Rename Guid to Id in RecAction class

Renamed the property `Guid` to `Id` in the `RecAction` class
to improve clarity and align with naming conventions or
database schema updates. No other changes were made to
the file.

src/ReC.Domain/Entities/RecAction.cs

@@ -8,7 +8,7 @@ public class RecAction
 {
     [Key]
     [Column("GUID")]
-    public long? Guid { get; set; }
+    public long? Id { get; set; }
 
     [Column("PROFILE_ID")]
     public long? ProfileId { get; set; }