Frontend · File verification UI] Write file verification UI tests

[amina69]

Epic: File verification UI
Labels: test, phase-2, frontend
Size: M (~2-3 days)

Description

Tests for all file verification components.

Tasks

• FileUploadZone: drop accepted, wrong type rejected, over limit rejected, keyboard activation
• FileUploadZone per-file: progress bar width, error state, remove callback
• DocumentIntegrityBadge: unverified, verified (StellarTxLink), failed states
• DocumentExpiryBadge: amber at 7d, red when expired, null shows nothing
• DocumentRow: all badges rendered, delete shown for owner only
• DocumentList: verify called per doc, empty state, skeleton loader
• AdminDocumentReviewPanel: hidden for non-admin, progress badge updates