feat(cli,core): implement interactive Team Creator Wizard and persistence

- Add interactive 5-step TeamCreatorWizard with agent selection and objective editor
- Implement /team slash command for team selection and creation
- Add colorized Nerd Font logos and scroll support for agent roster selection
- Refactor teamScaffolder to generate standalone .md files for all agents
- Implement persistent activeTeam setting in workspace configuration
- Add ActiveTeamChanged event to force immediate system instruction refresh
- Support external editor (Ctrl+X) for team objective instructions
- Enhance keyboard navigation with Tab/Shift+Tab field switching in wizard
- Fix team selection logic to correctly pivot to creation wizard
- Update various UI components and tests for team state management

packages/cli/src/ui/components/StatusRow.tsx

@@ -159,7 +159,10 @@ const PROVIDER_COLORS: Record<string, string> = {
  */
 const ActiveTeamIndicator: React.FC = () => {
   const config = useConfig();
-  const activeTeam = config?.getActiveTeam();
+  const activeTeam =
+    typeof config?.getActiveTeam === 'function'
+      ? config.getActiveTeam()
+      : undefined;
 
   if (!activeTeam) return null;