feat: Setup zero-downtime deployments for production and dev branches

- Created separate workflows for production and dev deployments
- Production branch → dk0.dev (port 3000)
- Dev branch → dev.dk0.dev (port 3002)
- Zero-downtime deployment pattern (start new, wait for health, remove old)
- Complete isolation between environments (separate containers, databases, networks)
- Cleaned up unused code and files:
  - Removed unused GhostEditor and ResizableGhostEditor components
  - Removed old/unused workflows and markdown files
  - Fixed docker-compose references
- Upgraded dependencies to latest compatible versions
- Fixed TypeScript errors in editor page
- Updated staging to use dev.dk0.dev domain

.gitea/workflows/production-deploy.yml

@@ -0,0 +1,129 @@
+name: Production Deployment (Zero Downtime)
+
+on:
+  push:
+    branches: [ production ]
+
+env:
+  NODE_VERSION: '20'
+  DOCKER_IMAGE: portfolio-app
+  IMAGE_TAG: production
+
+jobs:
+  deploy-production:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Run linting
+        run: npm run lint
+
+      - name: Run tests
+        run: npm run test:production
+
+      - name: Build application
+        run: npm run build
+
+      - name: Build Docker image
+        run: |
+          echo "🏗️ Building production Docker image..."
+          docker build -t ${{ env.DOCKER_IMAGE }}:${{ env.IMAGE_TAG }} .
+          docker tag ${{ env.DOCKER_IMAGE }}:${{ env.IMAGE_TAG }} ${{ env.DOCKER_IMAGE }}:latest
+          echo "✅ Docker image built successfully"
+
+      - name: Zero-Downtime Production Deployment
+        run: |
+          echo "🚀 Starting zero-downtime production deployment..."
+          
+          COMPOSE_FILE="docker-compose.production.yml"
+          CONTAINER_NAME="portfolio-app"
+          HEALTH_PORT="3000"
+          
+          # Backup current container ID if running
+          OLD_CONTAINER=$(docker ps -q -f name=$CONTAINER_NAME || echo "")
+          
+          # Start new container with updated image (docker-compose will handle this)
+          echo "🆕 Starting new production container..."
+          docker compose -f $COMPOSE_FILE up -d --no-deps --build portfolio
+          
+          # Wait for new container to be healthy
+          echo "⏳ Waiting for new container to be healthy..."
+          for i in {1..60}; do
+            NEW_CONTAINER=$(docker ps -q -f name=$CONTAINER_NAME)
+            if [ ! -z "$NEW_CONTAINER" ]; then
+              # Check health status
+              HEALTH=$(docker inspect $NEW_CONTAINER --format='{{.State.Health.Status}}' 2>/dev/null || echo "starting")
+              if [ "$HEALTH" == "healthy" ]; then
+                echo "✅ New container is healthy!"
+                break
+              fi
+              # Also check HTTP health endpoint
+              if curl -f http://localhost:$HEALTH_PORT/api/health > /dev/null 2>&1; then
+                echo "✅ New container is responding!"
+                break
+              fi
+            fi
+            echo "⏳ Waiting... ($i/60)"
+            sleep 2
+          done
+          
+          # Verify new container is working
+          if ! curl -f http://localhost:$HEALTH_PORT/api/health > /dev/null 2>&1; then
+            echo "❌ New container failed health check!"
+            docker compose -f $COMPOSE_FILE logs --tail=50 portfolio
+            exit 1
+          fi
+          
+          # Remove old container if it exists and is different
+          if [ ! -z "$OLD_CONTAINER" ]; then
+            NEW_CONTAINER=$(docker ps -q -f name=$CONTAINER_NAME)
+            if [ "$OLD_CONTAINER" != "$NEW_CONTAINER" ]; then
+              echo "🧹 Removing old container..."
+              docker stop $OLD_CONTAINER 2>/dev/null || true
+              docker rm $OLD_CONTAINER 2>/dev/null || true
+            fi
+          fi
+          
+          echo "✅ Production deployment completed with zero downtime!"
+        env:
+          NODE_ENV: production
+          LOG_LEVEL: ${{ vars.LOG_LEVEL || 'info' }}
+          NEXT_PUBLIC_BASE_URL: ${{ vars.NEXT_PUBLIC_BASE_URL || 'https://dk0.dev' }}
+          MY_EMAIL: ${{ vars.MY_EMAIL }}
+          MY_INFO_EMAIL: ${{ vars.MY_INFO_EMAIL }}
+          MY_PASSWORD: ${{ secrets.MY_PASSWORD }}
+          MY_INFO_PASSWORD: ${{ secrets.MY_INFO_PASSWORD }}
+          ADMIN_BASIC_AUTH: ${{ secrets.ADMIN_BASIC_AUTH }}
+          N8N_WEBHOOK_URL: ${{ vars.N8N_WEBHOOK_URL || '' }}
+          N8N_SECRET_TOKEN: ${{ secrets.N8N_SECRET_TOKEN || '' }}
+
+      - name: Production Health Check
+        run: |
+          echo "🔍 Running production health checks..."
+          for i in {1..20}; do
+            if curl -f http://localhost:3000/api/health && curl -f http://localhost:3000/ > /dev/null; then
+              echo "✅ Production is fully operational!"
+              exit 0
+            fi
+            echo "⏳ Waiting for production... ($i/20)"
+            sleep 3
+          done
+          echo "❌ Production health check failed!"
+          docker compose -f docker-compose.production.yml logs --tail=50
+          exit 1
+
+      - name: Cleanup
+        run: |
+          echo "🧹 Cleaning up old images..."
+          docker image prune -f
+          echo "✅ Cleanup completed"