fix: agent acknowledgment recursion and subsystem UI improvements

- Fix recursive call in reportLogWithAck that caused infinite loop
- Add machine binding and security API endpoints
- Enhance AgentScanners component with security status display
- Update scheduler and timeout service reliability
- Remove deprecated install.sh script
- Add subsystem configuration and logging improvements

aggregator-agent/cmd/agent/main.go

@@ -57,8 +57,8 @@ func reportLogWithAck(apiClient *client.Client, cfg *config.Config, ackTracker *
 		log.Printf("Warning: Failed to save acknowledgment for command %s: %v", logReport.CommandID, err)
 	}
 
-	// Report the log to the server
-	if err := reportLogWithAck(apiClient, cfg, ackTracker, logReport); err != nil {
+	// Report the log to the server (FIX: was calling itself recursively!)
+	if err := apiClient.ReportLog(cfg.AgentID, logReport); err != nil {
 		// If reporting failed, increment retry count but don't remove from pending
 		ackTracker.IncrementRetry(logReport.CommandID)
 		return err
@@ -623,7 +623,12 @@ func runAgent(cfg *config.Config) error {
 			pendingAcks := ackTracker.GetPending()
 			if len(pendingAcks) > 0 {
 				metrics.PendingAcknowledgments = pendingAcks
+				log.Printf("Including %d pending acknowledgments in check-in: %v", len(pendingAcks), pendingAcks)
+			} else {
+				log.Printf("No pending acknowledgments to send")
 			}
+		} else {
+			log.Printf("Metrics is nil - not sending system information or acknowledgments")
 		}
 
 		// Get commands from server (with optional metrics)