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/components/rapor-listesi.tsx

@@ -333,9 +333,18 @@ export function RaporListesi({
         </p>
       ) : null}
 
+      {rapor.kapsam?.uyarlandi ? (
+        <p className="mt-3 rounded-lg border border-amber-200 bg-amber-50 px-3 py-2 text-xs text-amber-900">
+          Tercihlerine göre {rapor.kapsam.toplam} uygun program bulundu; listen{" "}
+          {rapor.kapsam.dagilim.hayal} hayal · {rapor.kapsam.dagilim.dengeli}{" "}
+          dengeli · {rapor.kapsam.dagilim.garanti} garanti olarak kuruldu. Daha
+          fazla seçenek için alan veya il filtreni genişletebilirsin.
+        </p>
+      ) : null}
+
       {tekIl ? (
         <p className="mt-3 rounded-lg border border-amber-200 bg-amber-50 px-3 py-2 text-xs text-amber-900">
-          Listenin 24 tercihi de tek şehirde (
+          Listenin {rapor.tercihler.length} tercihi de tek şehirde (
           {tekIl.toLocaleLowerCase("tr-TR")}). Boşta kalma riskini azaltmak için
           birkaç farklı şehir eklemeyi düşünebilirsin.
         </p>