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/hooks/useFocus.test.tsx

@@ -34,9 +34,11 @@ describe('useFocus', () => {
       pause: vi.fn(),
     });
     stdout = { write: vi.fn() };
-    mockedUseStdin.mockReturnValue({ stdin } as unknown as ReturnType<
-      typeof useStdin
-    >);
+    mockedUseStdin.mockReturnValue({
+      stdin,
+      setRawMode: vi.fn(),
+      isRawModeSupported: true,
+    } as unknown as ReturnType<typeof useStdin>);
     mockedUseStdout.mockReturnValue({ stdout } as unknown as ReturnType<
       typeof useStdout
     >);