feat(tactical-app): full sovereign military suite in Flutter with first-run onboarding, artillery ballistics, HLZ assessment, minefield breach, isochrone, symbols, and overlays

packages/tactical_app/lib/widgets/active_navigation_hud.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import '../models/angle_unit.dart';
 import '../models/navigation_state.dart';
 
 class ActiveNavigationTopBanner extends StatelessWidget {
@@ -192,3 +193,27 @@ class ActiveNavigationBottomHUD extends StatelessWidget {
     );
   }
 }
+
+/// Unified Active Navigation HUD Container
+class ActiveNavigationHud extends StatelessWidget {
+  final ActiveNavigationState state;
+  final AngleUnit angleUnit;
+  final VoidCallback onStopNavigation;
+
+  const ActiveNavigationHud({
+    super.key,
+    required this.state,
+    required this.angleUnit,
+    required this.onStopNavigation,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Stack(
+      children: [
+        ActiveNavigationTopBanner(navState: state),
+        ActiveNavigationBottomHUD(navState: state, onStopNavigation: onStopNavigation),
+      ],
+    );
+  }
+}