refactor: update Dockerfile and authentication flow for improved user experience

- Updated Dockerfile to create a cache directory for Next.js runtime, ensuring proper permissions and ownership.
- Enhanced the authentication flow by updating the magic link expiration time from 5 to 15 minutes, improving user experience and reducing login issues.
- Added user-friendly error handling for invalid or expired magic links, providing clear feedback on the login page.
- Adjusted email templates to reflect the new 15-minute validity period for magic links.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/app/rapor/yazdir/page.tsx

@@ -47,13 +47,21 @@ export default async function YazdirPage() {
 
       <header className="border-b-2 border-slate-900 pb-4">
         <h1 className="font-heading text-2xl font-bold">
-          24 Tercihlik Kişisel Liste ve Risk Raporu
+          {rapor.tercihler.length} Tercihlik Kişisel Liste ve Risk Raporu
         </h1>
         <p className="mt-1 text-sm text-slate-600">
           Başarı sıralaması: {params.sira.toLocaleString("tr-TR")} · Puan
           türü: {PUAN_TURLERI[params.tur]}
           {params.il ? ` · İl: ${params.il}` : ""} · {tarih}
         </p>
+        {rapor.kapsam?.uyarlandi ? (
+          <p className="mt-1 text-sm text-slate-600">
+            Not: Tercihlerine göre {rapor.kapsam.toplam} uygun program bulundu;
+            liste {rapor.kapsam.dagilim.hayal} hayal ·{" "}
+            {rapor.kapsam.dagilim.dengeli} dengeli ·{" "}
+            {rapor.kapsam.dagilim.garanti} garanti olarak kuruldu.
+          </p>
+        ) : null}
       </header>
 
       <section className="mt-5">