Joseph
Should mark _source as unknown, possibly all Schema properties as well. Maybe provides better typing for `DocumentCollection#getInvalid` than the pure `unknown` it currently returns.
`resources/app/common/types.mjs` - Consider if these are still supposed to be in the global scope or to change them to module exports as `types` a la `client.mjs` - Make individual type...
`resources/app/client/data/documents/combatant.js`
After some testing, you can absolutely provide data models for the `base` type and any other core-provided types. Our implementation of `TypeDataField` should reflect that. We should also make sure...