fix(gatekeeper): enhance logging and stabilize upstream polling

packages/gatekeeper/src/app/login/page.tsx

@@ -116,6 +116,7 @@ export default async function LoginPage({ searchParams }: LoginPageProps) {
     }
 
     if (userIdentity) {
+      console.log(`[Login] Success: ${userIdentity} | Redirect: ${targetRedirect}`);
       const cookieStore = await cookies();
       // Store identity in the cookie (simplified for now, ideally signed)
       const sessionValue = JSON.stringify({
@@ -126,6 +127,8 @@ export default async function LoginPage({ searchParams }: LoginPageProps) {
 
       const isDev = process.env.NODE_ENV === "development";
 
+      console.log(`[Login] Setting Cookie: ${authCookieName} | Domain: ${cookieDomain || "Default"}`);
+
       cookieStore.set(authCookieName, sessionValue, {
         httpOnly: true,
         secure: !isDev,
@@ -136,6 +139,7 @@ export default async function LoginPage({ searchParams }: LoginPageProps) {
       });
       redirect(targetRedirect);
     } else {
+      console.log(`[Login] Failed for inputs. Redirecting back with error.`);
       redirect(`/login?error=1&redirect=${encodeURIComponent(targetRedirect)}`);
     }
   }