Organizations merge on conflict during enrichment hotfix

[yeganathan18]

Changes proposed ✍️

What

🤖 Generated by Copilot at 110d257

Improved organization enrichment service by removing duplicate organizations and fixing variable declaration. Modified backend/src/services/premium/enrichment/organizationEnrichmentService.ts.
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🤖 Generated by Copilot at 110d257

unmergedOrgs now
let, no duplicates by site
enrichment in spring

Why

How

🤖 Generated by Copilot at 110d257

• Remove duplicate organizations based on website in organization enrichment service (link, link)

• Change unmergedOrgs from const to let to allow reassignment (link)
• Add code to iterate over unmergedOrgs and collect and filter out duplicates (link)
• Log the removed duplicate organizations for debugging purposes (link)

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.