Carry the accepted quote into each request, persist it, and reject
invoices above that limit. Preserve compatibility for requests that
omit the cap while distinguishing an explicit zero.
Refresh the chain height when a swap resumes, verify both the
reservation and HTLC windows, and select the HTLC path when either
remaining window is too short.
Limit newly accepted reservation state machines, resume all persisted
reservations, remove terminal entries from memory, and make cleanup
resilient to observer-driven eviction.
This commit updates the instantout package to use the new fsm context
instead of the old fsm context. This is only a first step in the process
of migrating the instantout package to the new fsm context. The next
step should be to remove the stored context in the instantout manager.
