- Update version from 2.0.1 to 3.1.1 in pyproject.toml and server/main.py
- Add V3_17_MOBILE_PORTRAIT_LAYOUT.md documenting all mobile improvements:
responsive layout, animation sizing fixes, compact header, bottom drawers
- Add V3_17 entry to V3 master plan
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
