fix: migrate to IDbContextFactory and remove direct AppDbContext from DI (#11)

Reviewed-on: #11
Co-authored-by: Marek Jasiński <jasins.marek@gmail.com>
Co-committed-by: Marek Jasiński <jasins.marek@gmail.com>

src/NexusReader.Domain/Entities/SubscriptionPlan.cs

@@ -22,6 +22,8 @@ public class SubscriptionPlan
     public string PlanName { get; set; } = string.Empty;
 
     public int AITokenLimit { get; set; }
+    
+    public bool IsUnlimitedTokens { get; set; }
 
     public decimal MonthlyPrice { get; set; }