chore: updated reference design to app changes and fixes

docs/design/screens/activity.md

@@ -105,8 +105,21 @@ Event names are present tense, as the backend emits them: role.create, role.edit
 | role.delete | Role Intern deleted | Failed to delete the role Intern |
 | role.reassign | Moved 3 members from Intern to Writer (one member: Moved 1 member from Intern to Writer) | Failed to move 3 members from Intern to Writer |
 | user.change_role | Ines Duarte's role changed from Writer to Content lead | Failed to change the role of Ines Duarte |
+| user.remove | Removed Ines Duarte | Failed to remove Ines Duarte |
 | user.transfer_ownership | Ownership transferred from Marta Alves to Jonas Weber | Failed to transfer ownership to Jonas Weber |
 
 Failed template: "Failed to {verb} {object}". A failed row shows the Failed badge after the sentence; the details panel shows "Why it failed" with the reason from the API.
 
 Category filter values: Articles, Media, Users and invites (was "Users & invites"), Roles (new), API keys, Authentication, System. French and the failed sentences for every event are in screens/roles.md, group 8 and the table "Activity events: failed sentences, EN and FR". Frames: Roles board, group "8 Activity".
+
+
+### Fallback wordings (app sync)
+| Event | Condition | Sentence |
+|---|---|---|
+| role.reassign | target role unknown | Moved 3 members from Intern to another role |
+| role.reassign | count unknown | Moved the members of the role Intern |
+| role.reassign | failed, count unknown | Failed to move the members of the role Intern |
+| role.reassign | failed, one member | Failed to move 1 member |
+| user.remove | name unknown | Removed a user (proposal, not in the app) |
+
+Event names match the backend: role.create, role.edit, role.delete, role.reassign, user.change_role, user.transfer_ownership, user.remove.