fix(interaction): restore retail loot placement and world-drop projection

src/AcDream.App/World/LiveEntityRuntime.cs

@@ -1154,6 +1154,29 @@ public sealed class LiveEntityRuntime : ILiveEntityRadarSource
         return false;
     }
 
+    /// <summary>
+    /// Resolves a current top-level world projection even when its spatial
+    /// bucket is pending/nonresident. Unlike interaction eligibility, this
+    /// does not impose render visibility; unlike <see cref="TryGetWorldEntity"/>,
+    /// it rejects a retained leave-world owner whose pose is historical.
+    /// </summary>
+    public bool TryGetSpatiallyProjectedRecord(
+        uint serverGuid,
+        out LiveEntityRecord record)
+    {
+        if (_projections.TryGetCurrent(serverGuid, out LiveEntityRecord found)
+            && found.WorldEntity is not null
+            && found.ProjectionKind is LiveEntityProjectionKind.World
+            && found.IsSpatiallyProjected)
+        {
+            record = found;
+            return true;
+        }
+
+        record = null!;
+        return false;
+    }
+
     /// <summary>
     /// Resolves a top-level object that currently participates in picking,
     /// targeting, radar, and wire-driven MoveTo/Sticky establishment.
@@ -1762,6 +1785,12 @@ public sealed class LiveEntityRuntime : ILiveEntityRadarSource
         && ReferenceEquals(current, record)
         && current.PositionAuthorityVersion == authorityVersion;
 
+    internal bool IsCurrentPositionAuthority(
+        RuntimeEntityRecord canonical,
+        ulong authorityVersion) =>
+        _directory.IsCurrent(canonical)
+        && canonical.PositionAuthorityVersion == authorityVersion;
+
     internal bool IsCurrentStateAuthority(
         LiveEntityRecord record,
         ulong authorityVersion) =>
@@ -1783,6 +1812,12 @@ public sealed class LiveEntityRuntime : ILiveEntityRadarSource
         && ReferenceEquals(current, record)
         && current.VelocityAuthorityVersion == authorityVersion;
 
+    internal bool IsCurrentVelocityAuthority(
+        RuntimeEntityRecord canonical,
+        ulong authorityVersion) =>
+        _directory.IsCurrent(canonical)
+        && canonical.VelocityAuthorityVersion == authorityVersion;
+
     internal bool IsCurrentMovementAuthority(
         LiveEntityRecord record,
         ulong authorityVersion) =>