chore: 初始化仓库，排除二进制文件和覆盖率文件

pkg/auth/jwt.go

@@ -0,0 +1,70 @@
+package auth
+
+import (
+	"errors"
+	"time"
+
+	"github.com/golang-jwt/jwt/v5"
+)
+
+// JWTService JWT服务
+type JWTService struct {
+	secretKey   string
+	expireHours int
+}
+
+// NewJWTService 创建新的JWT服务
+func NewJWTService(secretKey string, expireHours int) *JWTService {
+	return &JWTService{
+		secretKey:   secretKey,
+		expireHours: expireHours,
+	}
+}
+
+// Claims JWT声明
+type Claims struct {
+	UserID   int64  `json:"user_id"`
+	Username string `json:"username"`
+	Role     string `json:"role"`
+	jwt.RegisteredClaims
+}
+
+// GenerateToken 生成JWT Token (使用UserID和基本信息)
+func (j *JWTService) GenerateToken(userID int64, username, role string) (string, error) {
+	claims := Claims{
+		UserID:   userID,
+		Username: username,
+		Role:     role,
+		RegisteredClaims: jwt.RegisteredClaims{
+			ExpiresAt: jwt.NewNumericDate(time.Now().Add(time.Duration(j.expireHours) * time.Hour)),
+			IssuedAt:  jwt.NewNumericDate(time.Now()),
+			NotBefore: jwt.NewNumericDate(time.Now()),
+			Issuer:    "carrotskin",
+		},
+	}
+
+	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
+	tokenString, err := token.SignedString([]byte(j.secretKey))
+	if err != nil {
+		return "", err
+	}
+
+	return tokenString, nil
+}
+
+// ValidateToken 验证JWT Token
+func (j *JWTService) ValidateToken(tokenString string) (*Claims, error) {
+	token, err := jwt.ParseWithClaims(tokenString, &Claims{}, func(token *jwt.Token) (interface{}, error) {
+		return []byte(j.secretKey), nil
+	})
+
+	if err != nil {
+		return nil, err
+	}
+
+	if claims, ok := token.Claims.(*Claims); ok && token.Valid {
+		return claims, nil
+	}
+
+	return nil, errors.New("无效的token")
+}