Vendor the command set the menu and shell depend on

bin/blob-toggle-nightlight

@@ -0,0 +1,59 @@
+#!/bin/bash
+
+# blob:summary=Toggle nightlight screen temperature
+# blob:args=[--status]
+# blob:examples=blob toggle nightlight
+
+ON_TEMP=4000
+OFF_TEMP=6500
+IDENTITY_TEMP=6000
+
+current_temp() {
+  local output
+
+  output=$(hyprctl hyprsunset temperature 2>/dev/null) || return
+  grep -oE '[0-9]+' <<<"$output" | head -n1
+}
+
+status_json() {
+  local temp enabled
+
+  temp=$(current_temp)
+  if [[ -n $temp ]] && (( temp < IDENTITY_TEMP )); then
+    enabled=true
+  else
+    enabled=false
+  fi
+
+  jq -cn --argjson enabled "$enabled" --arg temp "$temp" \
+    '{enabled:$enabled, temperature:(($temp | tonumber?) // null)}'
+}
+
+if [[ ${1:-} == "--status" ]]; then
+  status_json
+  exit 0
+fi
+
+# Ensure hyprsunset is running
+if ! pgrep -x hyprsunset >/dev/null; then
+  setsid uwsm-app -- hyprsunset &
+fi
+
+# Query the current temperature
+CURRENT_TEMP=$(current_temp)
+
+if [[ -z $CURRENT_TEMP || $CURRENT_TEMP == $OFF_TEMP ]]; then
+  TARGET_TEMP=$ON_TEMP
+else
+  TARGET_TEMP=$OFF_TEMP
+fi
+
+# A freshly-started hyprsunset applies its default temperature at the end of
+# its boot, overriding anything set before then — so resend until it sticks
+for _ in {1..10}; do
+  hyprctl hyprsunset temperature $TARGET_TEMP >/dev/null 2>&1
+  sleep 0.2
+  [[ $(current_temp) == "$TARGET_TEMP" ]] && break
+done
+
+blob-shell -q nightlight refresh