new app server and database + added hub and controller of user profile

Govor.Contracts/Requests/SignalR/MessageRequest.cs

@@ -1,4 +1,5 @@
 using Govor.Core.Models.Messages;
+using System.ComponentModel.DataAnnotations;
 
 namespace Govor.Contracts.Requests.SignalR;
 
@@ -6,6 +7,8 @@ public record MessageRequest
 {
     public Guid RecipientId { get; init; }
     public RecipientType RecipientType { get; init; }
+    [Required]
+    [MaxLength(100_000, ErrorMessage = "EncryptedContent cannot exceed 100,000 characters.")]
     public string EncryptedContent { get; init; } = string.Empty;
     public Guid? ReplyToMessageId { get; set; }
     public List<MediaReference> MediaAttachments { get; set; } = new();