Fund-correctness audit, send path:
- Flagship wrong-send: s_send_max was only cleared on a successful send, so after
Max → typing a smaller amount → changing the fee tier in the confirm dialog,
the amount was silently overwritten back to the maximum and Confirm sent far
more than the user typed. Clear s_send_max on any manual amount edit (DRGX and
USD inputs), so a later fee bump never rewrites a hand-entered amount.
- A valid exact-maximum send was blocked by 1 ulp because amount+fee<=available
was computed in IEEE doubles. New util::toSats/canAfford compare in int64
satoshis; wired into the Review gate, the confirm-time re-check, the Send
tooltip and the amount-error banner. This only unblocks a correct send; it
changes no sent amount.
- Added util::coinsToZatoshis (reject non-finite / <=0 / rounds-to-0 / over-supply)
and regression tests for formatAmountFixed, toSats/canAfford and coinsToZatoshis
(incl. the exact failing inputs the audit found).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
DanSandClaude Opus 4.8
70d5c233c0