fix(sandbox): satisfy linux clippy timeout import #2455

Job	Run time
Resolve PR metadata	8s
build-gateway / Resolve build plan	4s
build-cli / Resolve build plan	4s
build-supervisor / Resolve build plan	4s
build-gateway / Rust gateway (amd64) / gateway (amd64)	5m 50s
build-gateway / Rust gateway (arm64) / gateway (arm64)	7m 5s
build-supervisor / Rust sandbox (arm64) / sandbox (arm64)	3m 42s
build-supervisor / Rust sandbox (amd64) / sandbox (amd64)	3m 36s
build-cli / Rust cli (amd64) / cli (amd64)	4m 9s
build-supervisor / Build supervisor (arm64)	1m 23s
build-supervisor / Build supervisor (amd64)	1m 20s
build-cli / Build ${{ inputs.component }} (${{ matrix.arch }})	-1s
build-cli / Merge ${{ inputs.component }} manifest	0s
build-gateway / Build gateway (amd64)	1m 18s
build-gateway / Build gateway (arm64)	1m 26s
build-supervisor / Merge supervisor manifest	1m 3s
gpu-e2e	0s
GPU E2E result	0s
build-gateway / Merge gateway manifest	1m 4s
e2e / E2E (rust-podman-rootless, ubuntu-24.04)	17m 49s
e2e / E2E (rust-podman-rootless, ubuntu-26.04)	18m 37s
e2e / E2E (rust-docker)	8m 13s
e2e / E2E (mcp)	6m 41s
e2e / E2E (python)	6m 54s
kubernetes-e2e (v1beta1, v0.5.0, combined) / Kubernetes E2E (Rust smoke, combined, Agent Sandbox v1beta1)	9m 39s
kubernetes-e2e (v1beta1, v0.5.0, sidecar, deploy/helm/openshell/ci/values-sidecar.yaml) / Kubernetes E2E (Rust smoke, sidecar, Agent Sandbox v1beta1)	8m 54s
kubernetes-e2e (v1alpha1, v0.4.6, combined) / Kubernetes E2E (Rust smoke, combined, Agent Sandbox v1alpha1)	9m 33s
Kubernetes HA E2E result	0s
kubernetes-ha-e2e	-1s
Core E2E result	3s
	1h 58m 37s

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