Summary

Fixes a flaky test in stackTrace.spec.tsx — the test shows URL link in tooltip when absPath is an http URL was failing intermittently (5 occurrences in 30 days).

Root cause: The test uses jest.useFakeTimers() to advance past the tooltip's 1000ms open delay. After act(() => jest.advanceTimersByTime(2000)), the tooltip content (including an <a> link) should be in the DOM. However, findByRole('link', ...) internally uses waitFor which polls via setTimeout — and with fake timers still active, these polling timeouts don't fire reliably, causing the query to intermittently time out.

Fix: Move jest.useRealTimers() before the findByRole assertion instead of after it. This ensures:

1. Fake timers advance past the tooltip delay, opening the tooltip
2. Real timers are restored so findByRole's internal polling mechanism works correctly
3. The tooltip remains visible since no pointerleave event has been triggered

This matches the pattern used by similar passing tests in the same file that use findByText (which succeeds on its first synchronous check, avoiding the polling issue).

Test plan

• Verified all 29 tests in stackTrace.spec.tsx pass
• Pre-commit hooks pass on changed file

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