fix(react-query): preserve narrowing with NoInfer

[Gujiassh]

🎯 Changes

• wrap the useQuery return-type NoInfer fence in a distributive helper
• preserve the reverse-inference guard that rejects incorrect contextual UseQueryResult annotations
• restore discriminated-union narrowing on query.data
• add focused dts coverage for the narrowing regression reported in #11018

Closes #11018

✅ Checklist

• I have followed the steps in the Contributing guide.
• I have tested this code locally with pnpm run test:pr.
• Additional local validation: pnpm --filter @tanstack/react-query test:types:tscurrent

🚀 Release Impact

• This change affects published code, and I have generated a changeset.
• This change is docs/CI/dev-only (no release).
• This PR changes published React Query types. I have not added a changeset in this contribution.

[coderabbitai]

📝 Walkthrough

Walkthrough

This PR introduces a NarrowableNoInfer<T> type in useQuery.ts, a distributive conditional type wrapping NoInfer<T>, applied to TData across the three useQuery overload return types. A new type-level test verifies discriminated-union narrowing is preserved.

Changes

NarrowableNoInfer Fix

Layer / File(s)	Summary
NarrowableNoInfer type and overload updates packages/react-query/src/useQuery.ts	Adds NarrowableNoInfer<T> conditional type wrapping NoInfer<T> and applies it to TData in DefinedInitialDataOptions, UndefinedInitialDataOptions, and UseQueryOptions overload return types.
Discriminated-union narrowing type test packages/react-query/src/__tests__/useQuery.test-d.tsx	Adds a new type test confirming query.data?.type === 'first' ? undefined : query.data narrows correctly to the 'second' variant or undefined.

Estimated code review effort: 2 (Simple) | ~10 minutes

Possibly related PRs

• TanStack/query#10593: Prior change to useQuery's NoInfer typing that this PR fixes a regression from.
• TanStack/query#10985: Related NoInfer-driven type-inference fix in a related query generics area.

Suggested labels: package: react-query

Suggested reviewers: TkDodo

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	The code matches #11018 by wrapping NoInfer distributively, preserving the reverse-inference guard, and adding narrowing coverage.
Out of Scope Changes check	✅ Passed	All changes are confined to useQuery typing and a related dts test, with no unrelated code introduced.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Title check	✅ Passed	The title clearly matches the main change: preserving narrowing while adjusting NoInfer behavior in react-query.
Description check	✅ Passed	The description follows the template and covers changes, checklist, and release impact with enough detail.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[TkDodo]

i would rather just revert and remove the NoInfer from the return type. we don’t do this anywhere else and the bug that it fixed is questionable at best.