a7688242a2
Mirror the cache infra added to nas-auth (commit a1ecba3): - Dockerfile: `RUN --mount=type=cache,target=/root/.nuget/packages` for restore + publish, with syntax 1.6 directive. - workflow: cache-from/cache-to registry cache mode=max, so buildkit layer cache survives across CI runs (fresh buildkit per run otherwise). First run after this still pays full cost; each subsequent run should drop ~50% off dotnet restore.