Back link is missing in subagent transcript

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#333,684 opened on Aug 31, 2026 0 comments 0 reactions 1 assignee Claimed by @justschen View on GitHub

Description

Testing #333402

Side chat has a nice link to the primary chat, however there is no such affordance for a subagent, so it's not clear which session started it:

![Image](https://github.com/user-attachments/assets/35d6d0ff-2d9c-4232-8654-def49664f908)

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