All tasks dispatched to integration-direct/v1 were failing with
harness_missing_agent_repo_layer because dispatcher DSP-1 guard
requires agent-repo in the composite when AGENT_REPO_URL is set.
direct-push/v1 sets env vars (AGENT_SKIP_BRANCH_PUSH,
AGENT_EMPTY_DELIVERABLE_CHECK) that configure agent-repo's finalize.sh,
so agent-repo/v1 must precede it in the layer list.