add heavy build

.gitea/workflows/build.yaml

@@ -0,0 +1,39 @@
+name: Build Heavy Service
+run-name: Build Heavy Service by ${{ gitea.actor }}
+
+on:
+  workflow_dispatch:
+    inputs:
+      file_count:
+        description: 'Number of files to generate (controls build time)'
+        required: false
+        default: '10000'
+  push:
+    branches:
+      - main
+      - master
+  pull_request:
+
+jobs:
+  build-and-package:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Build Docker Image
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          file: Dockerfile
+          # We don't push to a registry here since no credentials were provided,
+          # but the image is built and packaged locally in the runner.
+          push: false
+          tags: dummy-service:latest
+          # We set a high file count to ensure the build takes a significant amount of time
+          # to simulate a heavy workload in the CI system.
+          build-args: |
+            FILE_COUNT=${{ inputs.file_count || '10000' }}