fix(rhi): Fix RHI abstraction layer API docs per api-skill.md template

- Rename texture/dtor.md to destructor.md per template spec
- Remove duplicate non-hyphenated fence docs (getnativehandle.md, issignaled.md, getcompletedvalue.md)
- Fix template field issues:
  - swap-chain, command-queue: 类型 now uses 'class (abstract)'
  - sampler: 头文件 now uses full path 'XCEngine/RHI/RHISampler.h'
  - types: 类型 fixed from 'structs' to 'struct'
  - enums: 类型 fixed from 'enums' to 'enum class'
- Fix include paths in command-queue and pipeline-layout code examples
- Create missing constructor/destructor docs for 11 classes:
  buffer, texture, shader, device, command-list, command-queue,
  fence, sampler, swap-chain, pipeline-state, pipeline-layout
- Update class overview pages to include constructor/destructor entries

docs/api/rhi/pipeline-state/constructor.md

@@ -0,0 +1,28 @@
+# RHIPipelineState::RHIPipelineState
+
+```cpp
+RHIPipelineState() = default;
+```
+
+默认构造函数，创建空的 RHIPipelineState 对象。
+
+**参数：** 无
+
+**返回：** 无
+
+**线程安全：** ✅
+
+**复杂度：** O(1)
+
+**示例：**
+
+```cpp
+// 通过设备创建管线状态
+RHIPipelineState* pipelineState = device->CreatePipelineState(desc);
+// pipelineState 现在是一个有效的管线状态引用
+```
+
+## 相关文档
+
+- [RHIPipelineState 总览](pipeline-state.md) - 返回类总览
+- [CreatePipelineState](../device/create-pipeline-state.md) - 创建管线状态

docs/api/rhi/pipeline-state/destructor.md

@@ -0,0 +1,29 @@
+# RHIPipelineState::~RHIPipelineState
+
+```cpp
+virtual ~RHIPipelineState() = default;
+```
+
+虚析构函数，确保派生类对象通过基类指针删除时能正确调用析构函数。
+
+**参数：** 无
+
+**返回：** 无
+
+**线程安全：** ✅
+
+**复杂度：** O(1)
+
+**示例：**
+
+```cpp
+// 通过基类指针销毁管线状态对象
+RHIPipelineState* pipelineState = device->CreatePipelineState(desc);
+// ... 使用 pipelineState ...
+delete pipelineState; // 自动调用派生类析构函数
+```
+
+## 相关文档
+
+- [RHIPipelineState 总览](pipeline-state.md) - 返回类总览
+- [Shutdown](shutdown.md) - 关闭管线状态

docs/api/rhi/pipeline-state/pipeline-state.md

@@ -21,6 +21,8 @@
 
 | 方法 | 描述 |
 |------|------|
+| [`RHIPipelineState`](constructor.md) | 默认构造函数 |
+| [`~RHIPipelineState`](destructor.md) | 虚析构函数 |
 | [`Shutdown`](shutdown.md) | 关闭并释放管线状态资源 |
 | [`Bind`](bind.md) | 将管线状态绑定到渲染上下文 |
 | [`Unbind`](unbind.md) | 将管线状态从渲染上下文解绑 |