feat(import): import owned card collection with unknown-card skip

Extends POST /admin/import_viewer to accept owned_cards (snapshot full-replace).
Unknown card_ids are skipped, counted in skipped_card_count on the response, and
logged server-side. Count is clamped to OwnedCardEntry.MaxCopies (3). Also injects
ILogger into AdminController and adds Cards/Items/Decks to the viewer reload graph.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

SVSim.EmulatedEntrypoint/Models/Dtos/Requests/Admin/ImportViewerRequest.cs

@@ -26,6 +26,8 @@ public class ImportViewerRequest
     [JsonPropertyName("owned_mypage_background_ids")] public List<int>? OwnedMyPageBackgroundIds { get; set; }
 
     [JsonPropertyName("classes")] public List<ImportClassData>? Classes { get; set; }
+
+    [JsonPropertyName("owned_cards")] public List<ImportCard>? OwnedCards { get; set; }
 }
 
 public class ImportCurrency
@@ -41,3 +43,10 @@ public class ImportClassData
     [JsonPropertyName("level")] public int Level { get; set; }
     [JsonPropertyName("exp")] public int Exp { get; set; }
 }
+
+public class ImportCard
+{
+    [JsonPropertyName("card_id")]      public long CardId { get; set; }
+    [JsonPropertyName("count")]        public int Count { get; set; }
+    [JsonPropertyName("is_protected")] public bool IsProtected { get; set; }
+}

SVSim.EmulatedEntrypoint/Models/Dtos/Responses/Admin/ImportViewerResponse.cs

@@ -7,4 +7,5 @@ public class ImportViewerResponse
     [JsonPropertyName("viewer_id")] public long ViewerId { get; set; }
     [JsonPropertyName("short_udid")] public long ShortUdid { get; set; }
     [JsonPropertyName("was_created")] public bool WasCreated { get; set; }
+    [JsonPropertyName("skipped_card_count")] public int SkippedCardCount { get; set; }
 }