Add pricing entry flow and platform admin foundations

lib/core/location/location_access_service.dart

@@ -0,0 +1,30 @@
+import 'package:geolocator/geolocator.dart';
+
+class LocationAccessService {
+  LocationAccessService._();
+
+  static Future<Position> getCurrentPosition() async {
+    final enabled = await Geolocator.isLocationServiceEnabled();
+    if (!enabled) {
+      throw Exception(
+          'Konum servisleri kapalı. Lütfen cihaz ayarlarından açın.');
+    }
+
+    var permission = await Geolocator.checkPermission();
+    if (permission == LocationPermission.denied) {
+      permission = await Geolocator.requestPermission();
+    }
+
+    if (permission == LocationPermission.denied) {
+      throw Exception('Konum izni verilmedi.');
+    }
+
+    if (permission == LocationPermission.deniedForever) {
+      throw Exception(
+        'Konum izni kalıcı olarak reddedildi. Lütfen cihaz ayarlarından izin verin.',
+      );
+    }
+
+    return Geolocator.getCurrentPosition();
+  }
+}