notes.md

summary row: account_id, limit, balance, pending, revision

transactions: account_id, details, amount, status

actions: account_id, action, data

initial state

summary limit: 100, balance: 0 pending: 0 revision: 0 transactions actions

request approval

actions action: set-limit, amount: 100 action: approve, transaction: 1, amount: 10

summary limit: 100, balance: 0, pending: 10, revision: 1

transactions id: 0, amount: 10, status: pending

capture transaction

actions action: set-limit, amount: 100 action: approve, transaction: 1, amount: 10 action: capture, transaction: 1

summary limit: 100, balance: 10, pending: 0, revision: 2

transactions id: 0, amount: 10, status: captured