Frontend Job interface used snake_case (file_name, file_size, progress_pct,
step_label, provider_updates, result_csv_url, created_at) but backend
returns camelCase (fileName, fileSize, progressPct, stepLabel,
providerUpdates, resultCsvUrl, createdAt) — causing all fields to be
undefined and showing 'NaN MB', broken progress bar, empty labels.
Updated types/index.ts Job, ProviderUpdate, JobSummary interfaces and
JobProgressCard.tsx to use the correct camelCase field names.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>