/**
 * test_doctor_sandbox_check.ts — Story 18.1 (v1.6)
 *
 * Asserts SystemDoctor's new `runtime:process-sandbox` check:
 *   1. Returns a DoctorCheck shape.
 *   2. ok=true on the current Node runner (the wrapper falls back
 *      gracefully on Node 18 and reports enforcement state honestly
 *      on Node 20+).
 *   3. detail string contains the Node major version so operators can
 *      tell at a glance whether enforcement is active.
 *   4. The check appears in runRuntimeChecks() output.
 *
 * The test spawns a real `node -e` subprocess via ProcessSandbox —
 * it's an integration-style probe but stays fast (<200ms).
 */
export {};
