Follow-up tidy after the cross-service /command removal (#73):
- Rename the router test double dummyExecutor -> fakeEngine (and the
newExecutor / setupRouterExecutor helpers -> newFakeEngine /
setupRouterEngine): it implements handler.Engine now, "executor" was a
leftover of the removed adapter. Test-only.
- Regenerate the ui/core canon signing golden onto user.games.order
(request_user_games_command.json -> request_user_games_order.json, fresh
canonical bytes + Ed25519 signature) and drop the last
user.games.command references from the Go/TS tests and docs.
- Align game openapi: CommandRequest.cmd no longer carries minItems: 1. It
is now used only by PUT /api/v1/order, which accepts an empty batch
(clearing the player's stored order, equivalent to removing every
command); the contract test freezes the empty-allowed shape.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Ilia Denisov