Gate customer-product releases with application acceptance and hosted reuse checks

Assistant: codex
Assistant-Model: gpt-6-astra
Assistant-Session: 01a07ff8-19d0-7820-b4d0-1353833cb7fc

.forgejo/workflows/image.yaml

@@ -16,6 +16,7 @@ on:
       - "vergabe_teilnahme/**"
       - "static/**"
       - "templates/**"
+      - "conftest.py"
   workflow_dispatch:
 
 env:
@@ -42,6 +43,8 @@ jobs:
             | tar xz --strip-components=1 -C "${HOME}/bin" docker/docker
           export PATH="${HOME}/bin:${PATH}"
           docker version
+          # Test the exact source before registry login or image publication.
+          docker build --target application-tests buildctx
           echo "${REGISTRY_TOKEN}" | docker login "${REGISTRY}" -u "${REGISTRY_USER}" --password-stdin
           SHORT="${REF:0:7}"
           IMAGE="${REGISTRY}/${IMAGE_NAME}"
@@ -49,4 +52,4 @@ jobs:
           docker push "${IMAGE}:latest"
           docker push "${IMAGE}:${SHORT}"
           docker push "${IMAGE}:main-${SHORT}"
-          echo "pushed ${IMAGE}:latest ${IMAGE}:${SHORT}"
+          echo "pushed ${IMAGE}:latest ${IMAGE}:${SHORT}"