* fix: support Nordea Datum CSV variant and add bank sync loading screen
Add 4th Nordea Business CSV format variant that uses standalone "Datum"
column header and YYYY/MM/DD date format. Also replace fire-and-forget
bank sync with an awaited flow showing a loading screen after first
bank connection, preventing users from navigating away before sync
completes.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* fix: address PR review feedback — cleanup timeout, deps, naming
- Clear success setTimeout on unmount via useRef to prevent stale updates
- Add isSyncing to useEffect dependency array for Strict Mode safety
- Rename headers_detect to headersDetect (camelCase consistency)
- Remove redundant toLowerCase() since firstLine is already lowercased
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Jakob Wennberg
20818e3283