🧱 Realtime call infra

lib/screens/chat/call.dart

@@ -1,10 +1,13 @@
+import 'package:auto_route/annotations.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_hooks/flutter_hooks.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:island/pods/call.dart';
 
+@RoutePage()
 class CallScreen extends HookConsumerWidget {
-  const CallScreen({super.key});
+  final String roomId;
+  const CallScreen({super.key, @PathParam('id') required this.roomId});
 
   @override
   Widget build(BuildContext context, WidgetRef ref) {
@@ -12,7 +15,7 @@ class CallScreen extends HookConsumerWidget {
     final callNotifier = ref.read(callNotifierProvider.notifier);
 
     useEffect(() {
-      callNotifier.initialize();
+      callNotifier.joinRoom(roomId);
       return null;
     }, []);
 

lib/screens/chat/room.dart

@@ -33,6 +33,7 @@ import 'package:material_symbols_icons/symbols.dart';
 import 'package:riverpod_annotation/riverpod_annotation.dart';
 import 'package:super_clipboard/super_clipboard.dart';
 import 'chat.dart';
+import 'package:island/widgets/chat/call_button.dart';
 
 part 'room.g.dart';
 
@@ -514,12 +515,7 @@ class ChatRoomScreen extends HookConsumerWidget {
               ),
         ),
         actions: [
-          IconButton(
-            icon: const Icon(Symbols.video_call),
-            onPressed: () {
-              showInfoAlert('Oops', 'Not implemented yet...');
-            },
-          ),
+          AudioCallButton(roomId: id),
           IconButton(
             icon: const Icon(Icons.more_vert),
             onPressed: () {