This commit extracts the Kijiji scraping functionality into a reusable function `fetchKijijiItems`. This allows for easier integration into other parts of the application and improves code modularity. The function accepts search query, requests per second, and base URL as parameters, enabling customizable scraping.
Introduces types, utilities, and a dedicated HTTP client for improved structure and maintainability. Includes rate limit handling, retry logic, and error handling.
