### Describe the bug After updating to pydantic-ai v1, the generation spans no longer show input and output in Langfuse. <img width="1412" height="988" alt="Image" src="https://github.com/user-attachments/assets/95af0575-e0c2-4121-808b-eb83d7efbeb3" /> ### Steps to reproduce Run Agent with pydantic-ai v1, instrumented with Langfuse. ### Langfuse Cloud or self-hosted? Self-hosted ### If self-hosted, what version are you running? 3.108.0 ### SDK and integration versions Python SDK, v3.3.4 ### Additional information _No response_ ### Are you interested in contributing a fix for this bug? No