deploy/testnet: one-command-per-box bring-up for a fleet of standalone
`dexd run` venues across two boxes, a cross-arch determinism proof, and a
ZAP load/throughput bench (drives the existing cmd/dexbench).
- compose.yml + gen-compose.sh: N independent venues/box (default 3, scales
to ~11), one ZAP port/node, per-node data dirs, 128GB-box resource caps.
- Dockerfile: pure-Go CPU image (dexd + dexbench), native amd64/arm64.
- Makefile: make up/bench/verify/down — git pull + one command per box.
- topology.md: honest consensus model (independent venues, deterministic
per-node genesis, no gossip) + the luxd `dexd plugin` BFT path.
- overlay/: opt-in hanzozt (OpenZiti) tunneler for NAT; direct 2.5GbE is the
default for true wire numbers.
- README.md: exact per-box commands, 128GB sizing, reading bench output.
Validated locally: signed place/cross load 0 rejects (cross=1 fill/submit);
dexbench -verify across two independent venues PASS (byte-identical 3-fill
multi-level sweep).
