Convert gOddTable, gLamTable, and combTable from `by lazy` to eager
initialization. These tables are accessed on every verify (mulDoubleG)
and sign (mulG) call.
On K/Native, each `by lazy` access goes through
SynchronizedLazyImpl.getValue() — a thread-safe lock check + memory
barrier. The native disassembly showed 2 SynchronizedLazyImpl calls
per mulDoubleG invocation.
On JVM, Kotlin's lazy delegates use double-checked locking via
SynchronizedLazyImpl, adding interface dispatch + volatile read on
every access.
Move the `scratch` (ScratchLocal) field declaration before the table
fields to satisfy initialization order — buildGOddTable() and
buildCombTable() use doublePoint/addPoints which call scratch.get().
https://claude.ai/code/session_015CtM5k88rF7WFgX8o2AGNR
Claude
34bef2438e