🥕[Bug]: JSON Schema: Missing Default Values

The following properties are documented with default values in the [[official Data API Builder documentation](https://learn.microsoft.com/en-us/azure/data-api-builder/reference-configuration)](https://learn.microsoft.com/en-us/azure/data-api-builder/reference-configuration), but the schema does not specify these defaults.

## Recommendation

**`runtime.graphql.allow-introspection`**
- **Docs Default:** `true`
- **Schema:** No default specified.