Incorrect HTLC timeout ordering can destroy funds

[diorwave]

Problem

Atomic swaps require strict ordering:

Taker refund time < Maker refund time

If equal or reversed:

1. taker redeems maker funds
2. maker refund window already expired
3. irreversible loss

Different chains have different block times → PoC currently static.

Required Solution

Dynamic timeout calculator:

maker_timeout =
  taker_timeout
+ network_confirmation_time
+ safety_margin

Per chain configuration required.