ContextScroll v0.2.0

ContextScroll now runs its input daemon as a dedicated unprivileged system account instead of root. A narrow udev rule grants access only to physical mouse-class event nodes and /dev/uinput; the account is not a member of the broad input group.

The installer migrates existing installations automatically. POSIX ACL tools (setfacl) are now a runtime requirement.

This release passed 59 automated tests, formatting, Clippy, systemd validation, udev validation, live Fedora installation, startup checks, and hands-on browser testing.