Add ResourceHub for real-time updates and implement web dashboard with REST API

- Created ResourceHub.cs for SignalR group management.
- Developed a modern web dashboard using Tailwind CSS for responsive design.
- Implemented real-time updates with SignalR for CPU, Memory, GPU, and Network usage.
- Added REST API endpoints for resource information and process management.
- Integrated process management features to view and terminate high-usage processes.
- Enhanced UI with loading spinners, notifications, and responsive tables.
- Included performance charts for historical CPU and Memory usage.
- Configured Swagger UI for API documentation.
- Established security features including process kill restrictions and API key authentication.

Models/SystemInfo.cs

@@ -107,7 +107,7 @@ namespace ResourceMonitorService.Models
 
     public class ProcessInfo
     {
-        public int Id { get; set; }
+        public int ProcessId { get; set; }
         public string Name { get; set; } = string.Empty;
         public float CpuUsage { get; set; }
         public ulong MemoryUsage { get; set; }