add nickname to group member payloads

server/im_http_test.go

@@ -4144,7 +4144,7 @@ func TestServeIMGroupMembers(t *testing.T) {
 		ModeWant:     types.ModeCPublic,
 		ModeGiven:    types.ModeCPublic,
 		Nickname:     "群里小王",
-		Public:       map[string]any{"display_name": "Alice", "avatar_file_id": "alice.jpg"},
+		Public:       map[string]any{"display_name": "Alice", "nickname": "Alice原名", "avatar_file_id": "alice.jpg"},
 		MemberStatus: types.GroupMemberStatusActive,
 	}}
 
@@ -4160,6 +4160,7 @@ func TestServeIMGroupMembers(t *testing.T) {
 	data := decodeIMHTTPResponse(t, rec).Data.(map[string]any)
 	items := data["items"].([]any)
 	if len(items) != 1 || items[0].(map[string]any)["display_name"] != "老王" ||
+		items[0].(map[string]any)["nickname"] != "Alice原名" ||
 		items[0].(map[string]any)["group_nickname"] != "群里小王" ||
 		items[0].(map[string]any)["avatar_file_id"] != "alice.jpg" ||
 		items[0].(map[string]any)["mentionable"] != true {