Describe Your Changes

This pull request introduces a new feature to filter repository lists by tags in the Models and ModelSourceService classes. The most important changes include updating method signatures, modifying the repository list retrieval logic, and restructuring data storage.

Enhancements to Repository List Filtering:

• engine/controllers/models.cc: Updated the GetRepositoryList method to include an optional tag parameter and adjusted the call to model_src_svc_->GetRepositoryList to pass the tag if provided.
• engine/controllers/models.h: Modified the GetRepositoryList method declaration and the corresponding ADD_METHOD_TO macro to include the new tag parameter. [1] [2]

Modifications to Data Handling and Storage:

• engine/services/model_source_service.cc: Updated the GetRepositoryList method to filter repositories by tags if a tag filter is provided. This involved adding logic to check for and apply the tag filter while retrieving the repository list.
• engine/services/model_source_service.h: Introduced the ModelInfo struct to store detailed repository information, including tags. Updated the cortexso_repos_ map to use ModelInfo instead of a simple string vector. [1] [2]

These changes improve the functionality of the repository list retrieval by allowing users to filter results based on tags, enhancing the overall usability of the service.

Fixes Issues

• idea: cortex should allow to filter repository list by tag for cortexso hub #2020

Self Checklist

• Added relevant comments, esp in complex areas
• Updated docs (for bug fixes / features)
• Created issues for follow-up changes or refactoring needed