Introduced a new `NetworkService` for posting account and device data efficiently. Improved the transaction UI with styled tables and added lazy content loading. Changed screenshot handling to return JPEG data directly, and restructured device processing for better error handling and data integration.
Added AccountWindow to display account tables linked to devices and TransactionWindow for viewing account details. Enhanced DeviceDAO and AccountDAO to support additional filtering and data retrieval functionalities.
Introduced a navigation menu with actions "Окно 1" and "Окно 2" in `MainWindow`. Cleaned up commented-out code and adjusted formatting in `main.cpp` for clarity.
Updated include paths for consistent structure under the `db` directory. Added `AccountInfoScreener` for parsing card data using Tesseract OCR and enhanced related models. Removed unused code and simplified main workflow.
