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-toggle-suspend

@@ -1,12 +1,29 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
-STATE_FILE=~/.local/state/nomarchy/toggles/suspend-off
+# Toggles the suspend menu option availability.
+# Hybrid: updates state.json and runs env-update for persistence.
 
-if [[ -f $STATE_FILE ]]; then
-  rm -f $STATE_FILE
-  notify-send -u low "󰒲   Suspend now available in system menu"
+STATE_FILE="$HOME/.config/home-manager/state.json"
+mkdir -p "$(dirname "$STATE_FILE")"
+
+# Initialize if doesn't exist
+[[ ! -f $STATE_FILE ]] && echo "{}" > "$STATE_FILE"
+
+# Get current state from env or state file
+if [[ $NOMARCHY_TOGGLE_SUSPEND == "false" ]]; then
+    NEW_VALUE="true"
+    notify-send -u low "󰒲   Suspend now available in system menu"
 else
-  mkdir -p "$(dirname $STATE_FILE)"
-  touch $STATE_FILE
-  notify-send -u low "󰒲   Suspend removed from system menu"
+    NEW_VALUE="false"
+    notify-send -u low "󰒲   Suspend removed from system menu"
 fi
+
+# Update JSON using jq
+# We use a temporary file to avoid corruption if the shell is interrupted
+TMP_JSON=$(mktemp)
+jq ".suspend = $NEW_VALUE" "$STATE_FILE" > "$TMP_JSON" && mv "$TMP_JSON" "$STATE_FILE"
+
+echo "Suspend availability set to $NEW_VALUE. Updating environment..."
+
+# Run env-update to apply changes to the menu
+env-update