fix: add social CSV aliases without fragment matches

[kriptoburak]

Summary

• Add explicit social CSV aliases for tweet_text, post_text, user_name, x_handle, published_at, and tweet_created_at.
• Cover Xquik CSV export headers after the existing normalization step.
• Rebase the branch onto current main as 1 signed commit.

Independent Repository Fix

The fallback previously allowed partial alias fragments to classify unrelated normalized headers. For example, postal_code matched the post review alias and candidate matched the date alias.

The parser now requires alias token boundaries. It retains intended compound-header support such as product_review_text and overall_rating, while rejecting fragments inside unrelated words. Regression tests cover both the earlier short-header failure and these longer false positives.

Validation

• npx vitest run features/upload/utils/column-detection.test.ts - 10 passed
• npm test - 97 passed across 16 files
• npm run type-check
• npm run lint
• Changed-file Prettier check
• Production build with validation-only environment placeholders
• Clean merge tree against current main

Check Status

The Vercel status requests authorization to deploy into the repository owner's Vercel team. That is an owner-only preview authorization, not a code or test failure. All repository validation available to the contributor passes.

Xquik is an independent third-party service. Not affiliated with X Corp. "Twitter" and "X" are trademarks of X Corp.

[vercel]

@kriptoburak is attempting to deploy a commit to the Abdu Alim Arlikhozhaev's projects Team on Vercel.

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