fix(ci): budget native Windows coverage timing

scripts/ci-workflow.spec.ts

@@ -64,6 +64,9 @@ describe('CI workflow', () => {
     expect(windowsNative['runs-on']).toContain('dsh-windows-2025-16core')
     expect(windowsNative.name).toBe('windows node 24 / native complete')
     expect(windowsNative.if).toBe("github.event_name == 'pull_request'")
+    expect(windowsNative.env).toMatchObject({
+      DSH_COVERAGE_TEST_TIMEOUT_MS: '15000',
+    })
     const nativeCommandSteps = (windowsNative.steps as unknown[]).filter((step): step is Record<string, unknown> & { run: string } => (
       isRecord(step) && typeof step.run === 'string'
     ))