feat: get request JTI helper

internal/util/request.go

@@ -11,3 +11,7 @@ func GetRequestUserId(ctx context.Context) (string, bool) {
 	return userId, ok
 }
 
+func GetRequestJTI(ctx context.Context) (string, bool) {
+	jti, ok := ctx.Value(types.JTIKey).(string)
+	return jti, ok
+}