fix(types): ensure non-undefined data on isSuccess with exactOptionalPropertyTypes

[CO0Ki3]

Fixes #5086

fix(types): ensure non-undefined data on isSuccess with exactOptionalPropertyTypes

When TypeScript exactOptionalPropertyTypes: true is enabled, UseQueryStateDefaultResult
could infer data as undefined even on isSuccess branches. This patch explicitly sets
data: ResultTypeFrom<D> (and currentData: ResultTypeFrom<D> when !isFetching)
to provide correct type narrowing while keeping isLoading as data: undefined.

• Replace Required<Pick<..., 'data'>> with explicit data: ResultTypeFrom<D>
• Keep data: undefined only on isLoading branch
• Make currentData required on isSuccess && !isFetching
• Preserve fulfilledTimeStamp/error constraints

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[CO0Ki3]

Suggestion: split each union branch into a dedicated named type. It reads cleaner and improves maintainability.

as-is

type UseQueryStateDefaultResult<D extends QueryDefinition<any, any, any, any>> =
  TSHelpersId<
    | TSHelpersOverride<
        Extract<
          UseQueryStateBaseResult<D>,
          { status: QueryStatus.uninitialized }
        >,
        { isUninitialized: true }
      >
    | ...

suggest to-be

type QueryUninitialized<D extends QueryDefinition<any, any, any, any>> =
  TSHelpersOverride<
    Extract<UseQueryStateBaseResult<D>, { status: QueryStatus.uninitialized }>,
    { isUninitialized: true }
  >

...

type UseQueryStateDefaultResult<D extends QueryDefinition<any, any, any, any>> = 
  TSHelpersId<
    | QueryUninitialized<D>
    | ...