feat(D.5.1): persist PlayerDescription shortcuts (were parsed then discarded)

Add optional `onShortcuts` callback to `GameEventWiring.WireAll`; invoke
it with `parsed.Shortcuts` after the inventory/equipped loops in the
PlayerDescription handler.  `GameWindow` holds the list in a new
`Shortcuts` property (initialized to empty) so the toolbar (D.5.1 Task 5)
can read hotbar slots without keeping a parser reference.  Existing callers
compile unchanged — the parameter defaults to null.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/AcDream.Core.Net/GameEventWiring.cs

@@ -61,7 +61,11 @@ public static class GameEventWiring
         // (matching ACE's CreatureSkill.Current minus
         // augs/multipliers/vitae which we still don't model).
         Action<int /*runSkill*/, int /*jumpSkill*/>? onSkillsUpdated = null,
-        Func<uint /*skillId*/, IReadOnlyDictionary<uint, uint> /*attrCurrents*/, uint /*formulaBonus*/>? resolveSkillFormulaBonus = null)
+        Func<uint /*skillId*/, IReadOnlyDictionary<uint, uint> /*attrCurrents*/, uint /*formulaBonus*/>? resolveSkillFormulaBonus = null,
+        // D.5.1 Task 4: persists Shortcuts from each PlayerDescription so the
+        // toolbar can populate itself at login without keeping a parser reference.
+        // Optional so all existing callers and tests compile unchanged.
+        Action<IReadOnlyList<PlayerDescriptionParser.ShortcutEntry>>? onShortcuts = null)
     {
         ArgumentNullException.ThrowIfNull(dispatcher);
         ArgumentNullException.ThrowIfNull(items);
@@ -430,6 +434,10 @@ public static class GameEventWiring
                     newSlot:          -1,
                     newEquipLocation: (EquipMask)eq.EquipLocation);
             }
+
+            // D.5.1 Task 4: forward shortcut bar entries to the caller so the
+            // toolbar can read them without holding a parser reference.
+            onShortcuts?.Invoke(p.Value.Shortcuts);
         });
     }
 }