- Added normalizeMixedSchemaNode() function to recursively convert mixed JTD and JSON Schema definitions into valid JSON Schema.
- Changed output schema validation to gracefully fall back to unconstrained JSON objects when schema is invalid instead of throwing errors.
- Fixed handling of mixed JTD and JSON Schema output definitions by normalizing them during schema conversion.
- Added comprehensive test coverage for JTD-to-JSON Schema conversion and output schema validation edge cases.