Enhance mapping in MappingProfile.cs

Updated the `MappingProfile` class to include custom mappings for the `CreateRecActionCommand` to `RecAction` transformation:
- Set `Active` to `true` by default.
- Set `AddedWhen` to the current UTC time.
- Set `AddedWho` to `"ReC.API"` as a placeholder.
Added a `TODO` comment to replace the hardcoded `AddedWho` value with dynamic injection from the current host/user context.

src/ReC.Application/RecActions/MappingProfile.cs

@@ -3,10 +3,14 @@ using ReC.Domain.Entities;
 
 namespace ReC.Application.RecActions;
 
+// TODO: update to inject AddedWho from the current host/user contex
 public class MappingProfile : AutoMapper.Profile
 {
     public MappingProfile()
     {
-        CreateMap<CreateRecActionCommand, RecAction>();
+        CreateMap<CreateRecActionCommand, RecAction>()
+            .ForMember(e => e.Active, exp => exp.MapFrom(cmd => true))
+            .ForMember(e => e.AddedWhen, exp => exp.MapFrom(cmd => DateTime.UtcNow))
+            .ForMember(e => e.AddedWho, exp => exp.MapFrom(cmd => "ReC.API"));
     }
 }