Prebundle XyFlow for linked module development

webui/vite.config.ts

@@ -79,7 +79,10 @@ function govoplanInstalledModulesPlugin(): Plugin {
 export default defineConfig({
   plugins: [govoplanInstalledModulesPlugin(), react()],
   optimizeDeps: {
-    exclude: availableWebModuleSpecifiers()
+    exclude: availableWebModuleSpecifiers(),
+    // Dataflow is discovered through the virtual module registry, so Vite's
+    // initial scan cannot see this CommonJS-backed transitive dependency.
+    include: ["@xyflow/react"]
   },
   build: {
     // Full-product builds include the host shell plus all installed module wiring.