Add Debug page and fix BLE communication issues

Major changes:
- Added Debug tab with real-time message logging and hex viewer
- Implemented timed data logging ($UMTDL command) per API v1.3
- Fixed BLE message parsing to handle notifications without line endings
- Added Schema 2 support (22-field timed logging packets)
- Updated Maglink BLE UUIDs (fff0/fff1/fff2)
- Added connection timeout (10s) to prevent hanging on unavailable devices
- Added connection status display and manual push-button logging trigger
- Improved retry logging with attempt numbers and delays
- Added console window allocation for Windows debug output
- Added BLE disconnect on app close

Bug fixes:
- Fixed device name filtering for Maglink (ML-* prefix)
- Fixed RtkGps enum reference in DeviceScanViewModel
- Fixed DebugMessage namespace (moved to Models)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

FieldLogger/MauiProgram.cs

@@ -42,6 +42,7 @@ public static class MauiProgram
 		builder.Services.AddSingleton<HomeViewModel>();
 		builder.Services.AddSingleton<JobsViewModel>();
 		builder.Services.AddSingleton<MapViewModel>();
+		builder.Services.AddSingleton<DebugViewModel>();
 		builder.Services.AddSingleton<SettingsViewModel>();
 		builder.Services.AddTransient<DeviceScanViewModel>();
 		builder.Services.AddTransient<JobDetailViewModel>();
@@ -50,6 +51,7 @@ public static class MauiProgram
 		builder.Services.AddSingleton<HomePage>();
 		builder.Services.AddSingleton<JobsPage>();
 		builder.Services.AddSingleton<MapPage>();
+		builder.Services.AddSingleton<DebugPage>();
 		builder.Services.AddSingleton<SettingsPage>();
 		builder.Services.AddTransient<DeviceScanPage>();
 		builder.Services.AddTransient<JobDetailPage>();