infra/fast-time/fork-gate.mjs: H1 and H2 honest and mining through every phase, B the third node; modes attack (B's
key fresh, 3 of 5 CPU threads in the split), third (B at about half of the table, accepted) and partition (H1 against
H2, the heavier side wins with the gate on as with it off). A reorg is read from the chain (getVirtualChainFromBlock
of the pre-cut tip lists removed blocks), never from a key; blue work compared as BigInt; leftovers stopped by pid
file, never by name. infra/fast-time/fork-gate-gate.mjs runs the six cases side by side (known-failed first) and is
GREEN only when every case gives the verdict it must and the two partition heals agree. tools/fast-time-remote.sh
runs a harness on a build box under a slot with a holder line and a JSONL row (the node binaries from a fork
worktree's target on the box, results fetched back); it carries the whole-body block and is listed in the check.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
