Update Docker configuration and add Gitea CI/CD workflows

- Change Docker image in docker-compose.prod.yml to use 'portfolio-app:latest'.
- Add new scripts for Gitea deployment and setup of Gitea runner.
- Introduce CI/CD workflows for automated testing, security scanning, and deployment in Gitea.
- Enhance package.json with new deployment scripts for Gitea integration.

.gitea/workflows/ci-cd.yml

@@ -0,0 +1,126 @@
+name: CI/CD Pipeline
+
+on:
+  push:
+    branches: [ main, production ]
+  pull_request:
+    branches: [ main, production ]
+
+env:
+  NODE_VERSION: '20'
+  DOCKER_IMAGE: portfolio-app
+  CONTAINER_NAME: portfolio-app
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - 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
+
+      - name: Build application
+        run: npm run build
+
+  security:
+    runs-on: ubuntu-latest
+    needs: test
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Run Trivy vulnerability scanner
+        uses: aquasecurity/trivy-action@master
+        with:
+          scan-type: 'fs'
+          scan-ref: '.'
+          format: 'sarif'
+          output: 'trivy-results.sarif'
+
+  build:
+    runs-on: ubuntu-latest
+    needs: [test, security]
+    if: github.ref == 'refs/heads/production'
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build Docker image
+        run: |
+          docker build -t ${{ env.DOCKER_IMAGE }}:latest .
+          docker tag ${{ env.DOCKER_IMAGE }}:latest ${{ env.DOCKER_IMAGE }}:$(date +%Y%m%d-%H%M%S)
+
+      - name: Save Docker image
+        run: |
+          docker save ${{ env.DOCKER_IMAGE }}:latest | gzip > ${{ env.DOCKER_IMAGE }}.tar.gz
+
+      - name: Upload Docker image artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: docker-image
+          path: ${{ env.DOCKER_IMAGE }}.tar.gz
+          retention-days: 7
+
+  deploy:
+    runs-on: ubuntu-latest
+    needs: build
+    if: github.ref == 'refs/heads/production'
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Download Docker image artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: docker-image
+          path: ./
+
+      - name: Load Docker image
+        run: |
+          gunzip -c ${{ env.DOCKER_IMAGE }}.tar.gz | docker load
+
+      - name: Stop existing container
+        run: |
+          docker stop ${{ env.CONTAINER_NAME }} || true
+          docker rm ${{ env.CONTAINER_NAME }} || true
+
+      - name: Start new container
+        run: |
+          docker run -d \
+            --name ${{ env.CONTAINER_NAME }} \
+            --restart unless-stopped \
+            -p 3000:3000 \
+            -e NODE_ENV=production \
+            ${{ env.DOCKER_IMAGE }}:latest
+
+      - name: Wait for container to be ready
+        run: |
+          sleep 10
+          timeout 60 bash -c 'until curl -f http://localhost:3000/api/health; do sleep 2; done'
+
+      - name: Health check
+        run: |
+          curl -f http://localhost:3000/api/health
+          echo "✅ Deployment successful!"
+
+      - name: Cleanup old images
+        run: |
+          docker image prune -f
+          docker system prune -f