`choco list` should stream output

`choco list` fails to respond for a long time, before suddenly emitting results. Please load the initial records faster and stream them to output, rather than waiting for the entire list to write.

Start at the `choco list` command and inspect how it currently gathers and writes records. Confirm the delayed output behavior, then make initial records appear incrementally; done means results stream instead of waiting for the entire list.

Written by the indexing model from the issue text.