Document the external docs layout under dot_local/share/docs in AGENTS and
GEMINI, and drop outdated references to the old hyprland/waybar wiki mirrors.
Remove the ignore entries for the previous wiki paths from .chezmoiignore.
hypr: switch hyprpaper template to wallpaper blocks
Replace preload generation with explicit wallpaper blocks per monitor.
waybar: always include custom/alhp module
Remove the hostname guard so the module is present on all hosts.
