Agent responses need collapsable button

[aicover324-lgtm]

Description

After the new update, agent responses (thinking mode) are not collapsable and take up unnecessary space in context window.

Plugins

No response

OpenCode version

1.2.9

Steps to reproduce

No response

Screenshot and/or share link

No response

Operating System

No response

Terminal

No response

[github-actions]

This issue might be a duplicate of existing issues. Please check:

• Opencode Web: Thinking is not differentiable from main #14340: Opencode Web: Thinking is not differentiable from main — same report of agent thinking responses not being collapsible/distinguishable after a recent update

If your issue is distinct, please clarify how it differs. Otherwise, consider adding your feedback to the existing issue.

[titet11]

There is also a missing h1 heading for each final answer.