Migrate from Vite to Next.js 15 with SSR

- Replace Vite + React Router with Next.js 15 App Router
- Implement i18n with next-intl (URL-based: /de, /en, /sr)
- Add SSR/SSG for all pages (48 static pages generated)
- Setup Supabase SSR client for auth
- Migrate all pages: Home, About, Portfolio, Blog, Contact, Login, Dashboard, Imprint, Privacy, Terms
- Add Docker support with standalone output
- Replace i18next with next-intl JSON translations
- Use next/image for optimized images

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/i18n/locales-old/de/pages/contact/contactinfo.ts

@@ -0,0 +1,25 @@
+export const contactinfo = {
+    // Header
+    title: 'Kontaktinformationen',
+    description: 'Sie können mich über folgende Wege erreichen',
+    // Kontaktmethoden Labels
+    addressLabel: 'Bürostandort',
+    phoneLabel: 'Telefon',
+    emailLabel: 'E-Mail',
+    // Kontaktinformationen
+    address: 'Rotdornallee, Köln',
+    phone: '+49 175 695 0979',
+    email: 'info@damjan-savic.com',
+    // Zusätzliche Informationen
+    availabilityNote: 'Geschäftszeiten: Montag bis Freitag, 9:00 - 17:00 Uhr',
+    // Aria Labels
+    aria: {
+        contactCard: 'Kontaktinformationskarte',
+        addressLink: 'Öffne Standort in Google Maps',
+        phoneLink: 'Anrufen',
+        emailLink: 'E-Mail senden',
+        externalLink: 'Öffnet in neuem Tab'
+    }
+} as const;
+// Type für Typsicherheit
+export type ContactInfoTranslations = typeof contactinfo;