test(scripts): keep the indirect-ownership example on a test that still reaches the kernel

[thymikee]

Summary

pnpm check:affected stops at its mutation-model step on today's main: scripts/mutation/ownership.test.ts asserts that src/commands/interaction/runtime/gestures.test.ts indirectly owns the scroll-edge-state kernel, and the gesture test's import closure no longer reaches the scroll runtime at all. Any change touching a lane file runs that step, so this blocks more than it looks like it does — an edit to .github/workflows/ios.yml trips it.

The derivation it guards is intact: 147 tests own scroll-edge-state, every one of them reaching it through src/daemon/scroll-runtime.ts rather than naming it. What is stale is which test is used as the example, so the fix moves the example rather than relaxing the assertion. src/daemon/__tests__/scroll-runtime.test.ts sits one import away from scroll-edge-state.ts and never mentions it, which is exactly the omission the assertion exists to catch; the kernel-errors half of the test is unchanged.

One file, +6/-6, no runtime code.

Validation

• Reproduced the failure at 5fb2860119 before touching anything: node --test scripts/mutation/ownership.test.ts → 4 pass, 1 fail (a kernel is owned by tests that reach it indirectly).
• At 5a8ba8e81e: node --test scripts/mutation/*.test.ts → 40 pass, 0 fail.
• pnpm check:affected --run green at this head, including mutation-model, gate-manifest, depgraph and tmpdir-leaks.
• Test-only change, so no runtime or device validation applies.

[github-actions]

Size Report

Metric	Base	Current	Diff
Installed (including dependencies)	4.57 MB	4.57 MB	0 B
Package (unpacked)	4.57 MB	4.57 MB	0 B
Package (download)	1.36 MB	1.36 MB	-5 B

Startup median (7 runs, lower is better):

Scenario	Base	Current	Diff
CLI --version	29.9 ms	29.7 ms	-0.2 ms
CLI --help	80.1 ms	83.5 ms	+3.4 ms

[thymikee]

Reviewed at 5a8ba8e. The change is correct: scroll-runtime.test.ts still reaches scroll-edge-state without naming it, so the assertion still proves indirect ownership.

This PR now conflicts with main. #2613 (208e3d3) already fixed the same assertion by moving the example to back-runtime.test.ts. Is this PR still needed? If main's fix is enough, it can be closed. If you prefer this example or the updated comment, rebase onto main and keep one of the two.

Smoke Tests fails in the live iOS scenario (the long-press element did not become visible after scrolling). This PR changes only scripts/mutation/ownership.test.ts, so that failure looks unrelated.

[thymikee]

Closed: main already moved the example (in #2613, onto src/daemon/__tests__/back-runtime.test.ts, which is likewise an indirect owner of scroll-edge-state), so there is nothing left here to land. Verified at 354d3516ec: node --test scripts/mutation/ownership.test.ts passes.