- Updated address retrieval in user service to replace billing info with a dedicated address method.
- Adjusted API endpoints to use `PATCH /api/me/address` for address updates instead of billing updates.
- Enhanced documentation to reflect changes in address management processes and API usage.
- Removed deprecated types and services related to billing address handling, streamlining the codebase.
- Introduced new TypeScript types for catalog products, including Internet, SIM, and VPN plans, along with their respective addons and installation options.
- Created a new domain package with essential configurations, including package.json and tsconfig.json for TypeScript support.
- Added common types and utility functions for type safety and data handling across the application.
- Established a structured export pattern for domain types, enhancing organization and accessibility for future development.
