deserialization doesn't work with kotlin and @McpToolParam

[kylelutze]

Bug description
When using @tool+@ToolParam with a bean that returns ToolCallbackProvider for the class, if the ToolParam is an object, such as

@Serialization
data class UserSearchRequest(
  userId: UUID? = null,
  username: String? = null,
)

It will be deserialized as expected. When using @mcptool+@McpToolParam, I instead get the error

"Cannot construct instance of `net.package.UserSearchRequest` (no Creators, like default constructor, exist): cannot deserialize from Object value (no delegate- or property-based Creator)
 at [Source: REDACTED (`StreamReadFeature.INCLUDE_SOURCE_IN_LOCATION` disabled); line: 1, column: 2]"

Environment
spring-ai-starter-mcp-server-webmvc:1.1.0-M2
spring-boot 3.5.4
running in stateless mode side by side with a spring webmvc service.

Expected behavior
The data object to be deserialized successfully.