Complete v2.0 ultra-lightweight rebuild with premium color themes

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

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

lib/gps_service.dart

@@ -0,0 +1,36 @@
+import 'dart:async';
+import 'package:geolocator/geolocator.dart';
+import 'package:permission_handler/permission_handler.dart';
+
+class GpsService {
+  static Stream<Position> get positionStream {
+    return Geolocator.getPositionStream(
+      locationSettings: const LocationSettings(
+        accuracy: LocationAccuracy.bestForNavigation,
+        distanceFilter: 1,
+      ),
+    );
+  }
+  
+  static Future<bool> requestPermissions() async {
+    final permission = await Permission.locationWhenInUse.request();
+    return permission.isGranted;
+  }
+  
+  static Future<bool> isLocationServiceEnabled() async {
+    return await Geolocator.isLocationServiceEnabled();
+  }
+  
+  static String getCompassDirection(double heading) {
+    if (heading < 0) return 'N/A';
+    
+    const directions = ['N', 'NE', 'E', 'SE', 'S', 'SW', 'W', 'NW'];
+    final index = ((heading + 22.5) / 45).floor() % 8;
+    return directions[index];
+  }
+  
+  static String formatHeading(double heading) {
+    if (heading < 0) return 'N/A';
+    return '${getCompassDirection(heading)} ${heading.round()}°';
+  }
+}