* fix: catch duplicate SIE import early with clear error message
- Add duplicate check in execute route before doing any work (defense in depth)
- Handle duplicate error from execute route in frontend
- Show "Filen har redan importerats" heading instead of generic "Kunde inte läsa filen"
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* fix: catch duplicate SIE import early and batch account creation for performance
- Add duplicate check in execute route before doing any work (defense in depth)
- Handle duplicate error from execute route in frontend with clear Swedish message
- Replace sequential ensureAccountExists loop (50-100 DB round trips) with single
batch SELECT + batch INSERT — reduces import time from 3+ min to seconds
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* fix: update mappings optimistically after creating missing accounts
Previously re-parsed the SIE file after account creation, which could fail
with a 409 duplicate error (leaving the "create accounts" card stuck).
Now optimistically marks created accounts as self-mapped and updates the
preview stats immediately.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* fix: address Greptile P2 feedback — error handling and typed errorType prop
- Check batch insert error in executeSIEImport account creation safety net
- Replace brittle string-match error detection with typed errorType prop
- Remove stale file dependency from handleCreateAccounts useCallback
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
