core.sh enables greetd (tuigreet) on every install, but the ly-based Hyprland
DEs only disabled getty@tty1 and enabled ly@tty1 — leaving both display
managers enabled and racing for tty1, so the stale greetd/tuigreet greeter
could win and show the old text login instead of ly.
Add a disable_service helper (mirrors enable_service; best-effort, non-fatal)
and call disable_service greetd.service in hyprlua.sh and hyprland.sh right
before enabling ly@tty1, so ly owns the login screen.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MUhrcFU8J1Hnf7vNqNxZNi