Two store-comments refinement tests located the auto-created refinement task by
`title.includes("Refinement")`, but FN-7165 (34efa8b89) intentionally changed
refinement titles to `${sourceId}: ${feedback}` for traceability. The refinement
task is still created correctly (the length assertion passes); only the
identifying substring was stale, so the tests failed on `expect(refinement)
.toBeDefined()`. Match the refinement by its feedback-derived title instead.
No product behavior change.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>