Once entities expose an origin home domain, users need to see at a glance which people/messages come from another server.

What to do

• Show the home domain (e.g. @b.example) next to remote usernames in the member list, message author line, and member popout/profile.
• Add a subtle 'federated' badge/icon on remote avatars.
• Make the remote profile popout read-only where local-only actions don't apply (e.g. role assignment that the local server can't perform on a remote user).

Acceptance

• A remote user is visually distinguishable from a local one in member list, chat, and profile views.
• Local users render exactly as before (no badge, no domain suffix).

Depends on

• Qualified-ID/origin modelling.

Client touch points

• lib/features/member/views/accord_member_list.dart, accord_member_avatar.dart, accord_member_popout.dart, lib/features/member/utils/member_display.dart.

Server reference — accordserver branch claude/federated-servers-xlydlj.