* tests: hold invoice tests pending during payment
* sigh...
* ok
* hash preimage
* preimage_hash == payment_hash
* should error
* check that payment is gone
* cancel task while in-flight
* lnbits endpoing return error
* return error
* add both options
* fix list
* respond to error
* return false if payment status errors
* outgoing invoice should be deleted after one status check
* test api_payments_create error
