### What this PR does
Before this PR:
- Grok 4.3 did not fully support reasoning effort through the xAI
responses path.
- Cherry Studio did not expose the Grok 4.3 reasoning options
consistently in model configuration.
- The local @ai-sdk/xai patch could fail pnpm install after manual patch
edits.
After this PR:
- Grok 4.3 correctly maps `reasoning_effort` to xAI responses with
`none`, `low`, `medium`, and `high`.
- The renderer exposes Grok 4.3 as a supported reasoning model with the
correct option set.
- The local @ai-sdk/xai patch is regenerated and narrowed to the
responses path so pnpm install succeeds.
Fixes #
N/A
### Why we need it and why it was done in this way
The following tradeoffs were made:
- The change is scoped to the xAI responses path because Grok is already
routed to `xai-responses` in this repository.
- A local patch is still required because the latest stable
`@ai-sdk/xai` release does not yet support `none` for xAI responses
`reasoningEffort`.
- The patch was narrowed to responses-only to avoid widening behavior
for the base xAI chat path.
The following alternatives were considered:
- Upgrading directly to the latest stable `@ai-sdk/xai`, but the latest
stable release still does not support `none` for responses
`reasoningEffort`.
- Broadening the patch to cover xAI chat options as well, but that would
expand behavior beyond the required Grok 4.3 responses path.
Links to places where the discussion took place: None
### Breaking changes
None.
If this PR introduces breaking changes, please describe the changes and
the impact on users.
### Special notes for your reviewer
- Focused validation passed with `pnpm install`, `pnpm typecheck:web`,
and targeted Vitest suites for xAI/Grok reasoning and model config.
- Full `pnpm test` on Windows still has unrelated baseline failures
outside this change set.
### 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.
- [x] PR: The PR description is expressive enough and will help future
contributors
- [x] Code: [Write code that humans can
understand](https://en.wikiquote.org/wiki/Martin_Fowler#code-for-humans)
and [Keep it simple](https://en.wikipedia.org/wiki/KISS_principle)
- [x] Refactor: You have [left the code cleaner than you found it (Boy
Scout
Rule)](https://learning.oreilly.com/library/view/97-things-every/9780596809515/ch08.html)
- [x] Upgrade: Impact of this change on upgrade flows was considered and
addressed if required
- [x] Documentation: A [user-guide update](https://docs.cherry-ai.com)
was considered and is present (link) or not required. Check this only
when the PR introduces or changes a user-facing feature or behavior.
- [x] Self-review: I have reviewed my own code (e.g., via
[`/gh-pr-review`](/.claude/skills/gh-pr-review/SKILL.md), `gh pr diff`,
or GitHub UI) before requesting review from others
### Release note
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```release-note
Fixed Grok 4.3 reasoning effort support in xAI responses so Cherry Studio now correctly exposes and applies the `none`, `low`, `medium`, and `high` reasoning levels.
```
---------
Signed-off-by: ousugo <dkzydkzyxh@gmail.com>
Co-authored-by: ousugo <dkzydkzyxh@gmail.com>
Co-authored-by: SuYao <sy20010504@gmail.com>
