Deck fixes

SVSim.EmulatedEntrypoint/Controllers/DeckController.cs

@@ -96,9 +96,6 @@ public class DeckController : SVSimController
                     IsRandomLeaderSkin = s.IsRandomLeaderSkin,
                     LeaderSkinId = s.LeaderSkinId,
                 }),
-            // trial_deck_list: empty in 2026-05-23 prod; populated during tutorial campaigns —
-            // entry shape TBD until a capture lands with active content.
-            TrialDeckList = new(),
             MaintenanceCardList = new(), // sourced from same place as /load/index when wired
         };
 
@@ -112,6 +109,9 @@ public class DeckController : SVSimController
             response.UserDeckRotation = byFormat[Format.Rotation].Select(d => new UserDeck(d)).ToList();
             response.UserDeckUnlimited = byFormat[Format.Unlimited].Select(d => new UserDeck(d)).ToList();
             response.UserDeckMyRotation = byFormat[Format.MyRotation].Select(d => new UserDeck(d)).ToList();
+            // trial_deck_list is prod-emitted on /deck/info (All format) but omitted on /deck/my_list
+            // (specific format). Empty array in the 2026-05-23 prod capture.
+            response.TrialDeckList = new();
         }
         else
         {