Why: backend main moved to 017b40f (agent-squad pin bump, E1 chain #129) and Dev's top-level agent-squad must match the nested pin the components record, otherwise test-pins flags container/Dev divergence. Evidence: check-pins green and make test rerun recorded on this head. Impact: modules/backend 5714c73 -> 017b40f; deps/agent-squad 8bbf850 -> 490b0b2. Refs: Backend PR #128/#129; agent-squad PR #51.