docs: update memory and threading API docs

docs/api/memory/pool-allocator/get-name.md

@@ -0,0 +1,29 @@
+# PoolAllocator::GetName
+
+```cpp
+const char* GetName() const override;
+```
+
+返回分配器的名称字符串 "PoolAllocator"。用于调试和日志记录。
+
+**参数：** 无
+
+**返回：** 固定返回 `"PoolAllocator"` 字符串
+
+**复杂度：** O(1)
+
+**示例：**
+
+```cpp
+#include <XCEngine/Memory/PoolAllocator.h>
+#include <iostream>
+
+PoolAllocator pool(sizeof(int), 100);
+
+const char* name = pool.GetName(); // "PoolAllocator"
+std::cout << "Allocator: " << name << std::endl;
+```
+
+## 相关文档
+
+- [PoolAllocator 总览](pool-allocator.md) - 返回类总览