feat: Adds CI/CD steps to build and push web container

.forgejo/workflows/images.yml

@@ -0,0 +1,37 @@
+name: Build Hello World Image
+
+on:
+  push:
+    branches:
+      - main
+    workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: git.hamburg.ccc.de
+          username: ${{ secrets.REGISTRY_USERNAME }}
+          password: ${{ secrets.REGISTRY_TOKEN }}
+      
+      - name: Build and push web image to Container Registry
+        run: |
+          docker build -t web:latest .
+          docker tag web:latest git.hamburg.ccc.de/ccchh/sunders/web:latest
+          docker push git.hamburg.ccc.de/ccchh/sunders/web:latest
+        working-directory: ./
+      
+      - name: Start Docker Compose services
+        run: |
+          docker compose up -d --wait
+          docker compose down
+        working-directory: /