Fix red develop ad0f8f1ee3f5

The merge lane found `develop` red at `ad0f8f1ee3f5f0ba1a61e8633b6d8b556d428100` on its own: no queued PR merges until it is fixed. Failing (tests and gate stages): - `tests/test_nodelink_share.py::test_one_call_creates_sets_storage_attaches_every_node_that_mounts_requests_provisioning_and_audits` - `api-unit-dc-test` The whole gate log: artifact `8096` on lane task 8855. Make `develop` pass its full gate again. Open a PR as usual: the merge lane merges a PR that fixes some of these and adds no failure even while `develop` is red.

Fixed the red develop. The NodeLink share test still expected a Mac to be attached, but #6576 took NodeLink off macOS; it now expects the Mac skipped. Changed-area tests (176) and the quick gate pass. PR #6577 is queued in the merge lane. Memory: none applied.