Updates status in airtable when payment is complete
MNT_ID
MNT_INTEGRITY_CODE
AIRTABLE_API_KEY
AIRTABLE_BASE_ID
AIRTABLE_TABLE_NAME # optional, defaults to "Payments"
AUTH_URL # auth service url
PUBLIC_KEY # JWT public key, use \n for line breaks
POST /webhook– PayAnyWay notification handler.GET /– shows a simple HTML table with invoices for authorized user.