Update project files and configurations for improved structure and maintainability

Models/SystemInfo.cs

@@ -111,6 +111,7 @@ namespace ResourceMonitorService.Models
         public string Name { get; set; } = string.Empty;
         public float CpuUsage { get; set; }
         public ulong MemoryUsage { get; set; }
+        public float MemoryUsagePercentage { get; set; }
         public TimeSpan ProcessorTime { get; set; }
         public DateTime StartTime { get; set; }
         public string ExecutablePath { get; set; } = string.Empty;