refactor: import serverApiUrl directly from @openmapx/core/server

Drop the @/lib/env re-export and update the two callers
(apps/web/src/app/admin/layout.tsx and (legal)/terms/page.tsx) to
import serverApiUrl from @openmapx/core/server alongside the other
core/server symbols they already pull in.

Author: Medformatik

apps/web/src/app/(legal)/terms/page.tsx

@@ -1,9 +1,13 @@
 import type { LoadedIntegrationMeta } from "@openmapx/core";
-import { fetchCapabilities, fetchIntegrations, sectionSlug } from "@openmapx/core/server";
+import {
+  fetchCapabilities,
+  fetchIntegrations,
+  sectionSlug,
+  serverApiUrl,
+} from "@openmapx/core/server";
 import type { Metadata } from "next";
 import { getLocale, getTranslations } from "next-intl/server";
 import { LegalPageShell, type LegalSection } from "@/components/legal/LegalPageShell";
-import { serverApiUrl } from "@/lib/env";
 
 const sectionsEn: LegalSection[] = [
   { id: sectionSlug("1. Scope and Provider"), label: "Scope and Provider" },

apps/web/src/app/admin/layout.tsx

@@ -1,8 +1,8 @@
+import { serverApiUrl } from "@openmapx/core/server";
 import { cookies } from "next/headers";
 import { redirect } from "next/navigation";
 import type { ReactNode } from "react";
 import { AdminLayout } from "@/components/admin/AdminLayout";
-import { serverApiUrl } from "@/lib/env";
 
 async function getAdminSession() {
   const cookieStore = await cookies();

apps/web/src/lib/env.ts

@@ -61,7 +61,3 @@ export function buildClientEnv(): ClientEnv {
         : "/api/tiles/terrain/{z}/{x}/{y}.png"),
   };
 }
-
-// Re-export so existing `@/lib/env` imports keep working; canonical
-// implementation lives in @openmapx/core/server.
-export { serverApiUrl } from "@openmapx/core/server";