added logout

internal/auth/middleware.go

@@ -16,7 +16,7 @@ func AuthMiddleware(jwtSecret []byte) gin.HandlerFunc {
 		}
 
 		parts := strings.SplitN(authHeader, " ", 2)
-		if len(parts) != 2 || parts[0] != "Bearer" {
+		if len(parts) != 2 || !strings.EqualFold(parts[0], "Bearer") {
 			c.AbortWithStatusJSON(http.StatusUnauthorized, ErrorResponse{Error: "invalid authorization header format"})
 			return
 		}