Retry notification menu waits across list refreshes

[labkey-jeckels]

Rationale

Fix intermittent Sample Manager test failures where the notifications dropdown re-renders while a test is reading it. Each notification refresh briefly replaces the listing with a loading spinner, so waits and clicks that hold an element reference fail with stale or missing elements. This hit 14 of 1,055 Sample Manager shard builds since 2026-09-01, across 10 branches including develop. Examples on develop: StaleElementReferenceException and NoSuchElementException.

Related Pull Requests

• None

Changes

• Waiting for the notification list now re-finds the list on every poll and treats a refresh in progress as "not yet", with a longer timeout.
• Clicking a notification's view link retries if the list is refreshing.

[labkey-danield]

Changes to shared test components does not automatically kick off tests for the apps.
Those need to be kicked off manually and validated.

[labkey-jeckels]

Verification runs on this branch for the two tests that failed on develop:

• SMProAsyncImportAndNotificationTest (Sample Manager [D] postgres): passed, 1 run (build)
• SMCrossTypeSampleFileImportTest (Sample Manager Starter postgres): passed, 5 runs across the parallel batches (build)

The failure rate was roughly 1 in 75 builds, so these runs show the fix doesn't break the tests but can't prove the race is gone.

[labkey-jeckels]

Changes to shared test components does not automatically kick off tests for the apps. Those need to be kicked off manually and validated.

See separate followup comment - I just ran individual tests where I had seen failures instead of the full suite. I can run full suites if you think it's worth it.