Replace the local navigation extension with centralized helpers from krow_core: add krow_core dependency and imports, remove src/presentation/navigation/client_auth_navigator.dart and its export, and update Module routes to use ClientPaths constants. Update page callbacks to use Modular.to.toClientSignIn/toClientSignUp/toClientHome instead of the old push/navigate extension and replace hard-coded route strings with ClientPaths. This centralizes route definitions and removes duplicated navigation logic.
Reorganized and clarified dependency sections in multiple pubspec.yaml files, grouping architecture and feature packages. Updated import statements in AuthRepositoryImpl for direct usage of types. Added missing dependencies to client authentication. Removed obsolete documentation and summary files from design_system and client home packages.
Relocated all app directories (client, design_system_viewer, staff) and their contents under the new 'apps/mobile' path. This change improves project organization and prepares for future platform-specific structuring.
