Integrates optional AI/OCR (AIFotoONLUS.Core) support to extract numbers from images after processing. Adds new "AI" tab in the UI for enabling extraction, selecting models folder, specifying CSV output, and previewing results. Results can be exported to CSV. Uses reflection for AI library invocation, with fallback simulation if unavailable. Persists new AI settings. Updates related NuGet packages and adds theme resources.
Introduced MainWindow.xaml and code-behind for a modern WPF interface with tabbed settings. Enabled WPF in project file. Refactored startup to launch WPF or WinForms UI based on availability. Registered WPF MainWindow in DI. Improved DataModel cancellation to be synchronous and log exceptions. Minor logging and comment updates. App now supports both WPF and WinForms frontends.
