feat(notifications): added navigation from different types of notifications

lib/features/bottom_navigation_bar/presentation/widgets/bottom_nav_scope.dart

@@ -0,0 +1,38 @@
+import 'package:flutter/material.dart';
+
+class BottomNavController {
+  BottomNavController();
+
+  void Function(String path, Object? extra)? _onSwitchToRoute;
+
+  void register(void Function(String path, Object? extra) callback) {
+    _onSwitchToRoute = callback;
+  }
+
+  void switchToRoute(String path, [Object? extra]) {
+    _onSwitchToRoute?.call(path, extra);
+  }
+}
+
+class BottomNavScope extends InheritedWidget {
+  const BottomNavScope({
+    required this.controller,
+    required super.child,
+    super.key,
+  });
+
+  final BottomNavController controller;
+
+  static BottomNavController? maybeOf(BuildContext context) {
+    return context.dependOnInheritedWidgetOfExactType<BottomNavScope>()?.controller;
+  }
+
+  static BottomNavController of(BuildContext context) {
+    final controller = maybeOf(context);
+    assert(controller != null, 'No BottomNavScope found in context');
+    return controller!;
+  }
+
+  @override
+  bool updateShouldNotify(BottomNavScope oldWidget) => controller != oldWidget.controller;
+}

lib/features/bottom_navigation_bar/presentation/widgets/bottom_navigation_bar_widget.dart

@@ -8,6 +8,7 @@ import 'package:eatvio_app/features/notifications/presentation/notifications_cub
 import 'package:eatvio_app/features/notifications/presentation/notifications_cubit/notifications_state.dart';
 import 'package:eatvio_app/features/bottom_navigation_bar/presentation/bloc/profile_avatar_cubit/profile_avatar_cubit.dart';
 import 'package:eatvio_app/features/bottom_navigation_bar/presentation/bloc/profile_avatar_cubit/profile_avatar_state.dart';
+import 'package:eatvio_app/features/bottom_navigation_bar/presentation/widgets/bottom_nav_scope.dart';
 import 'package:eatvio_app/features/chat/presentation/bloc/chats_cubit/chats_cubit.dart';
 import 'package:eatvio_app/features/chat/presentation/bloc/chats_cubit/chats_state.dart';
 import 'package:eatvio_app/generated/l10n.dart';
@@ -66,6 +67,24 @@ class _BottomNavigationBarWidgetState extends State<BottomNavigationBarWidget> {
     }
   }
 
+  /// Switch to the tab that corresponds to [path], optionally with [extra]
+  /// (e.g. date for diary). If [path] is not in the current tab list, falls back to push.
+  void _switchToRoute(String path, [Object? extra]) {
+    if (pages == null) return;
+    final index = pages!.indexOf(path);
+    if (index >= 0 && index != currentBottomNavBarIndex) {
+      setState(() {
+        currentBottomNavBarIndex = index;
+      });
+      GoRouter.of(context).replace(path, extra: extra);
+    } else if (index >= 0) {
+      // Same tab but with new extra (e.g. diary with date)
+      GoRouter.of(context).replace(path, extra: extra);
+    } else {
+      GoRouter.of(context).push(path, extra: extra);
+    }
+  }
+
   static const Color _devAccentColor = Color(0xFFF59E0B); // amber-500
 
   Widget _buildLogoIcon() {
@@ -121,6 +140,12 @@ class _BottomNavigationBarWidgetState extends State<BottomNavigationBarWidget> {
           // Инициализируем pages на основе profileModel
           pages ??= _getPages(isConsultant);
 
+          // Expose tab switching to descendants (e.g. notification widget)
+          final controller = BottomNavScope.maybeOf(context);
+          if (controller != null) {
+            controller.register(_switchToRoute);
+          }
+
           return Scaffold(
             body: widget.child,
             bottomNavigationBar: BottomNavigationBar(