- Add -model and -backend flags; read OLLIE_COMPLETE_MODEL /
OLLIE_COMPLETE_BACKEND as defaults; error if neither is set
- Guard against winid=0 (acme column tag / +Errors window)
- Document OLLIE_COMPLETE_MODEL and OLLIE_COMPLETE_BACKEND in
README.md and doc/env.sample
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>