refactor(runtime): expose canonical gameplay state

Move character options and movement skills into the Runtime-owned character graph, expose borrowed inventory, character, and social views, and route retained UI state commands through generation-gated typed Runtime contracts. Preserve the existing synchronous wire path while deleting the App-owned option and skill mirrors and extending normalized parity checkpoints.

Co-authored-by: Codex <codex@openai.com>

src/AcDream.Runtime/GameRuntimeEvents.cs

@@ -13,6 +13,10 @@ public enum RuntimeCommandDomain
     Movement,
     Chat,
     Portal,
+    InventoryState,
+    Spellbook,
+    Character,
+    Social,
 }
 
 public readonly record struct RuntimeLifecycleDelta(
@@ -145,6 +149,19 @@ public sealed class RuntimeTraceRecorder : IRuntimeEventObserver
                 System.Globalization.CultureInfo.InvariantCulture,
                 $"frame={checkpoint.FrameNumber};materialized={checkpoint.MaterializedEntityCount};" +
                 $"containers={checkpoint.InventoryContainerCount};chat={checkpoint.ChatCount};" +
+                $"inventory-state={checkpoint.InventoryState.ShortcutCount}:" +
+                $"{checkpoint.InventoryState.ShortcutRevision}:" +
+                $"{checkpoint.InventoryState.ItemManaCount}:" +
+                $"{checkpoint.InventoryState.ItemManaRevision};" +
+                $"character={checkpoint.Character.CharacterRevision}:" +
+                $"{checkpoint.Character.SpellbookRevision}:" +
+                $"{checkpoint.Character.LearnedSpellCount}:" +
+                $"{checkpoint.Character.SkillCount}:" +
+                $"{checkpoint.Character.Options.Revision}:" +
+                $"{checkpoint.Character.MovementSkills.Revision};" +
+                $"social={checkpoint.Social.FriendsRevision}:" +
+                $"{checkpoint.Social.FriendCount}:" +
+                $"{checkpoint.Social.SquelchRevision};" +
                 $"portal={checkpoint.Portal.Generation}:{(int)checkpoint.Portal.Kind}:" +
                 $"{checkpoint.Portal.DestinationCell:X8}:{checkpoint.Portal.IsReady}")));
     }