- Added GraphQL sample queries and mutations for host and user rights endpoints in the 'docs' directory.
- Implemented unit tests for all remaining GraphQL endpoints, including hosts, devices, host groups, locations, and user permissions.
- Created dedicated integration tests for host and user rights workflows, utilizing the new sample files.
- Fixed a bug in 'HostImporter.getHostGroupHierarchyNames' to correctly process and sort nested host group hierarchies.
- Refined Zabbix API mocking in tests to improve reliability and support path-based routing.
- Verified all 38 tests across 11 suites pass successfully.
