Fix production deployment: preserve .env file + add missing volume + simplified pipeline

.github/workflows/ci-cd.yml

@@ -195,14 +195,26 @@ jobs:
         script: |
           cd /opt/stiftung
           
-          # Stash any local changes to avoid conflicts
-          git stash push -m "Auto-stash before deployment $(date)"
+          # Check if production .env exists in root directory
+          if [ ! -f .env ]; then
+            echo "ERROR: No production .env file found at /opt/stiftung/.env"
+            echo "Please create it manually using the env-production.template as reference"
+            echo "Steps:"
+            echo "1. cp env-production.template .env"
+            echo "2. nano .env  # Edit with real production values"
+            echo "3. chmod 600 .env  # Secure permissions"
+            exit 1
+          fi
           
-          # Pull latest changes using Personal Access Token
+          echo "Production .env file found - proceeding with deployment"
+          
+          # Pull latest code changes (.env is in .gitignore so won't be touched)
           git pull https://$DEPLOY_TOKEN@github.com/remmerinio/stiftung-management-system.git main
           
           # Backup current compose.yml
-          cp compose.yml compose.yml.backup
+          if [ -f compose.yml ]; then
+            cp compose.yml compose.yml.backup
+          fi
           
           # Copy production docker compose file to the active compose.yml
           cp deploy-production/docker-compose.prod.yml compose.yml