fix: restore Workshop runtime URLs

apps/docs/src/lib/runtime-config.ts

@@ -0,0 +1,16 @@
+interface HomarrRuntimeConfig {
+  homarrWebsiteUrl?: string;
+  workshopApiUrl?: string;
+  workshopWebUrl?: string;
+}
+
+declare global {
+  interface Window {
+    homarrRuntimeConfig?: Readonly<HomarrRuntimeConfig>;
+  }
+}
+
+export const getRuntimeWorkshopApiUrl = (configuredUrl: string): string => {
+  if (typeof window === "undefined") return configuredUrl;
+  return window.homarrRuntimeConfig?.workshopApiUrl || configuredUrl || window.location.origin;
+};