not all delegate sessions have their internal stats like number of turns and tool calls

<img width="877" height="267" alt="Image" src="https://github.com/user-attachments/assets/497dc305-cc75-4387-9ffa-239b3abf91c6" />

<img width="877" height="267" alt="Image" src="https://github.com/user-attachments/assets/86624609-cacc-4b54-86c9-24418cf5ff6a" />

and they are disappearing after re-openning popup on older delegations sessions 