This endpoint retrieves repository items based on their IDs. It expects a list of repository item IDs (repos) in the request body. The method first checks the user's permissions to ensure proper authorization. It then retrieves the list of repository file metadata. The response contains a JSON array of repository file metadata representing the requested items. The request body is a JSON array of repositoryFileMetaDataID values, e.g. ["665f1c2ab77e4a3d9c0e8b12"].