Initial commit: FieldLogger MAUI app with Maglink BLE support

Added Maglink RTK GNSS receiver integration with correct BLE UUIDs and device name filtering (ML-* prefix).

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

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

FieldLogger/MauiProgram.cs

@@ -0,0 +1,64 @@
+using FieldLogger.Services;
+using FieldLogger.Services.Ble;
+using FieldLogger.Services.Data;
+using FieldLogger.Services.Sync;
+using FieldLogger.ViewModels;
+using FieldLogger.Views;
+using Microsoft.Extensions.Logging;
+
+namespace FieldLogger;
+
+public static class MauiProgram
+{
+	public static MauiApp CreateMauiApp()
+	{
+		var builder = MauiApp.CreateBuilder();
+		builder
+			.UseMauiApp<App>()
+#if !WINDOWS
+			.UseMauiMaps()
+#endif
+			.ConfigureFonts(fonts =>
+			{
+				fonts.AddFont("OpenSans-Regular.ttf", "OpenSansRegular");
+				fonts.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold");
+			});
+
+#if DEBUG
+		builder.Logging.AddDebug();
+#endif
+
+		// Core services
+		builder.Services.AddSingleton<SettingsService>();
+		builder.Services.AddSingleton<AppDatabase>();
+		builder.Services.AddSingleton<BleScanner>();
+		builder.Services.AddSingleton<UmReceiverService>();
+		builder.Services.AddSingleton<MaglinkService>();
+		builder.Services.AddSingleton<DeviceConnectionManager>();
+		builder.Services.AddSingleton<PointLogger>();
+		builder.Services.AddSingleton<IMqttSyncService, NullMqttSyncService>();
+
+		// View models
+		builder.Services.AddSingleton<HomeViewModel>();
+		builder.Services.AddSingleton<JobsViewModel>();
+		builder.Services.AddSingleton<MapViewModel>();
+		builder.Services.AddSingleton<SettingsViewModel>();
+		builder.Services.AddTransient<DeviceScanViewModel>();
+		builder.Services.AddTransient<JobDetailViewModel>();
+
+		// Pages
+		builder.Services.AddSingleton<HomePage>();
+		builder.Services.AddSingleton<JobsPage>();
+		builder.Services.AddSingleton<MapPage>();
+		builder.Services.AddSingleton<SettingsPage>();
+		builder.Services.AddTransient<DeviceScanPage>();
+		builder.Services.AddTransient<JobDetailPage>();
+
+		var app = builder.Build();
+
+		// Instantiate the point logger so it listens for receiver packets from startup.
+		_ = app.Services.GetRequiredService<PointLogger>();
+
+		return app;
+	}
+}