feat: todos

[alephpiece]

What this PR does

Support assistant todos:

• UserMessageTodo, i.e., pending messages
• Todos management
  • clear all
  • remove a todo
  • deactivate a todo executor on aborting
  • sync failure status from message to todo item

Example

todos.mp4

Fixes #

Why we need it and why it was done in this way

The following tradeoffs were made:

The following alternatives were considered:

Links to places where the discussion took place:

Breaking changes

If this PR introduces breaking changes, please describe the changes and the impact on users.

Special notes for your reviewer

Checklist

This checklist is not enforcing, but it's a reminder of items that could be relevant to every PR.
Approvers are expected to review this list.

• PR: The PR description is expressive enough and will help future contributors
• Code: Write code that humans can understand and Keep it simple
• Refactor: You have left the code cleaner than you found it (Boy Scout Rule)
• Upgrade: Impact of this change on upgrade flows was considered and addressed if required
• Documentation: A user-guide update was considered and is present (link) or not required. You want a user-guide update if it's a user facing feature.

Release note

[DeJeune]

Note

This comment was translated by Claude.

Is this similar to Cursor's?

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Original Content

就是类似于cursor那种？

[alephpiece]

Note

This comment was translated by Claude.

[!NOTE]
This comment was translated by Claude.

Is this similar to Cursor's?

---

Original Content

就是类似于cursor那种？

That's the idea, but currently we only have pending messages, and haven't implemented assistant-controlled todos yet.

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Original Content

> > [!NOTE] > > This comment was translated by Claude. > > Is this similar to Cursor's? > > --- >

>

Original Content

> 就是类似于cursor那种？ >

是这么想的，不过目前只有 pending messages，还没有让助手来控制 todos