,6 +28,21 @@ export const UserContext = React.createContext({
 
 export const UserProvider = ({ children }) => {
   const [state, dispatch] = React.useReducer(reducer, initialState);
+  const { i18n } = useTranslation();
+
+  // Sync language preference when user data is loaded
+  useEffect(() => {
+    if (state.user?.setting) {
+      try {
+        const settings = JSON.parse(state.user.setting);
+        if (settings.language && settings.language !== i18n.language) {
+          i18n.changeLanguage(settings.language);
+        }
+      } catch (e) {
+        // Ignore parse errors
+      }
+    }
+  }, [state.user?.setting, i18n]);
 
   return (
     <UserContext.Provider value={[state, dispatch]}>

web/src/hooks/channels/useChannelsData.jsx

@@ -491,7 +491,7 @@ export const useChannelsData = () => {
     }
     const { success, message } = res.data;
     if (success) {
-      showSuccess('操作成功完成！');
+      showSuccess(t('操作成功完成！'));
       let newChannels = [...channels];
       for (let i = 0; i < newChannels.length; i++) {
         if (newChannels[i].tag === tag) {

web/src/hooks/common/useHeaderBar.js

@@ -146,10 +146,41 @@ export const useHeaderBar = ({ onMobileMenuToggle, drawerOpen }) => {
   }, [navigate, t, userDispatch]);
 
   const handleLanguageChange = useCallback(
-    (lang) => {
+    async (lang) => {
+      // Change language immediately for responsive UX
       i18n.changeLanguage(lang);
+
+      // If user is logged in, save preference to backend
+      if (userState?.user?.id) {
+        try {
+          const res = await API.put('/api/user/self', {
+            language: lang,
+          });
+          if (res.data.success) {
+            // Update user context with new setting
+            if (userState?.user?.setting) {
+              try {
+                const settings = JSON.parse(userState.user.setting);
+                settings.language = lang;
+                userDispatch({
+                  type: 'login',
+                  payload: {
+                    ...userState.user,
+                    setting: JSON.stringify(settings),
+                  },
+                });
+              } catch (e) {
+                // Ignore parse errors
+              }
+            }
+          }
+        } catch (error) {
+          // Silently ignore errors - language was already changed locally
+          console.error('Failed to save language preference:', error);
+        }
+      }
     },
-    [i18n],
+    [i18n, userState, userDispatch],
   );
 
   const handleThemeToggle = useCallback(

web/src/hooks/redemptions/useRedemptionsData.jsx

@@ -145,7 +145,7 @@ export const useRedemptionsData = () => {
 
       const { success, message } = res.data;
       if (success) {
-        showSuccess('操作成功完成！');
+        showSuccess(t('操作成功完成！'));
         let redemption = res.data.data;
         let newRedemptions = [...redemptions];
         if (action !== REDEMPTION_ACTIONS.DELETE) {

web/src/hooks/tokens/useTokensData.jsx

@@ -174,7 +174,7 @@ export const useTokensData = (openFluentNotification) => {
     }
     const { success, message } = res.data;
     if (success) {
-      showSuccess('操作成功完成！');
+      showSuccess(t('操作成功完成！'));
       let token = res.data.data;
       let newTokens = [...tokens];
       if (action !== 'delete') {

web/src/hooks/users/useUsersData.jsx

@@ -132,7 +132,7 @@ export const useUsersData = () => {
 
     const { success, message } = res.data;
     if (success) {
-      showSuccess('操作成功完成！');
+      showSuccess(t('操作成功完成！'));
       const user = res.data.data;
 
       // Create a new array and new object to ensure React detects changes

web/src/i18n/locales/en.json

@@ -102,6 +102,7 @@
     "Gotify服务器地址": "Gotify server address",
     "Gotify服务器地址必须以http://或https://开头": "Gotify server address must start with http:// or https://",
     "Gotify通知": "Gotify notification",
+    "Grok设置": "Grok Settings",
     "GPU/容器": "GPU/Container",
     "GPU数量": "Number of GPUs",
     "Homepage URL 填": "Fill in the Homepage URL",
@@ -446,6 +447,7 @@
     "兑换人ID": "Redeemer ID",
     "兑换成功！": "Redemption successful!",
     "兑换码充值": "Redemption code recharge",
+    "清理不活跃缓存": "Clean up inactive cache",
     "兑换码创建成功": "Redemption Code Created",
     "兑换码创建成功，是否下载兑换码？": "Redemption code created successfully. Do you want to download it?",
     "兑换码创建成功！": "Redemption code created successfully!",
@@ -695,8 +697,10 @@
     "启用请求透传": "Enable request pass-through",
     "启用额度消费日志记录": "Enable quota consumption logging",
     "启用验证": "Enable Authentication",
+    "启用违规扣费": "Enable violation deduction",
     "周": "week",
     "和": "and",
+    "和Claude不同，默认情况下Gemini的思考模型会自动决定要不要思考，就算不开启适配模型也可以正常使用，如果您需要计费，推荐设置无后缀模型价格按思考价格设置。支持使用 gemini-2.5-pro-preview-06-05-thinking-128 格式来精确传递思考预算。": "Unlike Claude, Gemini thinking models automatically decide whether to think by default. They work normally even without the adapter enabled. If you need billing, set the price of models without suffix to the thinking price. Use format like gemini-2.5-pro-preview-06-05-thinking-128 to specify exact thinking budget.",
     "响应": "Response",
     "响应时间": "Response time",
     "商品价格 ID": "Product Price ID",
@@ -810,6 +814,7 @@
     "完整的 Base URL，支持变量{model}": "Complete Base URL, supports variable {model}",
     "官方": "Official",
     "官方文档": "Official documentation",
+    "官方说明": "Official documentation",
     "官方模型同步": "Official models sync",
     "定价模式": "Pricing Mode",
     "定时测试所有通道": "Periodically test all channels",
@@ -996,6 +1001,7 @@
     "开启后，将定期发送ping数据保持连接活跃": "After enabling, ping data will be sent periodically to keep the connection active",
     "开启后，当前分组渠道失败时会按顺序尝试下一个分组的渠道": "After enabling, when the current group channel fails, it will try the next group's channel in order",
     "开启后，所有请求将直接透传给上游，不会进行任何处理（重定向和渠道适配也将失效）,请谨慎开启": "When enabled, all requests will be directly forwarded to the upstream without any processing (redirects and channel adaptation will also be disabled). Please enable with caution.",
+    "开启后，违规请求将额外扣费。": "When enabled, violation requests will incur additional charges.",
     "开启后不限制：必须设置模型倍率": "After enabling, no limit: must set model ratio",
     "开启后未登录用户无法访问模型广场": "When enabled, unauthenticated users cannot access the model marketplace",
     "开启批量操作": "Enable batch selection",
@@ -1752,6 +1758,7 @@
     "确认操作": "Confirm Operation",
     "确认新密码": "Confirm new password",
     "确认清除历史日志": "Confirm clear historical logs",
+    "确认清理不活跃的磁盘缓存？": "Confirm cleanup of inactive disk cache?",
     "确认禁用": "Confirm disable",
     "确认补单": "Confirm Order Completion",
     "确认解绑": "Confirm Unbind",
@@ -1836,6 +1843,17 @@
     "系统文档和帮助信息": "System documentation and help information",
     "系统消息": "System message",
     "系统管理功能": "System management functions",
+    "系统性能监控": "System Performance Monitoring",
+    "启用性能监控后，当系统资源使用率超过设定阈值时，将拒绝新的 Relay 请求 (/v1, /v1beta 等)，以保护系统稳定性。": "When performance monitoring is enabled and system resource usage exceeds the set threshold, new Relay requests (/v1, /v1beta, etc.) will be rejected to protect system stability.",
+    "启用性能监控": "Enable Performance Monitoring",
+    "超过阈值时拒绝新请求": "Reject new requests when threshold is exceeded",
+    "CPU 阈值 (%)": "CPU Threshold (%)",
+    "CPU 使用率超过此值时拒绝请求": "Reject requests when CPU usage exceeds this value",
+    "内存 阈值 (%)": "Memory Threshold (%)",
+    "内存使用率超过此值时拒绝请求": "Reject requests when memory usage exceeds this value",
+    "磁盘 阈值 (%)": "Disk Threshold (%)",
+    "磁盘使用率超过此值时拒绝请求": "Reject requests when disk usage exceeds this value",
+    "保存性能设置": "Save Performance Settings",
     "系统设置": "System Settings",
     "系统访问令牌": "System Access Token",
     "约": "Approximately",
@@ -2372,7 +2390,10 @@
     "运行时长（小时）": "Runtime Duration (hours)",
     "返回修改": "Go back and edit",
     "返回登录": "Return to Login",
+    "违规扣费金额": "Violation deduction amount",
     "这是重复键中的最后一个，其值将被使用": "This is the last one among duplicate keys, and its value will be used",
+    "这是基础金额，实际扣费 = 基础金额 x 系统分组倍率。": "This is the base amount. Actual deduction = base amount × system group ratio.",
+    "这将删除超过 10 分钟未使用的临时缓存文件": "This will delete temporary cache files that have not been used for more than 10 minutes",
     "进度": "Progress",
     "进行中": "Ongoing",
     "进行该操作时，可能导致渠道访问错误，请仅在数据库出现问题时使用": "When performing this operation, it may cause channel access errors. Please only use it when there is a problem with the database.",
@@ -2768,6 +2789,12 @@
     "GC execution failed": "GC execution failed",
     "Cache Directory": "Cache Directory",
     "Available": "Available",
-    "输出价格": "Output Price"
+    "输出价格": "Output Price",
+    "偏好设置": "Preferences",
+    "界面语言和其他个人偏好": "Interface language and other personal preferences",
+    "语言偏好": "Language Preference",
+    "选择您的首选界面语言，设置将自动保存并同步到所有设备": "Select your preferred interface language. Settings will be saved automatically and synced across all devices",
+    "语言偏好已保存": "Language preference saved",
+    "提示：语言偏好会同步到您登录的所有设备，并影响API返回的错误消息语言。": "Note: Language preference syncs across all your logged-in devices and affects the language of API error messages."
   }
 }

web/src/i18n/locales/fr.json

@@ -105,6 +105,7 @@
     "Gotify服务器地址": "Adresse du serveur Gotify",
     "Gotify服务器地址必须以http://或https://开头": "L'adresse du serveur Gotify doit commencer par http:// ou https://",
     "Gotify通知": "Notification Gotify",
+    "Grok设置": "Paramètres Grok",
     "GPU/容器": "GPU/Container",
     "GPU数量": "Number of GPUs",
     "Homepage URL 填": "Remplir l'URL de la page d'accueil",
@@ -448,6 +449,7 @@
     "兑换人ID": "ID du demandeur",
     "兑换成功！": "Échange réussi !",
     "兑换码充值": "Recharge par code d'échange",
+    "清理不活跃缓存": "Nettoyer le cache inactif",
     "兑换码创建成功": "Code d'échange créé",
     "兑换码创建成功，是否下载兑换码？": "Code d'échange créé avec succès. Voulez-vous le télécharger ?",
     "兑换码创建成功！": "Code d'échange créé avec succès !",
@@ -700,8 +702,10 @@
     "启用请求透传": "Activer la transmission de la requête",
     "启用额度消费日志记录": "Activer la journalisation de la consommation de quota",
     "启用验证": "Activer l'authentification",
+    "启用违规扣费": "Activer la déduction de violation",
     "周": "semaine",
     "和": "et",
+    "和Claude不同，默认情况下Gemini的思考模型会自动决定要不要思考，就算不开启适配模型也可以正常使用，如果您需要计费，推荐设置无后缀模型价格按思考价格设置。支持使用 gemini-2.5-pro-preview-06-05-thinking-128 格式来精确传递思考预算。": "Contrairement à Claude, les modèles de réflexion Gemini décident automatiquement s'ils doivent réfléchir. Ils fonctionnent normalement même sans l'adaptateur activé. Si vous avez besoin de facturation, définissez le prix des modèles sans suffixe au prix de réflexion. Utilisez un format comme gemini-2.5-pro-preview-06-05-thinking-128 pour spécifier le budget de réflexion exact.",
     "响应": "Réponse",
     "响应时间": "Temps de réponse",
     "商品价格 ID": "ID du prix du produit",
@@ -815,6 +819,7 @@
     "完整的 Base URL，支持变量{model}": "URL de base complète, prend en charge la variable {model}",
     "官方": "Officiel",
     "官方文档": "Documentation officielle",
+    "官方说明": "Documentation officielle",
     "官方模型同步": "Synchronisation des modèles officiels",
     "定价模式": "Mode de tarification",
     "定时测试所有通道": "Tester périodiquement tous les canaux",
@@ -1006,6 +1011,7 @@
     "开启后，将定期发送ping数据保持连接活跃": "Après activation, des données ping seront envoyées périodiquement pour maintenir la connexion active",
     "开启后，当前分组渠道失败时会按顺序尝试下一个分组的渠道": "Après activation, lorsque le canal du groupe actuel échoue, il essaiera le canal du groupe suivant dans l'ordre",
     "开启后，所有请求将直接透传给上游，不会进行任何处理（重定向和渠道适配也将失效）,请谨慎开启": "Après activation, toutes les requêtes seront directement transmises en amont sans aucun traitement (la redirection et l'adaptation de canal seront également désactivées), veuillez activer avec prudence",
+    "开启后，违规请求将额外扣费。": "Lorsqu'il est activé, les requêtes en violation entraîneront des frais supplémentaires.",
     "开启后不限制：必须设置模型倍率": "Après l'activation, aucune limite : le ratio de modèle doit être défini",
     "开启后未登录用户无法访问模型广场": "Lorsqu'il est activé, les utilisateurs non authentifiés ne peuvent pas accéder à la place du marché des modèles",
     "开启批量操作": "Activer la sélection par lots",
@@ -1764,6 +1770,7 @@
     "确认操作": "Confirm Operation",
     "确认新密码": "Confirmer le nouveau mot de passe",
     "确认清除历史日志": "Confirmer l'effacement des journaux historiques",
+    "确认清理不活跃的磁盘缓存？": "Confirmer le nettoyage du cache disque inactif ?",
     "确认禁用": "Confirmer la désactivation",
     "确认补单": "Confirmer la complétion",
     "确认解绑": "Confirmer la dissociation",
@@ -1848,6 +1855,17 @@
     "系统文档和帮助信息": "Documentation système et informations d'aide",
     "系统消息": "Messages système",
     "系统管理功能": "Fonctions de gestion du système",
+    "系统性能监控": "Surveillance des performances du système",
+    "启用性能监控后，当系统资源使用率超过设定阈值时，将拒绝新的 Relay 请求 (/v1, /v1beta 等)，以保护系统稳定性。": "Lorsque la surveillance des performances est activée et que l'utilisation des ressources système dépasse le seuil défini, les nouvelles requêtes Relay (/v1, /v1beta, etc.) seront rejetées pour protéger la stabilité du système.",
+    "启用性能监控": "Activer la surveillance des performances",
+    "超过阈值时拒绝新请求": "Rejeter les nouvelles requêtes lorsque le seuil est dépassé",
+    "CPU 阈值 (%)": "Seuil CPU (%)",
+    "CPU 使用率超过此值时拒绝请求": "Rejeter les requêtes lorsque l'utilisation du CPU dépasse cette valeur",
+    "内存 阈值 (%)": "Seuil mémoire (%)",
+    "内存使用率超过此值时拒绝请求": "Rejeter les requêtes lorsque l'utilisation de la mémoire dépasse cette valeur",
+    "磁盘 阈值 (%)": "Seuil disque (%)",
+    "磁盘使用率超过此值时拒绝请求": "Rejeter les requêtes lorsque l'utilisation du disque dépasse cette valeur",
+    "保存性能设置": "Enregistrer les paramètres de performance",
     "系统设置": "Système",
     "系统访问令牌": "Jeton d'accès au système",
     "约": "Environ",
@@ -2336,7 +2354,10 @@
     "运行时长（小时）": "Runtime Duration (hours)",
     "返回修改": "Revenir pour modifier",
     "返回登录": "Retour à la connexion",
+    "违规扣费金额": "Montant de la déduction de violation",
     "这是重复键中的最后一个，其值将被使用": "Ceci est la dernière clé dupliquée, sa valeur sera utilisée",
+    "这是基础金额，实际扣费 = 基础金额 x 系统分组倍率。": "Ceci est le montant de base. Déduction réelle = montant de base × ratio de groupe système.",
+    "这将删除超过 10 分钟未使用的临时缓存文件": "Cela supprimera les fichiers de cache temporaires non utilisés depuis plus de 10 minutes",
     "进度": "calendrier",
     "进行中": "En cours",
     "进行该操作时，可能导致渠道访问错误，请仅在数据库出现问题时使用": "Lors de cette opération, cela peut entraîner des erreurs d'accès au canal. Veuillez ne l'utiliser que lorsqu'il y a un problème avec la base de données.",

web/src/i18n/locales/ja.json

@@ -101,6 +101,7 @@
     "Gotify服务器地址": "GotifyサーバーURL",
     "Gotify服务器地址必须以http://或https://开头": "GotifyサーバーURLは、http://またはhttps://で始まることが必須です",
     "Gotify通知": "Gotify通知",
+    "Grok设置": "Grok設定",
     "GPU/容器": "GPU/Container",
     "GPU数量": "Number of GPUs",
     "Homepage URL 填": "ホームページURLを入力してください",
@@ -444,6 +445,7 @@
     "兑换人ID": "引き換えユーザーID",
     "兑换成功！": "引き換えに成功しました",
     "兑换码充值": "引き換えコードによるチャージ",
+    "清理不活跃缓存": "非アクティブなキャッシュをクリーンアップ",
     "兑换码创建成功": "引き換えコードの作成に成功しました",
     "兑换码创建成功，是否下载兑换码？": "引き換えコードの作成に成功しました。ダウンロードしますか？",
     "兑换码创建成功！": "引き換えコードの作成に成功しました",
@@ -691,8 +693,10 @@
     "启用请求透传": "リクエストパススルーを有効にする",
     "启用额度消费日志记录": "クォータ消費のログ記録を有効にする",
     "启用验证": "認証を有効にする",
+    "启用违规扣费": "違反課金を有効にする",
     "周": "週",
     "和": "および",
+    "和Claude不同，默认情况下Gemini的思考模型会自动决定要不要思考，就算不开启适配模型也可以正常使用，如果您需要计费，推荐设置无后缀模型价格按思考価格設置。支持使用 gemini-2.5-pro-preview-06-05-thinking-128 格式来精确传递思考预算。": "Claudeとは異なり、Geminiの思考モデルはデフォルトで思考するかどうかを自動的に決定します。アダプターを有効にしなくても正常に動作します。課金が必要な場合は、サフィックスなしモデルの価格を思考価格に設定してください。gemini-2.5-pro-preview-06-05-thinking-128のような形式を使用して、正確な思考予算を指定できます。",
     "响应": "レスポンス",
     "响应时间": "応答時間",
     "商品价格 ID": "料金ID",
@@ -806,6 +810,7 @@
     "完整的 Base URL，支持变量{model}": "完全なベースURL（変数{model}に対応）",
     "官方": "公式",
     "官方文档": "公式ドキュメント",
+    "官方说明": "公式ドキュメント",
     "官方模型同步": "公式モデルの同期",
     "定价模式": "課金タイプ",
     "定时测试所有通道": "すべてのチャネルの定期テスト",
@@ -991,6 +996,7 @@
     "开启后，将定期发送ping数据保持连接活跃": "有効にすると、接続をアクティブに保つためにpingデータが定期的に送信されます",
     "开启后，当前分组渠道失败时会按顺序尝试下一个分组的渠道": "有効にすると、現在のグループチャネルが失敗した場合、次のグループのチャネルを順番に試行します",
     "开启后，所有请求将直接透传给上游，不会进行任何处理（重定向和渠道适配也将失效）,请谨慎开启": "有効にすると、すべてのリクエストは直接アップストリームにパススルーされ、いかなる処理も行われません（リダイレクトとチャネルの自動調整も無効になります）。有効にする際はご注意ください",
+    "开启后，违规请求将额外扣费。": "有効にすると、違反リクエストには追加料金が発生します。",
     "开启后不限制：必须设置模型倍率": "有効化後は制限なし：モデル倍率の設定が必須",
     "开启后未登录用户无法访问模型广场": "有効にすると、ログインしていないユーザーはモデルマーケットプレイスにアクセスできなくなります",
     "开启批量操作": "一括操作を有効にする",
@@ -1747,6 +1753,7 @@
     "确认操作": "Confirm Operation",
     "确认新密码": "新しいパスワードの確認",
     "确认清除历史日志": "履歴のクリアの確認",
+    "确认清理不活跃的磁盘缓存？": "非アクティブなディスクキャッシュをクリーンアップしますか？",
     "确认禁用": "無効化の確認",
     "确认补单": "手動チャージの確認",
     "确认解绑": "連携解除の確認",
@@ -1831,6 +1838,17 @@
     "系统文档和帮助信息": "システムのドキュメントとヘルプ",
     "系统消息": "システムメッセージ",
     "系统管理功能": "システム管理機能",
+    "系统性能监控": "システムパフォーマンス監視",
+    "启用性能监控后，当系统资源使用率超过设定阈值时，将拒绝新的 Relay 请求 (/v1, /v1beta 等)，以保护系统稳定性。": "パフォーマンス監視が有効で、システムリソース使用率が設定されたしきい値を超えた場合、システムの安定性を保護するために新しいRelayリクエスト（/v1, /v1betaなど）は拒否されます。",
+    "启用性能监控": "パフォーマンス監視を有効にする",
+    "超过阈值时拒绝新请求": "閾値を超えた場合に新しいリクエストを拒否する",
+    "CPU 阈值 (%)": "CPUしきい値 (%)",
+    "CPU 使用率超过此值时拒绝请求": "CPU使用率がこの値を超えた場合にリクエストを拒否",
+    "内存 阈值 (%)": "メモリしきい値 (%)",
+    "内存使用率超过此值时拒绝请求": "メモリ使用率がこの値を超えた場合にリクエストを拒否",
+    "磁盘 阈值 (%)": "ディスクしきい値 (%)",
+    "磁盘使用率超过此值时拒绝请求": "ディスク使用率がこの値を超えた場合にリクエストを拒否",
+    "保存性能设置": "パフォーマンス設定を保存",
     "系统设置": "システム設定",
     "系统访问令牌": "システムアクセストークン",
     "约": "約",
@@ -2319,7 +2337,10 @@
     "运行时长（小时）": "Runtime Duration (hours)",
     "返回修改": "Go back and edit",
     "返回登录": "ログインに戻る",
+    "违规扣费金额": "違反課金金額",
     "这是重复键中的最后一个，其值将被使用": "重複するキーのうち、最後のキーの値が使用されます",
+    "这是基础金额，实际扣费 = 基础金额 x 系统分组倍率。": "これは基本金額です。実際の課金 = 基本金額 × システムグループ倍率。",
+    "这将删除超过 10 分钟未使用的临时缓存文件": "10分以上使用されていない一時キャッシュファイルを削除します",
     "进度": "進捗",
     "进行中": "進行中",
     "进行该操作时，可能导致渠道访问错误，请仅在数据库出现问题时使用": "この操作の実行時、チャネルへのアクセスエラーが発生する可能性があります。データベースに問題がある場合のみ使用してください",

web/src/i18n/locales/ru.json

@@ -108,6 +108,7 @@
     "Gotify服务器地址": "Адрес сервера Gotify",
     "Gotify服务器地址必须以http://或https://开头": "Адрес сервера Gotify должен начинаться с http:// или https://",
     "Gotify通知": "Уведомления Gotify",
+    "Grok设置": "Настройки Grok",
     "GPU/容器": "GPU/Container",
     "GPU数量": "Number of GPUs",
     "Homepage URL 填": "URL домашней страницы:",
@@ -451,6 +452,7 @@
     "兑换人ID": "ID обменщика",
     "兑换成功！": "Обмен успешен!",
     "兑换码充值": "Пополнение кодом купона",
+    "清理不活跃缓存": "Очистить неактивный кэш",
     "兑换码创建成功": "Код купона успешно создан",
     "兑换码创建成功，是否下载兑换码？": "Код купона успешно создан, скачать код купона?",
     "兑换码创建成功！": "Код купона успешно создан!",
@@ -706,8 +708,10 @@
     "启用请求透传": "Включить прозрачную передачу запросов",
     "启用额度消费日志记录": "Включить журналирование потребления квоты",
     "启用验证": "Включить проверку",
+    "启用违规扣费": "Включить удержание за нарушения",
     "周": "Неделя",
     "和": "и",
+    "和Claude不同，默认情况下Gemini的思考模型会自动决定要不要思考，就算不开启适配模型也可以正常使用，如果您需要计费，推荐设置无后缀模型价格按思考价格设置。支持使用 gemini-2.5-pro-preview-06-05-thinking-128 格式来精确传递思考预算。": "В отличие от Claude, модели мышления Gemini автоматически решают, использовать ли режим мышления. Они работают нормально даже без включённого адаптера. Если нужна тарификация, установите цену моделей без суффикса на цену мышления. Используйте формат gemini-2.5-pro-preview-06-05-thinking-128 для точного указания бюджета мышления.",
     "响应": "Ответ",
     "响应时间": "Время ответа",
     "商品价格 ID": "ID цены товара",
@@ -821,6 +825,7 @@
     "完整的 Base URL，支持变量{model}": "Полный Base URL, поддерживает переменную {model}",
     "官方": "Официальный",
     "官方文档": "Официальная документация",
+    "官方说明": "Официальная документация",
     "官方模型同步": "Синхронизация официальных моделей",
     "定价模式": "Режим ценообразования",
     "定时测试所有通道": "Периодическое тестирование всех каналов",
@@ -1017,6 +1022,7 @@
     "开启后，将定期发送ping数据保持连接活跃": "После включения будет периодически отправляться ping-данные для поддержания активности соединения",
     "开启后，当前分组渠道失败时会按顺序尝试下一个分组的渠道": "После включения, когда канал текущей группы не работает, он будет пытаться использовать канал следующей группы по порядку",
     "开启后，所有请求将直接透传给上游，不会进行任何处理（重定向和渠道适配也将失效）,请谨慎开启": "После включения все запросы будут напрямую передаваться upstream без какой-либо обработки (перенаправление и адаптация каналов также будут отключены), включайте с осторожностью",
+    "开启后，违规请求将额外扣费。": "При включении за нарушающие запросы будет взиматься дополнительная плата.",
     "开启后不限制：必须设置模型倍率": "После включения без ограничений: необходимо установить множители моделей",
     "开启后未登录用户无法访问模型广场": "После включения незарегистрированные пользователи не смогут получить доступ к площади моделей",
     "开启批量操作": "Включить пакетные операции",
@@ -1777,6 +1783,7 @@
     "确认操作": "Confirm Operation",
     "确认新密码": "Подтвердить новый пароль",
     "确认清除历史日志": "Подтвердить очистку истории логов",
+    "确认清理不活跃的磁盘缓存？": "Подтвердить очистку неактивного дискового кэша?",
     "确认禁用": "Подтвердить отключение",
     "确认补单": "Подтвердить дополнение заказа",
     "确认解绑": "Подтвердить отвязку",
@@ -1861,6 +1868,17 @@
     "系统文档和帮助信息": "Системная документация и справочная информация",
     "系统消息": "Системные сообщения",
     "系统管理功能": "Функции системного управления",
+    "系统性能监控": "Мониторинг производительности системы",
+    "启用性能监控后，当系统资源使用率超过设定阈值时，将拒绝新的 Relay 请求 (/v1, /v1beta 等)，以保护系统稳定性。": "При включённом мониторинге производительности, когда использование системных ресурсов превышает установленный порог, новые Relay-запросы (/v1, /v1beta и т.д.) будут отклоняться для защиты стабильности системы.",
+    "启用性能监控": "Включить мониторинг производительности",
+    "超过阈值时拒绝新请求": "Отклонять новые запросы при превышении порога",
+    "CPU 阈值 (%)": "Порог CPU (%)",
+    "CPU 使用率超过此值时拒绝请求": "Отклонять запросы, когда использование CPU превышает это значение",
+    "内存 阈值 (%)": "Порог памяти (%)",
+    "内存使用率超过此值时拒绝请求": "Отклонять запросы, когда использование памяти превышает это значение",
+    "磁盘 阈值 (%)": "Порог диска (%)",
+    "磁盘使用率超过此值时拒绝请求": "Отклонять запросы, когда использование диска превышает это значение",
+    "保存性能设置": "Сохранить настройки производительности",
     "系统设置": "Системные настройки",
     "系统访问令牌": "Токен доступа к системе",
     "约": "Приблизительно",
@@ -2349,7 +2367,10 @@
     "运行时长（小时）": "Runtime Duration (hours)",
     "返回修改": "Вернуться и исправить",
     "返回登录": "Вернуться к входу",
+    "违规扣费金额": "Сумма удержания за нарушение",
     "这是重复键中的最后一个，其值将被使用": "Это последний ключ в повторяющихся, его значение будет использовано",
+    "这是基础金额，实际扣费 = 基础金额 x 系统分组倍率。": "Это базовая сумма. Фактическое удержание = базовая сумма × коэффициент системной группы.",
+    "这将删除超过 10 分钟未使用的临时缓存文件": "Это удалит временные файлы кэша, которые не использовались более 10 минут",
     "进度": "Прогресс",
     "进行中": "В процессе",
     "进行该操作时，可能导致渠道访问错误，请仅在数据库出现问题时使用": "При выполнении этой операции могут возникнуть ошибки доступа к каналам, используйте только при проблемах с базой данных",

web/src/i18n/locales/vi.json

@@ -101,6 +101,7 @@
     "Gotify服务器地址": "Địa chỉ máy chủ Gotify",
     "Gotify服务器地址必须以http://或https://开头": "Địa chỉ máy chủ Gotify phải bắt đầu bằng http:// hoặc https://",
     "Gotify通知": "Thông báo Gotify",
+    "Grok设置": "Cài đặt Grok",
     "GPU/容器": "GPU/Container",
     "GPU数量": "Number of GPUs",
     "Homepage URL 填": "Điền URL trang chủ",
@@ -445,6 +446,7 @@
     "兑换人ID": "ID người đổi",
     "兑换成功！": "Đổi thành công!",
     "兑换码充值": "Nạp tiền bằng mã đổi thưởng",
+    "清理不活跃缓存": "Xóa cache không hoạt động",
     "兑换码创建成功": "Đã tạo mã đổi thưởng",
     "兑换码创建成功，是否下载兑换码？": "Tạo mã đổi thưởng thành công. Bạn có muốn tải xuống không?",
     "兑换码创建成功！": "Tạo mã đổi thưởng thành công!",
@@ -692,8 +694,10 @@
     "启用请求透传": "Bật truyền qua yêu cầu",
     "启用额度消费日志记录": "Bật ghi nhật ký tiêu thụ hạn ngạch",
     "启用验证": "Bật xác thực",
+    "启用违规扣费": "Bật trừ phí vi phạm",
     "周": "tuần",
     "和": "và",
+    "和Claude不同，默认情况下Gemini的思考模型会自动决定要不要思考，就算不开启适配模型也可以正常使用，如果您需要计费，推荐设置无后缀模型价格按思考价格设置。支持使用 gemini-2.5-pro-preview-06-05-thinking-128 格式来精确传递思考预算。": "Không giống Claude, mô hình tư duy Gemini tự động quyết định có suy nghĩ hay không. Chúng hoạt động bình thường ngay cả khi không bật adapter. Nếu cần tính phí, hãy đặt giá của mô hình không có hậu tố theo giá tư duy. Sử dụng định dạng như gemini-2.5-pro-preview-06-05-thinking-128 để chỉ định ngân sách tư duy chính xác.",
     "响应": "Phản hồi",
     "响应时间": "Thời gian phản hồi",
     "商品价格 ID": "ID giá sản phẩm",
@@ -807,6 +811,7 @@
     "完整的 Base URL，支持变量{model}": "Base URL đầy đủ, hỗ trợ biến {model}",
     "官方": "Chính thức",
     "官方文档": "Tài liệu chính thức",
+    "官方说明": "Tài liệu chính thức",
     "官方模型同步": "Đồng bộ mô hình chính thức",
     "定价模式": "Chế độ định giá",
     "定时测试所有通道": "Định kỳ kiểm tra tất cả các kênh",
@@ -992,6 +997,7 @@
     "开启后，将定期发送ping数据保持连接活跃": "Sau khi bật, dữ liệu ping sẽ được gửi định kỳ để giữ kết nối hoạt động",
     "开启后，当前分组渠道失败时会按顺序尝试下一个分组的渠道": "Sau khi bật, khi kênh nhóm hiện tại thất bại, nó sẽ thử kênh của nhóm tiếp theo theo thứ tự",
     "开启后，所有请求将直接透传给上游，不会进行任何处理（重定向和渠道适配也将失效）,请谨慎开启": "Khi bật, tất cả các yêu cầu sẽ được chuyển tiếp trực tiếp đến thượng nguồn mà không cần xử lý (chuyển hướng và thích ứng kênh cũng sẽ bị vô hiệu hóa). Vui lòng bật một cách thận trọng.",
+    "开启后，违规请求将额外扣费。": "Khi bật, các yêu cầu vi phạm sẽ bị tính phí bổ sung.",
     "开启后不限制：必须设置模型倍率": "Sau khi bật, không giới hạn: phải đặt tỷ lệ mô hình",
     "开启后未登录用户无法访问模型广场": "Khi bật, người dùng chưa xác thực không thể truy cập thị trường mô hình",
     "开启批量操作": "Bật chọn hàng loạt",
@@ -1982,6 +1988,7 @@
     "确认新密码": "Xác nhận mật khẩu mới",
     "确认清除": "Xác nhận xóa",
     "确认清除历史日志": "Xác nhận xóa nhật ký lịch sử",
+    "确认清理不活跃的磁盘缓存？": "Xác nhận xóa cache đĩa không hoạt động?",
     "确认禁用": "Xác nhận vô hiệu hóa",
     "确认补单": "Xác nhận hoàn thành đơn hàng",
     "确认解绑": "Xác nhận hủy liên kết",
@@ -2111,6 +2118,17 @@
     "系统监控": "Giám sát hệ thống",
     "系统管理": "Quản lý hệ thống",
     "系统管理功能": "Chức năng quản lý hệ thống",
+    "系统性能监控": "Giám sát hiệu suất hệ thống",
+    "启用性能监控后，当系统资源使用率超过设定阈值时，将拒绝新的 Relay 请求 (/v1, /v1beta 等)，以保护系统稳定性。": "Khi giám sát hiệu suất được bật và mức sử dụng tài nguyên hệ thống vượt quá ngưỡng đã đặt, các yêu cầu Relay mới (/v1, /v1beta, v.v.) sẽ bị từ chối để bảo vệ sự ổn định của hệ thống.",
+    "启用性能监控": "Bật giám sát hiệu suất",
+    "超过阈值时拒绝新请求": "Từ chối yêu cầu mới khi vượt ngưỡng",
+    "CPU 阈值 (%)": "Ngưỡng CPU (%)",
+    "CPU 使用率超过此值时拒绝请求": "Từ chối yêu cầu khi sử dụng CPU vượt quá giá trị này",
+    "内存 阈值 (%)": "Ngưỡng bộ nhớ (%)",
+    "内存使用率超过此值时拒绝请求": "Từ chối yêu cầu khi sử dụng bộ nhớ vượt quá giá trị này",
+    "磁盘 阈值 (%)": "Ngưỡng đĩa (%)",
+    "磁盘使用率超过此值时拒绝请求": "Từ chối yêu cầu khi sử dụng đĩa vượt quá giá trị này",
+    "保存性能设置": "Lưu cài đặt hiệu suất",
     "系统设置": "Cài đặt hệ thống",
     "系统访问令牌": "Mã thông báo truy cập hệ thống",
     "系统负载": "Tải hệ thống",
@@ -2813,7 +2831,10 @@
     "返回列表": "Quay lại danh sách",
     "返回登录": "Quay lại đăng nhập",
     "返回首页": "Quay lại trang chủ",
+    "违规扣费金额": "Số tiền trừ phí vi phạm",
     "这是重复键中的最后一个，其值将被使用": "Đây là khóa cuối cùng trong số các khóa trùng lặp và giá trị của nó sẽ được sử dụng",
+    "这是基础金额，实际扣费 = 基础金额 x 系统分组倍率。": "Đây là số tiền cơ bản. Số tiền trừ thực tế = số tiền cơ bản × tỷ lệ nhóm hệ thống.",
+    "这将删除超过 10 分钟未使用的临时缓存文件": "Điều này sẽ xóa các tệp cache tạm thời không được sử dụng trong hơn 10 phút",
     "进入": "Nhập",
     "进度": "Tiến độ",
     "进行中": "Đang tiến hành",

web/src/i18n/locales/zh.json

@@ -99,6 +99,7 @@
     "Gotify服务器地址": "Gotify服务器地址",
     "Gotify服务器地址必须以http://或https://开头": "Gotify服务器地址必须以http://或https://开头",
     "Gotify通知": "Gotify通知",
+    "Grok设置": "Grok设置",
     "GPU/容器": "GPU/容器",
     "GPU数量": "GPU数量",
     "Homepage URL 填": "Homepage URL 填",
@@ -691,8 +692,10 @@
     "启用请求透传": "启用请求透传",
     "启用额度消费日志记录": "启用额度消费日志记录",
     "启用验证": "启用验证",
+    "启用违规扣费": "启用违规扣费",
     "周": "周",
     "和": "和",
+    "和Claude不同，默认情况下Gemini的思考模型会自动决定要不要思考，就算不开启适配模型也可以正常使用，如果您需要计费，推荐设置无后缀模型价格按思考价格设置。支持使用 gemini-2.5-pro-preview-06-05-thinking-128 格式来精确传递思考预算。": "和Claude不同，默认情况下Gemini的思考模型会自动决定要不要思考，就算不开启适配模型也可以正常使用，如果您需要计费，推荐设置无后缀模型价格按思考价格设置。支持使用 gemini-2.5-pro-preview-06-05-thinking-128 格式来精确传递思考预算。",
     "响应": "响应",
     "响应时间": "响应时间",
     "商品价格 ID": "商品价格 ID",
@@ -806,6 +809,7 @@
     "完整的 Base URL，支持变量{model}": "完整的 Base URL，支持变量{model}",
     "官方": "官方",
     "官方文档": "官方文档",
+    "官方说明": "官方说明",
     "官方模型同步": "官方模型同步",
     "定价模式": "定价模式",
     "定时测试所有通道": "定时测试所有通道",
@@ -987,6 +991,7 @@
     "开启后，将定期发送ping数据保持连接活跃": "开启后，将定期发送ping数据保持连接活跃",
     "开启后，当前分组渠道失败时会按顺序尝试下一个分组的渠道": "开启后，当前分组渠道失败时会按顺序尝试下一个分组的渠道",
     "开启后，所有请求将直接透传给上游，不会进行任何处理（重定向和渠道适配也将失效）,请谨慎开启": "开启后，所有请求将直接透传给上游，不会进行任何处理（重定向和渠道适配也将失效）,请谨慎开启",
+    "开启后，违规请求将额外扣费。": "开启后，违规请求将额外扣费。",
     "开启后不限制：必须设置模型倍率": "开启后不限制：必须设置模型倍率",
     "开启后未登录用户无法访问模型广场": "开启后未登录用户无法访问模型广场",
     "开启批量操作": "开启批量操作",
@@ -2372,7 +2377,9 @@
     "运行时长（小时）": "运行时长（小时）",
     "返回修改": "返回修改",
     "返回登录": "返回登录",
+    "违规扣费金额": "违规扣费金额",
     "这是重复键中的最后一个，其值将被使用": "这是重复键中的最后一个，其值将被使用",
+    "这是基础金额，实际扣费 = 基础金额 x 系统分组倍率。": "这是基础金额，实际扣费 = 基础金额 x 系统分组倍率。",
     "进度": "进度",
     "进行中": "进行中",
     "进行该操作时，可能导致渠道访问错误，请仅在数据库出现问题时使用": "进行该操作时，可能导致渠道访问错误，请仅在数据库出现问题时使用",
@@ -2727,6 +2734,12 @@
     "套餐名称": "套餐名称",
     "应付金额": "应付金额",
     "支付": "支付",
-    "管理员未开启在线支付功能，请联系管理员配置。": "管理员未开启在线支付功能，请联系管理员配置。"
+    "管理员未开启在线支付功能，请联系管理员配置。": "管理员未开启在线支付功能，请联系管理员配置。",
+    "偏好设置": "偏好设置",
+    "界面语言和其他个人偏好": "界面语言和其他个人偏好",
+    "语言偏好": "语言偏好",
+    "选择您的首选界面语言，设置将自动保存并同步到所有设备": "选择您的首选界面语言，设置将自动保存并同步到所有设备",
+    "语言偏好已保存": "语言偏好已保存",
+    "提示：语言偏好会同步到您登录的所有设备，并影响API返回的错误消息语言。": "提示：语言偏好会同步到您登录的所有设备，并影响API返回的错误消息语言。"
   }
 }