fix: improve doc link navigation and tree display

- Fix link resolution with proper relative/absolute path handling
- Improve link styling with underline decoration
- Hide leaf nodes from tree, only show directories
- Fix log file path for packaged app

docs/api/rhi/swap-chain/swap-chain.md

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+# RHISwapChain
+
+**命名空间**: `XCEngine::RHI`
+
+**类型**: `class` (abstract)
+
+**描述**: GPU 交换链抽象接口，用于管理窗口渲染和帧缓冲区切换。
+
+## 公共方法
+
+| 方法 | 描述 |
+|------|------|
+| [`Shutdown`](shutdown.md) | 关闭并释放资源 |
+| [`GetCurrentBackBufferIndex`](get-current-back-buffer-index.md) | 获取当前后台缓冲区索引 |
+| [`GetCurrentBackBuffer`](get-current-back-buffer.md) | 获取当前后台缓冲区 |
+| [`Present`](present.md) | 呈现画面 |
+| [`Resize`](resize.md) | 调整交换链大小 |
+| [`SetFullscreen`](set-fullscreen.md) | 设置全屏模式 |
+| [`IsFullscreen`](is-fullscreen.md) | 检查是否全屏 |
+| [`ShouldClose`](should-close.md) | 检查是否应关闭 |
+| [`SetShouldClose`](set-should-close.md) | 设置关闭标志 |
+| [`PollEvents`](poll-events.md) | 处理窗口事件 |
+| [`GetNativeHandle`](get-native-handle.md) | 获取原生句柄 |
+
+## 使用示例
+
+```cpp
+while (!swapChain->ShouldClose()) {
+    swapChain->PollEvents();
+    RHITexture* backBuffer = swapChain->GetCurrentBackBuffer();
+    commandList->Reset();
+    commandList->SetRenderTargets(1, &backBuffer, nullptr);
+    commandList->ClearRenderTarget(backBuffer, clearColor);
+    commandList->Close();
+    commandQueue->ExecuteCommandLists(1, (void**)&commandList);
+    swapChain->Present(1, 0);
+}
+```
+
+## 相关文档
+
+- [../rhi/rhi.md](../rhi.md) - RHI 模块总览
+- [RHITexture](../texture/texture.md) - 纹理资源