v2 bounty payouts

[Evanfeenstra]

Context

v2 users need async payments to get keysends paid to them. And we should back up bounties page with a v2 "bot" instead of a ECS LND node

signup as v2 user

• route_hint has underscores, not ":". So we can use that to set a user as "v2"

paying bounty

• we will run a v2 "account" docker image on the same machine, with an API
• call the pay endpoint on the v2 bot to pay out

org stuff

• create invoice
• check invoice
• withdraw (pay invoice)