Add user profile and avatar upload feature

web/backend/Domain/Domain.Entities/Entities/UserProfile.cs

@@ -0,0 +1,16 @@
+namespace Domain.Entities;
+
+public sealed class UserProfile
+{
+    // PK
+    public Guid UserProfileId { get; set; }
+
+    // FK References
+    public Guid UserAccountId { get; set; }
+
+    // Attributes
+    public string Biography { get; set; } = string.Empty;
+
+    // Audit Fields
+    public byte[]? RowVersion { get; set; }
+}