Self-hosted qa runner has no node in PATH, so the Node-based
actions/checkout@v4 action can't run there. Swap it for a bash git
fetch/checkout, matching the pipeline's no-marketplace-action convention.
Dockerfile.ci COPYs full project directories after restoring inside
the container. Without a .dockerignore, the host's obj/bin (built
with a different local SDK than the container's) got copied over the
container's fresh restore output, corrupting project.assets.json and
crashing ResolvePackageAssets with a NullReferenceException on publish.
Aspire.Hosting.PostgreSQL/JavaScript pull in MessagePack 2.5.192
transitively, which has multiple known vulnerabilities and fails the
build with TreatWarningsAsErrors. Pinned a direct reference to the
patched 2.5.302 (same major, no API break).
Microsoft.AspNetCore.OpenApi 10.0.5 pulls in Microsoft.OpenApi 2.0.0
transitively, which has a known high-severity vulnerability
(GHSA-v5pm-xwqc-g5wc) and fails the build with TreatWarningsAsErrors.
Pinned a direct reference to the patched 2.9.0 (still 2.x, API-compatible).
Gitea runner build failed with "dotnet: command not found". Added
ensure_dotnet() to lib.sh, using the vendored dotnet-install.sh to
bootstrap the SDK into .dotnet/ when not already on PATH, called from
build.sh/test.sh/prepush.sh. Also trigger CI on build-runner-fix to
verify the fix.
