fix(workspace): stream incremental markdown rendering

web/workspace/vitest.config.ts

@@ -0,0 +1,11 @@
+import { defineConfig, mergeConfig } from "vitest/config";
+import viteConfig from "./vite.config.ts";
+
+export default mergeConfig(
+  viteConfig,
+  defineConfig({
+    test: {
+      include: ["src/**/*.browser.spec.ts"],
+    },
+  }),
+);