Thanks for sharing the updated file, Looking at the mongo-model.json which you have provided, it has same value (report) to name parameter in both the schemas. Instead provide different schema names.
I have attached updated mongo-model.json file, use this mongo-model.json file and create the metadata using workflow.
mongo-model.zip (480 Bytes)
You can refer below blog for creating metadata using workflow.
Helical Insight Team