Job system priorities, async waits, parallel map/queue

Major refactor:
- Add job priority tiers and async wait APIs to IJobScheduler
- Implement priority-based job queues and scheduling logic
- Introduce UnsafeParallelHashMap and refactor UnsafeParallelQueue
- Refactor UnsafeSlotMap to chunked storage for scalability
- Update SlotMap/ConcurrentSlotMap for consistency and perf
- Add new benchmarks and unit tests for parallel collections
- Misc: add MemoryUtility.AlignUp, version bumps, test improvements, bug fixes

Misaki.HighPerformance.Test/Benchmark/ConcurrentSlotMapBenchmark.cs

@@ -0,0 +1,95 @@
+using BenchmarkDotNet.Attributes;
+using Misaki.HighPerformance.Collections;
+using Misaki.HighPerformance.Mathematics;
+
+namespace Misaki.HighPerformance.Test.Benchmark;
+
+public struct BigStruct
+{
+    public int a, b, c, d, e, f, g, h, i, j;
+    public long k, l, m, n, o, p, q, r, s, t;
+}
+
+public class Integer
+{
+    public BigStruct value;
+}
+
+public class ConcurrentSlotMapBenchmark
+{
+    private readonly ConcurrentSlotMap<BigStruct> _concurrentMap = new ConcurrentSlotMap<BigStruct>(1000);
+    private readonly SlotMap<BigStruct> _slotMap = new SlotMap<BigStruct>(1000);
+    private readonly BigStruct[] _slots = new BigStruct[1000];
+    private readonly Integer[] _objects = new Integer[1000];
+
+    private readonly int2[] _randomIndices1 = new int2[1000];
+    private readonly int2[] _randomIndices2 = new int2[1000];
+    private readonly int[] _randomSlots = new int[1000];
+
+    [GlobalSetup]
+    public void Setup()
+    {
+        for (var i = 0; i < 1000; i++)
+        {
+            var element = new BigStruct
+            {
+                a = i
+            };
+
+            var id = _concurrentMap.Add(element, out var generation);
+            _randomIndices1[i] = new int2(id, generation);
+
+            id = _slotMap.Add(element, out generation);
+            _randomIndices2[i] = new int2(id, generation);
+
+            _slots[i] = element;
+            _objects[i] = new Integer { value = element };
+
+            _randomSlots[i] = i;
+        }
+
+        Random.Shared.Shuffle(_randomIndices1);
+        Random.Shared.Shuffle(_randomIndices2);
+        Random.Shared.Shuffle(_randomSlots);
+    }
+
+    [Benchmark]
+    public void ConcurrentSlotMap()
+    {
+        for (var i = 0; i < 1000; i++)
+        {
+            var v = _randomIndices1[i];
+            ref var element = ref _concurrentMap.GetElementReferenceAt(v.x, v.y, out var _);
+            element.a += 1;
+        }
+    }
+
+    [Benchmark]
+    public void SlotMap()
+    {
+        for (var i = 0; i < 1000; i++)
+        {
+            var v = _randomIndices2[i];
+            ref var element = ref _slotMap.GetElementReferenceAt(v.x, v.y, out var _);
+            element.a += 1;
+        }
+    }
+
+    [Benchmark]
+    public void Array()
+    {
+        for (var i = 0; i < 1000; i++)
+        {
+            _slots[_randomSlots[i]].a += 1;
+        }
+    }
+
+    [Benchmark]
+    public void ObjectArray()
+    {
+        for (var i = 0; i < 1000; i++)
+        {
+            _objects[_randomSlots[i]].value.a += 1;
+        }
+    }
+}