Add option to disable demo reset (part 2)

server/src/scheduler.ts

@@ -142,6 +142,10 @@ let demoTask: ScheduledTask | null = null;
 function startDemoReset(): void {
   if (demoTask) { demoTask.stop(); demoTask = null; }
   if (process.env.DEMO_MODE?.toLowerCase() !== 'true') return;
+  if (process.env.DISABLE_DEMO_RESET?.toLowerCase() === 'true') {
+    logInfo('Demo reset: DISABLED via DISABLE_DEMO_RESET');
+    return;
+  }
 
   demoTask = cron.schedule('0 * * * *', () => {
     try {