Why: The host-wide s.sh grep counted unrelated host scripts as sandbox escapes and failed the fixed combination even when its sandbox script had exited.
Evidence: SELF unrelated sentinel produced the exact original RED, while the scoped probe stayed GREEN under the same sentinel and detected its own positive-control script; full Backend Go tests passed. Receipts: /tmp/dependency-sandbox-host-collision-{red,green}-20261014-01a1345f.json and /tmp/dependency-backend-test-repair-all-go-green-20261014-01a1345f.json.
Impact: Test process identity check only; the sandbox process isolation implementation and failure condition for its own script are unchanged.
Refs: Backend PR #196; Dev PR #537; R8/R14
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