- New csv-import wizard step with file upload, auto column detection, column mapping UI, split-debit/credit support, and 5-row preview
- Imports transactions and auto-calculates account balance from CSV data
- Uses pendingImportedTransactions state (not side-channel) to reliably pass transactions through to saveUserData
- handleSetupComplete reloads from server so imported transactions appear in the UI immediately after wizard completes
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
nmemmertandClaude Sonnet 4.6
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