security: clean repository without media files and sensitive data

- Removed area/ directory with 816MB of media files
- Removed sensitive FTP credentials from Git history
- Implemented .env.upload system for secure deployments
- Added comprehensive .gitignore for future protection

This commit represents a clean slate with all sensitive data removed.

deployment/scripts/setup.sh

@@ -0,0 +1,52 @@
+#!/bin/sh
+# Setup-Skript für initiales Deployment
+
+echo "🔧 Starte initiales Setup..."
+
+# Prüfe ob wir im deployment/scripts/ Ordner sind und wechsle zur Projekt-Root
+if [ "$(basename "$PWD")" = "scripts" ]; then
+    cd ../..
+elif [ "$(basename "$PWD")" = "deployment" ]; then
+    cd ..
+fi
+
+# Dependencies installieren
+echo "📦 Installiere Frontend Dependencies..."
+cd frontend
+npm install
+
+# Development Build für Testing
+echo "🛠️ Erstelle Development Build..."
+npm run build
+
+# Build ins Backend kopieren
+echo "📁 Kopiere Build-Dateien..."
+cp -r build/* ../backend/public/
+
+# Rechte setzen
+echo "🔒 Setze Dateiberechtigungen..."
+chmod -R 755 ../backend/public
+
+# Erstelle notwendige Verzeichnisse
+echo "📂 Erstelle Backend-Verzeichnisse..."
+mkdir -p ../backend/storage/data
+chmod 755 ../backend/storage
+chmod 755 ../backend/storage/data
+
+# Erstelle Standard-Konfigurationsdateien falls nicht vorhanden
+cd ../backend/storage/data
+if [ ! -f "admins.json" ]; then
+    echo '[]' > admins.json
+    chmod 644 admins.json
+fi
+if [ ! -f "viewers.json" ]; then
+    echo '[]' > viewers.json
+    chmod 644 viewers.json
+fi
+if [ ! -f "clients.json" ]; then
+    echo '[]' > clients.json
+    chmod 644 clients.json
+fi
+
+echo "✅ Setup abgeschlossen!"
+echo "📝 Konfiguriere nun deine Benutzer in backend/storage/data/"