RI-7930 Index Info hook

[valkirilov]

What

Added a hook to get index information

• Simple standalone hook to get info for the index via the API
• No Redux, instead keep the data in local state
• It transforms the data when received from the API, and later on uses the front-end only interface, to keep it decoupled from the backend

PS: Later to be used together with the IndexInfo component on the new Vector Search page (#5436)

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Testing

export const IndexInfoExample = () => {
  const indexName = 'idx:bikes_vss'
  const { indexInfo, loading, error } = useIndexInfo({ indexName })

  return (
    <>
        <IndexInfo
          indexInfo={loading ? undefined : indexInfo}
          dataTestId="index-info-example"
        />
    </>
  )
}

---

Note

Medium Risk
Introduces new async fetching + transformation logic used by the Vector Search UI; main risk is incorrect/stale state or type normalization causing wrong index info to render.

Overview
Adds a new useIndexInfo hook for the Vector Search page to fetch REDISEARCH_INFO via apiService, store results in local state, and expose { indexInfo, loading, error, refetch }.

Includes DTO→frontend model transformation (snake_case→camelCase, numeric string→number, field type normalization) and guards against races by ignoring stale responses and resetting loading/error when indexName becomes empty.

Updates the IndexInfo mock factory to emit uppercase attribute type values (matching API expectations) and adds unit tests covering successful fetch, error handling, refetch, stale-response handling, and the transform utilities.

^{Written by Cursor Bugbot for commit b53b38a. This will update automatically on new commits. Configure here.}

[github-actions]

Code Coverage - Frontend unit tests

St.❔	Category	Percentage	Covered / Total
🟢	Statements	82.86%	21208/25594
🟡	Branches	68.13%	8963/13155
🟡	Functions	78.09%	5802/7430
🟢	Lines	83.26%	20768/24945

Test suite run success

5570 tests passing in 709 suites.

Report generated by 🧪jest coverage report action from b53b38a

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