fix: revert empty-frame workaround (#83)

[benjamincanac]

Reverts #83 ("avoid empty assistant frame during streaming").

Why: #83 was a misdiagnosis. The empty "Thinking…" frame that stays for the whole stream is a stale showIndicator computed in @nuxt/ui's UChatMessages — it reads lastMessage.parts.length, but @ai-sdk/vue mutates messages in place under shallowRef + triggerRef, so it only re-runs on status change. Fixed upstream in nuxt/ui#6673.

#83 dropped the createUIMessageStream wrapper for direct toUIMessageStream, which broke assistant-message persistence (responseMessage.id was "" → onConflictDoNothing skipped every insert).

This PR restores the wrapper (real message id, in-stream data-chat-title title) and points @nuxt/ui at the nuxt/ui#6673 preview build (pkg.pr.new) to verify the indicator fix.

Draft until nuxt/ui#6673 is released — then bump @nuxt/ui back to a published version.

[coderabbitai]

Important

Review skipped

Draft detected.

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 4a9db21a-2636-47aa-9fff-16012c268d32

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

• 🔍 Trigger review

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/revert-empty-frame

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}