[Feature]: Add Chats feature like Codex so individual chats don't require making projects.

[indishere]

Before submitting

• I searched existing issues and did not find a duplicate.
• I am describing a concrete problem or use case, not just a vague idea.

Area

apps/desktop
apps/mobile

Problem or use case

Currently, we need to make projects before we can chat in chats.

Proposed solution

We should be able to chat without forcing us to chat in a project, like in codex.

Why this matters

That would make it more convenient to use.

Smallest useful scope

Add it in the desktop app first before releasing it to mobile.

Alternatives considered

No response

Risks or tradeoffs

No response

Examples or references

Contribution

• I would be open to helping implement this.

[mrmg]

Implementation in progress in #6529 (core + command palette New chat). Sidebar New / mobile chrome are not in that slice.

[juliusmarminge]

#6891 adds detail to this projectless-chat request: use a neutral T3-managed directory, omit project instructions and Git controls, and clearly identify projectless threads. Attaching the chat to a project later is an optional follow-up. Both discussions point to #6529.

[ognjeeen]

+1, would love this. Sometimes I just want to ask a quick question or brainstorm without having to pick a project first.

[benmarg]

+1 big missing feature IMO