Release Notes - Version 2.2.3

🚀 New Features

Railway Oriented Programming (ROP): Adopted the ROP pattern across all core services and ViewModels (MainViewModel, ObservationViewModel, FluxViewModel, CalibrationViewModel) to ensure explicit and verifiable error handling.
Persistent Logging: Introduced ILoggerService and LoggerService to write logs to the logs/ directory, improving post-mortem analysis and debugging.
Global Exception Handling: Unhandled exceptions are now caught and logged via App.xaml.cs to prevent silent crashes.

Refactored MathService: Updated MathService to integrate IHemgFittingService via dependency injection, improving testability and modularity.
HEMG Stability: Enhanced HemgFittingService with better error trapping and logging.
Validation: Added IsValid checks to fitting results to ensure only valid curves are rendered on the plots.

Asynchronous File Operations: Converted BaselineFileService, FileHelper, and ObservationExcelHelper to use fully asynchronous patterns, preventing UI freezes during large file processing.
Progress Feedback: Updated status bars in UnifiedMainWindow to support indeterminate states for operations with unknown duration.

Kalman Filter: Fixed naming conventions and initialization logic in MathService.KalmanFilter.
Plotting: Resolved issues where invalid fitting curves could cause rendering artifacts.
UI State: Fixed ProgressBar ranges and indeterminate states to correctly reflect background activity.

Modern Syntax: Refactored code to use C# collection expressions ([...]) for cleaner and more readable code.
Thread Safety: Updated LoggerService to use modern thread-locking mechanisms.
Dependency Injection: Registered IHemgFittingService and ILoggerService in the global DI container.