Model TestCommand's release tree (ResourceSelectorArgument patterns
included) and its finder, locate, pos, stop and clear outcomes when no
test instance block exists. Compare /help's gamerule alternatives as a
set: GameRuleCommand registers them in identity-hash order.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Brigadier keeps children in registration order and /help prints them
that way; tools/generate_command_order.py records vanilla's order where
Horizon's tree differs. The game now runs the release integrated
server's tree; HORIZON_DEV_COMMANDS restores the development commands.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>