GitHub Copilot 7e5ed585f7 feat: add testing infrastructure and improve component feedback ...

- Added React testing setup with JSDOM
- Added component tests for AddTransactionForm and TransactionTable
- Improved error handling and success messages in components
- Updated test configuration and dependencies
- Added CSS for error and success states

2025-05-05 17:41:39 +00:00

318 KiB

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