Use short labels for team members

modules/ui_shared/include/ui/screens/team/team_page_event_effect_sink.h

@@ -55,8 +55,7 @@ class TeamPageEventEffectSink
         const TeamPageRuntimePort& runtime,
         const TeamPageKeyEventLog& key_log,
         ITeamPageEventDeferred& deferred,
-        ITeamPageEventNotifier& notifier,
-        const ITeamPageMemberNameResolver& names) const;
+        ITeamPageEventNotifier& notifier) const;
 };
 
 } // namespace ui

modules/ui_shared/include/ui/screens/team/team_page_event_reducer.h

@@ -36,18 +36,10 @@ struct TeamPageEventState
     std::vector<TeamMemberUi> members;
 };
 
-class ITeamPageMemberNameResolver
-{
-  public:
-    virtual ~ITeamPageMemberNameResolver() = default;
-    virtual std::string resolveMemberName(uint32_t node_id) const = 0;
-};
-
 struct TeamPageEventContext
 {
     uint32_t now_s = 0;
     uint32_t self_node_id = 0;
-    const ITeamPageMemberNameResolver* names = nullptr;
 };
 
 struct TeamPageEventEffects
@@ -143,7 +135,7 @@ class TeamPageEventReducer
     void applyPairingIdentity(TeamPageEventState& state,
                               const TeamPagePairingUpdate& update) const;
     bool isPairingActive(TeamPairingState state) const;
-    std::string resolveMemberName(uint32_t node_id) const;
+    std::string memberDisplayLabel(uint32_t node_id) const;
     void assignMemberColor(TeamMemberUi& member) const;
 
     TeamPageEventContext context_;

modules/ui_shared/include/ui/team_presentation/team_member_label.h

@@ -0,0 +1,23 @@
+#pragma once
+
+#include <cstdint>
+#include <cstdio>
+#include <string>
+
+namespace ui
+{
+namespace team_presentation
+{
+
+inline std::string shortTeamMemberLabel(uint32_t node_id)
+{
+    char label[5]{};
+    std::snprintf(label,
+                  sizeof(label),
+                  "%04lX",
+                  static_cast<unsigned long>(node_id & 0xFFFFU));
+    return std::string(label);
+}
+
+} // namespace team_presentation
+} // namespace ui