Use exact match when searching for segments by parent slug

[sausage-todd]

Changes proposed ✍️

What

🤖 Generated by Copilot at b544d41

Improved segment filtering by parent and grandparent slug in segmentRepository.ts. Changed the query operator from ilike to = for more accuracy.
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🤖 Generated by Copilot at b544d41

No more fuzzy matches, only exactness
We search for segments with precision
parentSlug and grandparentSlug must be equal
Or we reject them with our metal sequel

Why

How

🤖 Generated by Copilot at b544d41

• Replace ilike operator with = operator in searchQuery string to make segment filtering more strict and avoid false positives or duplicates (link, link). This affects the parentSlug and grandparentSlug filters in the segmentRepository.ts file.

Checklist ✅

• Label appropriately with Feature, Improvement, or Bug.
• Add screehshots 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.