Fix dev URL redirect to preserve request path and query

The redirect to the dev server was using config.devUrl.href directly,
which always redirected to the dev server root regardless of the
incoming request path and query string. Now constructs the redirect
URL by combining the request's pathname and search with the dev origin.

Co-authored-by: Julius Marminge <juliusmarminge@users.noreply.github.com>

Author: cursoragent

apps/server/src/http.ts

@@ -90,7 +90,8 @@ export const staticAndDevRouteLayer = HttpRouter.add(
 
     const config = yield* ServerConfig;
     if (config.devUrl) {
-      return HttpServerResponse.redirect(config.devUrl.href, { status: 302 });
+      const devTarget = new URL(`${url.pathname}${url.search}`, config.devUrl);
+      return HttpServerResponse.redirect(devTarget.href, { status: 302 });
     }
 
     if (!config.staticDir) {

apps/server/src/server.test.ts

@@ -266,7 +266,7 @@ it.layer(NodeServices.layer)("server router seam", (it) => {
       const response = yield* Effect.promise(() => fetch(url, { redirect: "manual" }));
 
       assert.equal(response.status, 302);
-      assert.equal(response.headers.get("location"), "http://127.0.0.1:5173/");
+      assert.equal(response.headers.get("location"), "http://127.0.0.1:5173/foo/bar");
     }).pipe(Effect.provide(NodeHttpServer.layerTest)),
   );