feat(queue): improve Resize logic and add unit tests

Refactored UnsafeQueue<T>.Resize to prevent shrinking below
current count and handle wrap-around copying correctly.
Exposed AllocationHandle in UnsafeArray<T> via a new property.
Bumped project version to 1.6.10.
Added TestUnsafeQueue class to cover core queue operations.

Misaki.HighPerformance.LowLevel/Collections/UnsafeArray.cs

@@ -81,6 +81,8 @@ public unsafe struct UnsafeArray<T> : IUnsafeCollection<T>
 #endif
     private AllocationHandle _allocationHandle;
 
+    internal readonly AllocationHandle AllocationHandle => _allocationHandle;
+
     public readonly int Count => _count;
     public readonly int Length => _count;