Added database entities, started with node crud

MoonlightServers.Shared/Http/Requests/Admin/Nodes/UpdateNodeRequest.cs

@@ -0,0 +1,17 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace MoonlightServers.Shared.Http.Requests.Admin.Nodes;
+
+public class UpdateNodeRequest
+{
+    [Required(ErrorMessage = "You need to provide a name")]
+    public string Name { get; set; }
+    
+    [Required(ErrorMessage = "You need to provide a fqdn")]
+    public string Fqdn { get; set; }
+
+    [Range(1, 65535, ErrorMessage = "You need to provide a valid port")]
+    public int ApiPort { get; set; } = 8080;
+
+    public bool SslEnabled { get; set; } = false;
+}