Move app to apps/web-react in pnpm workspace layout

apps/web-react/app/utils/request-context.server.ts

@@ -0,0 +1,26 @@
+import { AsyncLocalStorage } from "node:async_hooks";
+
+// TODO: this is only needed for our current hacky toast setup, once a proper one in place this middleware can be deleted
+
+interface RequestContext {
+	/** Normalized request URL, as provided to middleware in framework mode
+	 *  (single-fetch `.data` suffix and internal search params removed). */
+	url: URL;
+}
+
+const requestContextAsyncLocalStorage = new AsyncLocalStorage<RequestContext>();
+
+/** Runs `fn` with the given request context available to server-side helpers
+ *  (e.g. toast redirects) that don't otherwise receive the request. */
+export function runWithRequestContext<T>(
+	context: RequestContext,
+	fn: () => T,
+): T {
+	return requestContextAsyncLocalStorage.run(context, fn);
+}
+
+/** Normalized pathname of the current request, or `undefined` outside a request
+ *  context. Used to build absolute redirects from helpers lacking the request. */
+export function currentRequestPathname(): string | undefined {
+	return requestContextAsyncLocalStorage.getStore()?.url.pathname;
+}