fix: hydration mismatch in AppLayout + More page cleanup

src/app/app/layout.tsx

@@ -1,16 +1,7 @@
 "use client";
 
-import { usePwaMode } from "@/lib/use-pwa-mode";
 import { PwaShell } from "@/components/pwa-shell";
 
 export default function AppLayout({ children }: { children: React.ReactNode }) {
-  const { isPwa } = usePwaMode();
-
-  // In installed PWA mode, ConditionalShell already wraps everything in PwaShell.
-  // Only apply PwaShell here when browsing /app in a regular browser tab.
-  if (isPwa) {
-    return <>{children}</>;
-  }
-
   return <PwaShell>{children}</PwaShell>;
 }

src/app/app/more/page.tsx

@@ -49,7 +49,7 @@
           <Link
             key={href}
             href={href}
-            className="flex items-center gap-4 rounded-2xl border border-border-default bg-bg-surface p-4 transition hover:border-accent/50"
+            className="flex items-center gap-4 p-2 -mx-2 rounded-xl transition hover:bg-accent/5"
           >
             <div className="flex size-12 shrink-0 items-center justify-center rounded-xl bg-accent/10">
               <Icon className="size-6 text-accent" />
@@ -69,12 +69,12 @@
         href="https://github.com/sparshsam/openproof"
         target="_blank"
         rel="noreferrer"
-        className="flex items-center gap-4 rounded-2xl border border-border-default bg-bg-surface p-4 transition hover:border-accent/50"
+        className="flex items-center gap-4 p-2 -mx-2 rounded-xl transition hover:bg-accent/5"
       >
         <div className="flex size-12 shrink-0 items-center justify-center rounded-xl bg-accent/10">
           <ExternalLink className="size-6 text-accent" />
         </div>
-        <div className="flex-1">
+        <div className="flex-1 min-w-0">
           <p className="font-semibold text-text-primary">GitHub</p>
           <p className="mt-0.5 text-sm text-text-secondary">
             Source code, issues, and contribution guide
@@ -100,9 +100,23 @@
       </div>
 
       <p className="text-center text-xs text-text-muted">
-        OpenProof v0.9.3 &middot; AGPL-3.0
+        OpenProof v0.9.4 &middot; AGPL-3.0
       </p>
 
+      {/* Kovina wordmark — visible on all devices */}
+      <div className="pt-4 text-center">
+        <a className="inline-block" href="https://kovina.org" rel="noreferrer" target="_blank" aria-label="Kovina">
+          <style>{`
+            [data-theme="dark"] .more-kovina-light { opacity: 0 !important; }
+            [data-theme="dark"] .more-kovina-dark { opacity: 1 !important; }
+          `}</style>
+          <span className="relative inline-block h-[18px] w-[140px] sm:w-[180px] align-middle">
+            <img alt="" className="more-kovina-light absolute inset-0 h-[18px] w-[140px] sm:w-[180px] transition-opacity duration-300" src="/kovina-wordmark.svg" />
+            <img alt="" className="more-kovina-dark absolute inset-0 h-[18px] w-[140px] sm:w-[180px] transition-opacity duration-300 opacity-0" src="/kovina-wordmark-white.svg" />
+          </span>
+        </a>
+      </div>
+
       {/* Footer spacer for bottom nav on mobile */}
       <div className="h-20 md:hidden" />
     </div>

src/components/conditional-shell.tsx

@@ -26,7 +26,7 @@ export function ConditionalShell({ children }: { children: React.ReactNode }) {
     }
   }, [isPwa, pathname, router]);
 
-  // After hydration: use PWA-aware routing (may differ from SSR)
+  // After hydration: use PWA-aware routing
   if (hydrated && isPwa) {
     // While redirecting from / → /app, show a minimal placeholder
     if (pathname === "/") {
@@ -36,10 +36,17 @@ export function ConditionalShell({ children }: { children: React.ReactNode }) {
         </PwaShell>
       );
     }
+    // /app routes: AppLayout provides PwaShell — pass through
+    if (pathname.startsWith("/app")) {
+      return <>{children}</>;
+    }
+    // Non-/app routes: wrap in PwaShell here
     return <PwaShell>{children}</PwaShell>;
   }
 
   // Before hydration OR browser mode: pathname-based routing (matches SSR)
+  // /app routes: AppLayout always provides PwaShell
+  // Non-/app routes: AppShell provides the website layout
   const isAppRoute = pathname.startsWith("/app");
   if (isAppRoute) {
     return <>{children}</>;