concinnity-dev: the dev tooling library.
Everything the concinnity binary does, minus the argv it does it from:
the world authoring / in-memory build code, the implementations behind each
subcommand, the asset-reference generator, bundle packaging, the in-engine
editor HUD, the localhost debug server, and the interpreted (cn debug) run
loop.
The binary is the clap command tree and nothing else. Everything it dispatches into is here, which is what lets the same entry points serve an out-of-tree host that has no argv at all.