`JsonSchema.fromZSchema` includes refs when `refType = SchemaStyle.Inline`

[guersam]

Describe the bug JsonSchema.fromZSchema includes refs when refType = SchemaStyle.Inline.

To Reproduce Steps to reproduce the behaviour:

1. Define nested case classes with Schema
2. Convert the outer one's schema using JsonSchema.fromZSchema with refType = SchemaStyle.Inline
3. Serialize the generated JsonSchema into a JSON string

scastie

Expected behaviour

All properties are inlined i.e. there are no $ref

Actual behavior

Nested object is still referenced by name

{
  "type" : 
    "object",
  "properties" : {
    "bar" : {
      "$ref" : "#/components/schemas/Bar"
    }
  },
  "required" : [
    "bar"
  ]
}

Additional context

It's needed for structured output when using OpenAI.

[guersam]

I tried simply replacing the hardcoded refType arguments in JsonSchema.fromZSchema with the outer refType, but it causes another bug that flattens nested case classes in properties field.