CLEANUP: cli: initialize the whole appctx->ctx, not just the stats part

CLEANUP: cli: initialize the whole appctx->ctx, not just the stats part

Historically the CLI was a second access to the stats and we've continued
to initialize only the stats part when initializing the CLI. Let's make
sure we do that on the whole ctx instead. It's probably not more needed
at all nowadays but better stay on the safe side.