add the build version

svelte.config.js

@@ -6,7 +6,14 @@ const config = {
 		// Force runes mode for the project, except for libraries. Can be removed in svelte 6.
 		runes: ({ filename }) => (filename.split(/[/\\]/).includes('node_modules') ? undefined : true)
 	},
-	kit: { adapter: adapter() }
+	kit: {
+		adapter: adapter({
+			// Generate a fallback HTML file so dynamic routes work when served statically
+			fallback: '200.html'
+		}),
+		// Disable automatic prerendering of routes since we rely on the fallback SPA behaviour
+		prerender: { entries: [] }
+	}
 };
 
 export default config;