feat(agent): implement local Canvas Agent with MCP integration and HTTP server

docs/src/app/(home)/page.tsx

@@ -3,7 +3,7 @@ import { ArrowUpRight, BookOpen, Rocket } from 'lucide-react';
 import { appName, gitConfig } from '@/lib/shared';
 
 const githubUrl = `https://github.com/${gitConfig.user}/${gitConfig.repo}`;
-const demoUrl = 'https://infinite-canvas-cpco.onrender.com/';
+const demoUrl = 'https://canvas.best/';
 const starHistoryUrl = `https://www.star-history.com/?repos=${gitConfig.user}%2F${gitConfig.repo}&type=date`;
 const starHistoryChart = `https://api.star-history.com/chart?repos=${gitConfig.user}/${gitConfig.repo}&type=date&transparent=true`;
 const darkStarHistoryChart = `${starHistoryChart}&theme=dark`;

docs/src/lib/layout.shared.tsx

@@ -28,7 +28,7 @@ export function baseOptions(): BaseLayoutProps {
             <ArrowUpRight className="size-4" />
           </span>
         ),
-        url: 'https://infinite-canvas-cpco.onrender.com/',
+        url: 'https://canvas.best/',
         external: true,
         on: 'nav',
       },