feat(client): implement Angular HTTP client for API interactions
- Added client generation code to handle API requests using Angular's HttpClient.
- Introduced utility functions for building URLs, merging configurations, and handling headers.
- Implemented request and response interceptors for enhanced request handling.
- Created types for request options, response styles, and client configuration.
- Developed authentication handling with support for various auth schemes.
- Added body and query parameter serialization utilities for request formatting.
- Established a flexible configuration system for client initialization and request customization.