fix(cli): Refactor logs command to use child_process spawn for real-time log tailing

ts/daemon.ts

@@ -193,11 +193,15 @@ export class NupstDaemon {
     console.log('Starting UPS monitoring...');
     
     let lastStatus: 'online' | 'onBattery' | 'unknown' = 'unknown';
+    let lastLogTime = 0; // Track when we last logged status
+    const LOG_INTERVAL = 5 * 60 * 1000; // Log at least every 5 minutes (300000ms)
     
     // Monitor continuously
     while (this.isRunning) {
       try {
         const status = await this.snmp.getUpsStatus(this.config.snmp);
+        const currentTime = Date.now();
+        const shouldLogStatus = (currentTime - lastLogTime) >= LOG_INTERVAL;
         
         // Log status changes
         if (status.powerStatus !== lastStatus) {
@@ -205,6 +209,17 @@ export class NupstDaemon {
           console.log(`│ Power status changed: ${lastStatus} → ${status.powerStatus}`);
           console.log('└──────────────────────────────────────────┘');
           lastStatus = status.powerStatus;
+          lastLogTime = currentTime; // Reset log timer when status changes
+        }
+        // Log status periodically (at least every 5 minutes)
+        else if (shouldLogStatus) {
+          const timestamp = new Date().toISOString();
+          console.log('┌──────────────────────────────────────────┐');
+          console.log(`│ [${timestamp}] Periodic Status Update`);
+          console.log(`│ Power Status: ${status.powerStatus}`);
+          console.log(`│ Battery: ${status.batteryCapacity}% | Runtime: ${status.batteryRuntime} min`);
+          console.log('└──────────────────────────────────────────┘');
+          lastLogTime = currentTime;
         }
         
         // Handle battery power status