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feat(machine): persist exchange rate and currency in transactions

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Add exchange_rate (sats per fiat unit) and currency columns to the
transactions table so transaction economics can be audited after the
fact. Includes schema migration v2 (fee columns) and v3 (rate/currency),
updated IPC types, and atm-transactions CLI output.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Patrick Mulligan 2026-03-10 01:30:18 -04:00
commit 310d0edb99
5 changed files with 65 additions and 4 deletions
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5
deploy/nixos/atm-transactions.sh
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@ -81,6 +81,7 @@ if $SUMMARY; then
COUNT(*) AS 'Count',
SUM(fiat_cents) / 100 AS 'Total Fiat',
SUM(sats) AS 'Total Sats',
SUM(fee_sats) AS 'Total Fee Sats',
MIN(fiat_cents) / 100 AS 'Min Fiat',
MAX(fiat_cents) / 100 AS 'Max Fiat'
FROM transactions
@ -129,8 +130,12 @@ fi
sql "SELECT
t.txid AS 'TX ID',
t.type AS 'Type',
t.currency AS 'Cur',
t.fiat_cents / 100 AS 'Fiat',
t.sats AS 'Sats',
t.fee_sats AS 'Fee Sats',
printf('%.1f%%', t.fee_percent * 100) AS 'Fee %',
CASE WHEN t.exchange_rate > 0 THEN printf('%.0f', t.exchange_rate) ELSE '-' END AS 'Rate',
datetime(t.created_at / 1000, 'unixepoch') AS 'Time (UTC)',
group_concat('Q' || tb.denomination || 'x' || tb.count) AS 'Bills'
FROM transactions t