feat(notification): enhance chat notification routing with flexible field handling

Support both 'chat_message' and 'chat' notification types with flexible field name handling (snake_case and camelCase variants). Add groupId and groupName parameters for group chats, and fall back to notifications screen when conversationId is missing.

app/_layout.tsx

@@ -155,13 +155,28 @@ function NotificationBootstrap() {
         const extras = message.extras || {};
         const notifType = extras.notification_type || message.notificationType;
 
-        if (notifType === 'chat_message' && extras.conversation_id) {
-          const isGroup = extras.conversation_type === 'group';
-          router.push(
-            `/chat/${encodeURIComponent(extras.conversation_id)}${
-              isGroup ? '?isGroupChat=1' : extras.sender_id ? `?userId=${encodeURIComponent(extras.sender_id)}` : ''
-            }`
-          );
+        if (notifType === 'chat_message' || notifType === 'chat') {
+          const conversationId = extras.conversation_id || extras.conversationId;
+          const senderId = extras.sender_id || extras.senderId;
+          const conversationType = extras.conversation_type || extras.conversationType;
+          const groupId = extras.group_id || extras.groupId;
+          const groupName = extras.group_name || extras.groupName;
+
+          if (conversationId) {
+            const isGroup = conversationType === 'group';
+            const q = new URLSearchParams();
+            if (isGroup) {
+              q.set('isGroupChat', '1');
+              if (groupId) q.set('groupId', groupId);
+              if (groupName) q.set('groupName', groupName);
+            } else if (senderId) {
+              q.set('userId', senderId);
+            }
+            const qs = q.toString();
+            router.push(`/chat/${encodeURIComponent(conversationId)}${qs ? `?${qs}` : ''}`);
+          } else {
+            router.push('/messages/notifications');
+          }
         } else {
           router.push('/messages/notifications');
         }

src/screens/message/components/ChatScreen/ChatHeader.tsx

@@ -56,6 +56,7 @@ export const ChatHeader: React.FC<ChatHeaderProps> = ({
       headerName: {
         ...baseStyles.headerName,
         fontSize: isWideScreen ? 19 : 17,
+        maxWidth: isWideScreen ? 190 : 170,
       },
       memberCount: {
         ...baseStyles.memberCount,