improve mytoken auth checks

internal/endpoints/token/access/accessTokenEndpoint.go

internal/endpoints/token/mytoken/mytokenEndpoint.go

internal/endpoints/token/mytoken/pkg/transferCodeRequest.go

internal/endpoints/token/mytoken/transferEndpoint.go

internal/endpoints/tokeninfo/history.go

internal/endpoints/tokeninfo/introspect.go

internal/endpoints/tokeninfo/list.go

internal/endpoints/tokeninfo/tokeninfo.go

internal/endpoints/tokeninfo/tree.go

internal/utils/auth/auther.go

internal/utils/ctxUtils/token.go

shared/mytoken/mytokenHandler.go