Add Gitea Actions workflow for Docker build

.gitea/workflows/build.yaml

@@ -0,0 +1,69 @@
+name: Docker Build
+
+on:
+  push:
+    branches:
+      - main
+      - master
+    tags:
+      - 'v*'
+
+jobs:
+  build-and-push:
+    name: Build and Push Docker Image
+    runs-on: act-runner-4c6g
+    env:
+      RUNNER_TOOL_CACHE: /toolcache
+
+    steps:
+      - name: Install Docker CLI
+        run: |
+          if ! command -v docker &> /dev/null; then
+            if command -v apk &> /dev/null; then
+              apk add --no-cache docker-cli
+            elif command -v apt-get &> /dev/null; then
+              apt-get update && apt-get install -y docker.io
+            else
+              curl -fsSL https://download.docker.com/linux/static/stable/x86_64/docker-24.0.7.tgz | tar xz -C /tmp
+              mv /tmp/docker/docker /usr/local/bin/
+              chmod +x /usr/local/bin/docker
+            fi
+          fi
+          docker --version
+
+      - name: Install Node.js
+        run: |
+          export PATH="/toolcache/bin:$PATH"
+          if ! command -v node &> /dev/null; then
+            if command -v apk &> /dev/null; then
+              apk add --no-cache nodejs npm
+            else
+              curl -fsSL https://nodejs.org/dist/v22.0.0/node-v22.0.0-linux-x64.tar.xz | tar -xJ -C /tmp
+              cp -r /tmp/node-v22.0.0-linux-x64/{bin,lib,share} /toolcache/
+            fi
+          fi
+          node --version
+
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Login to Gitea Container Registry
+        run: |
+          echo "${{ secrets.PACKAGES_TOKEN }}" | docker login git.viaeon.com -u "${{ github.actor }}" --password-stdin 2>&1
+
+      - name: Build Docker image
+        run: |
+          echo "Building image..."
+          docker build \
+            --label "org.opencontainers.image.source=https://git.viaeon.com/admin/sale" \
+            --label "org.opencontainers.image.revision=${{ github.sha }}" \
+            -f backend/Dockerfile \
+            -t git.viaeon.com/admin/sale:${{ github.ref_name }} \
+            -t git.viaeon.com/admin/sale:latest . 2>&1
+
+      - name: Push Docker image
+        run: |
+          echo "Pushing ${{ github.ref_name }}..."
+          docker push git.viaeon.com/admin/sale:${{ github.ref_name }} 2>&1
+          echo "Pushing latest..."
+          docker push git.viaeon.com/admin/sale:latest 2>&1