feat(core): migrate system state to unified declarative JSON

- Consolidate all configuration toggles (suspend, idle, waybar, etc.) into ~/.config/home-manager/state.json
- Introduce nomarchy.toggles and nomarchy.hyprland options in Nix
- Inject toggle states into all bin/ scripts via environment variables
- Update toggle scripts to mutate JSON and trigger background rebuilds
- Add a migration script to transition legacy flag files to the new format

bin/nomarchy-launch-screensaver

@@ -11,10 +11,12 @@ fi
 pgrep -f org.nomarchy.screensaver && exit 0
 
 # Allow screensaver to be turned off but also force started
-if [[ -f ~/.local/state/nomarchy/toggles/screensaver-off ]] && [[ $1 != "force" ]]; then
-  exit 1
+# Skip if screensaver is disabled in configuration
+if [[ $NOMARCHY_TOGGLE_SCREENSAVER == "false" ]] && [[ $1 != "force" ]]; then
+  exit 0
 fi
 
+
 # Silently quit Walker on overlay
 walker -q