fix: Add SSH port support and exclude deployment build from Git

- Updated .gitignore to exclude /deployment/build/ directory
- Added FTP_PORT configuration to .env.upload.example
- Enhanced upload.sh to support custom SSH ports (default 22, configurable)
- Deployment build artifacts are now properly excluded from version control

The upload script now correctly handles custom SSH ports like 2222.

deployment/scripts/upload.sh

@@ -27,9 +27,13 @@ set -a  # Export aller Variablen
 source "$ENV_FILE"
 set +a
 
+# Standard-Port falls nicht gesetzt
+FTP_PORT=${FTP_PORT:-22}
+
 echo "🔧 KONFIGURATION:"
 echo "   Host: $FTP_HOST"
 echo "   User: $FTP_USER"
+echo "   Port: $FTP_PORT"
 echo "   Path: $FTP_PATH"
 echo ""
 
@@ -73,7 +77,7 @@ echo "📤 Uploade via SFTP..."
 lftp -c "
 set sftp:auto-confirm yes;
 set ssl:verify-certificate no;
-open sftp://$FTP_USER:$FTP_PASS@$FTP_HOST;
+open sftp://$FTP_USER:$FTP_PASS@$FTP_HOST:$FTP_PORT;
 cd $FTP_PATH;
 
 lcd deployment/build;