Description: Currently, HelloID Service Automation supports only a single-level category structure for organizing services. To enhance scalability and improve the user experience, we propose the implementation of a two-level (nested) category system. This would allow administrators to define subcategories within a main category, enabling more granular classification of services. Example Use Case: Main Category: Application Subcategories: Location, Functionality, Sub-Organization This structure would allow end users to more easily navigate and locate services relevant to their context, especially in environments with a large number of services. Requested Functionality: Ability to define subcategories within existing categories. UI enhancements to display nested categories clearly (e.g., expandable lists or dropdowns). Filtering and search capabilities that respect both category levels. API support for managing and retrieving nested categories. Benefits: Improved service discoverability for end users. Better organization and scalability for large service catalogs. Enhanced flexibility for administrators managing complex service structures.