Add docs/RELEASE-0.10-PLAN.md covering the open roadmap follow-ups plus
per-job overlap policy, run-time statistics, one-line activity entries,
log-name fix, and 720p window sizing. Drop the non-portable delivery
formats (.deb, installer, AppImage, Flatpak, winget) from ROADMAP.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
mixeme