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/present.md

@@ -0,0 +1,21 @@
+# RHISwapChain::Present
+
+```cpp
+virtual void Present(uint32_t syncInterval = 1, uint32_t flags = 0) = 0;
+```
+
+呈现后台缓冲区。
+
+**参数：**
+- `syncInterval` - 垂直同步间隔（0=立即，1+=等待）
+- `flags` - 呈现标志
+
+**示例：**
+
+```cpp
+swapChain->Present(1); // 垂直同步呈现
+```
+
+## 相关文档
+
+- [RHISwapChain 总览](swap-chain.md) - 返回类总览