fix(daemon, setup): Improve shutdown command detection and fallback logic; update setup script to use absolute Node/npm paths

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@serve.zone/nupst',
-  version: '2.6.4',
+  version: '2.6.5',
   description: 'Node.js UPS Shutdown Tool for SNMP-enabled UPS devices'
 }