webgpu demo

implementations/Catcrafts-Root.cpp

@@ -10,6 +10,7 @@ export module Catcrafts:Root_impl;
 import :Root;
 import :Views;
 import :Blog;
+import :Demo;
 import Crafter.Graphics;
 import std;
 
@@ -17,6 +18,11 @@ using namespace Crafter;
 
 namespace Catcrafts {
     void RenderRoot(const std::string_view route) {
+        // Every route change replaces <main>'s innerHTML, which would
+        // orphan the demo canvas if it's currently mounted inside a post.
+        // Detach + hide it first; the post renderer re-mounts if needed.
+        UnmountDemo();
+
         std::string currentRoute = std::string(route);
 
         if(currentRoute == "/blog" || currentRoute == "/") {