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-web/src/components/AgentUpdatesEnhanced.tsx

@@ -2,13 +2,9 @@ import { useState } from 'react';
 import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
 import {
   Search,
-  Package,
-  Download,
   Upload,
-  CheckCircle,
   RefreshCw,
   Terminal,
-  Filter,
   ChevronDown,
   ChevronRight,
   Check,