CAP-006 — Foreign exchange — live rates, rate lock

Category	Money & payments
Business goal	BG-002
Satisfying module	MOD-025 FX rate lock & settlement
Mode	AUTO
BD owner	BD06 Payments
Human needed	No

Live mid-market FX rates with a customer-confirmed rate lock window (typically 45 seconds) before settlement. The rate the customer sees is the rate they pay — no post-confirmation slippage. MOD-025 fetches live rates, locks the agreed rate for the confirmation window, and executes the dual-currency ledger posting atomically if the customer confirms in time.