Similarity fix

[joanreyero]

Changes proposed ✍️

What

🤖[deprecated] Generated by Copilot at a7b0fcf

Added a new sorting criterion to the mergeMembers query in memberRepository.ts to improve the detection of duplicate members. The query now prefers members with a non-null similarity score over those with a null score. ​

🤖[deprecated] Generated by Copilot at a7b0fcf

mergeMembers seeks duplicates with similarity nulls fall behind

Why

How

🤖[deprecated] Generated by Copilot at a7b0fcf

• Prioritize members with similarity score for merging (link)

Checklist ✅

• [ ] Label appropriately with Feature, Improvement, or Bug.
• [ ] Add screenshots to the PR description for relevant FE changes
• [ ] New backend functionality has been unit-tested.
• [ ] API documentation has been updated (if necessary) (see docs on API documentation).
• [ ] Quality standards are met.