fix production prerender without auth config

app/admin/layout.tsx

@@ -0,0 +1,5 @@
+import { Suspense } from "react";
+
+export default function AdminLayout({ children }: LayoutProps<"/admin">) {
+  return <Suspense fallback={null}>{children}</Suspense>;
+}

components/page-progress.tsx

@@ -1,15 +1,14 @@
 "use client"
 
-import { Suspense, useEffect, useRef, useState } from "react"
-import { usePathname, useSearchParams } from "next/navigation"
+import { useEffect, useRef, useState } from "react"
 import { Progress } from "@/components/ui/progress"
 
 function PageProgressContent() {
-  const pathname = usePathname()
-  const searchParams = useSearchParams()
   const [progress, setProgress] = useState(0)
   const [isVisible, setIsVisible] = useState(false)
+  const [navigationKey, setNavigationKey] = useState(0)
   const intervalRef = useRef<ReturnType<typeof setInterval> | null>(null)
+  const navigationUrlRef = useRef<string | null>(null)
 
   // Start progress on click
   useEffect(() => {
@@ -26,6 +25,7 @@ function PageProgressContent() {
       
       // Only show progress for actual page transitions
       if (isInternal && !isSamePage && target.getAttribute("target") !== "_blank") {
+        navigationUrlRef.current = window.location.href
         setIsVisible(true)
         setProgress(15)
         
@@ -48,6 +48,26 @@ function PageProgressContent() {
     return () => document.removeEventListener("click", handleClick)
   }, [])
 
+  // Detect completion without reading Next.js URL hooks during prerendering.
+  useEffect(() => {
+    if (!isVisible || !navigationUrlRef.current) return
+    const initialUrl = navigationUrlRef.current
+    const checkInterval = window.setInterval(() => {
+      if (window.location.href !== initialUrl) {
+        window.clearInterval(checkInterval)
+        setNavigationKey((key) => key + 1)
+      }
+    }, 50)
+    const fallback = window.setTimeout(() => {
+      window.clearInterval(checkInterval)
+      setNavigationKey((key) => key + 1)
+    }, 10_000)
+    return () => {
+      window.clearInterval(checkInterval)
+      window.clearTimeout(fallback)
+    }
+  }, [isVisible])
+
   // Finish progress on route change
   useEffect(() => {
     if (intervalRef.current) {
@@ -60,6 +80,7 @@ function PageProgressContent() {
       const timeout = setTimeout(() => {
         setIsVisible(false)
         setTimeout(() => setProgress(0), 300) // Reset after hiding
+        navigationUrlRef.current = null
       }, 400)
       return () => {
         clearTimeout(finishTimeout)
@@ -67,7 +88,7 @@ function PageProgressContent() {
       }
     }
     // eslint-disable-next-line react-hooks/exhaustive-deps
-  }, [pathname, searchParams])
+  }, [navigationKey])
 
   if (!isVisible && progress === 0) return null
 
@@ -82,9 +103,5 @@ function PageProgressContent() {
 }
 
 export function PageProgress() {
-  return (
-    <Suspense fallback={null}>
-      <PageProgressContent />
-    </Suspense>
-  )
+  return <PageProgressContent />
 }

lib/auth/server.ts

@@ -26,6 +26,12 @@ function required(name: string): string {
   return value;
 }
 
+function hasAuthConfiguration(): boolean {
+  return ["DATABASE_URL", "BETTER_AUTH_URL", "BETTER_AUTH_SECRET", "ADMIN_EMAIL"].every(
+    (name) => Boolean(process.env[name]),
+  );
+}
+
 function createAuth() {
   const adminEmail = required("ADMIN_EMAIL");
 
@@ -109,6 +115,11 @@ export async function getAdminSession(): Promise<AdminSession | null> {
     };
   }
 
+  // Public pages can be prerendered without the runtime auth secret. In that
+  // case the header simply omits the admin link; auth routes still fail loudly
+  // through getAuth() when authentication is actually used.
+  if (!hasAuthConfiguration()) return null;
+
   const session = await getAuth().api.getSession({ headers: await headers() });
   if (
     !session?.session ||