fix #211: index login-equipped items under player

Project PlayerDescription equipment through the same contained-by-wielder ownership and ordered contents index as live WieldObject updates. Preserve equip masks and priorities so retail GetObjectAtLocation selects Missile for an already-equipped crossbow instead of sending a server-rejected Melee request.

Co-Authored-By: Codex <codex@openai.com>

tests/AcDream.Core.Tests/Items/ClientObjectTableTests.cs

@@ -359,6 +359,28 @@ public sealed class ClientObjectTableTests
         Assert.Equal(0u, o.IconId);   // data not set — CreateObject fills it
     }
 
+    [Fact]
+    public void RecordMembership_OwnedEquip_UsesSameIndexShapeAsLiveWield()
+    {
+        const uint playerGuid = 0x50000001u;
+        const uint weaponGuid = 0x500000B9u;
+        var table = new ClientObjectTable();
+
+        table.RecordMembership(
+            weaponGuid,
+            containerId: playerGuid,
+            equip: EquipMask.MissileWeapon,
+            priority: 7u);
+
+        var weapon = table.Get(weaponGuid);
+        Assert.NotNull(weapon);
+        Assert.Equal(playerGuid, weapon!.ContainerId);
+        Assert.Equal(-1, weapon.ContainerSlot);
+        Assert.Equal(EquipMask.MissileWeapon, weapon.CurrentlyEquippedLocation);
+        Assert.Equal(7u, weapon.Priority);
+        Assert.Equal(new[] { weaponGuid }, table.GetContents(playerGuid));
+    }
+
     [Fact]
     public void Ingest_AfterMembership_FillsData_NoDuplicate() // out-of-order: PD then CreateObject
     {