- add get_data_dir() with CMBOT_DATA_DIR override, fallback to program dir
- point config/logs/output at the data root; resources stay on program root
- harden config/template writes with parents=True for a deep data root
- add docs/10-lan-update.md (LAN auto-update design); default install root
%LOCALAPPDATA%\CMBot for elevation-free self-update
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
