Fix amount calculation and track paid fees in `PaymentKind::Onchain`#468

Merged

tnull merged 2 commits intolightningdevkit:mainfrom tnull:2025-02-add-fee-field-to-onchain

Feb 22, 2025

+122-21

Commits on Feb 13, 2025

Fix amount calculation for tracked onchain payments
tnull
committed

Commits on Feb 21, 2025

Track paid fees in PaymentDetails
tnull
committed