feat: get variation details by variation type

[duyhungtnn]

Related bucketeer-io/bucketeer#886

Changes

• Added new type BKTValue to hold all valid types that could used on the interface. (refs from OpenFeature SDK interface)

export type BKTPrimitiveValue = null | boolean | string | number
export type BKTJsonObject = {
  [key: string]: BKTValue
}
export type BKTJsonArray = BKTValue[]
/**
 * Represents a JSON node value.
 */
export type BKTValue = BKTPrimitiveValue | BKTJsonObject | BKTJsonArray

• Create the new data class BKTEvaluationDetail<BKTValue> to support getting variation details by type.
• Introduce a new interface to get variation details by variation type

  jsonVariation: (
    featureId: string,
    defaultValue: BKTJsonValue,
  ) => BKTJsonValue
   objectVariation: (
    featureId: string,
    defaultValue: BKTJsonValue,
  ) => BKTJsonValue
   stringVariationDetails: (
    featureId: string,
    defaultValue: string,
  ) => BKTEvaluationDetail<string>

  numberVariationDetails: (
    featureId: string,
    defaultValue: number,
  ) => BKTEvaluationDetail<number>

  booleanVariationDetails: (
    featureId: string,
    defaultValue: boolean,
  ) => BKTEvaluationDetail<boolean>
  
   objectVariationDetails: (
    featureId: string,
    defaultValue: BKTJsonValue,
  ) => BKTEvaluationDetail<BKTJsonValue>

• The method evaluationDetails will be deprecated after this PR.

Breaking changes

• This PR introduces breaking changes on the method jsonVariation. The previous logic could return any type but we don't allow it anymore.
  The returned value will be either a BKTJsonObject or a BKTJsonArray. If no result is found, it will return the provided defaultValue, which can be of any type within BKTJsonValue.

• Also this method jsonVariation is marked as deprecated and the user should use objectVariation instead.
  It is not removed to prevent build failures in the current project that uses this method.

[cre8ivejp]

@duyhungtnn, please fix the conflicts.

[duyhungtnn]

@cre8ivejp I fixed the conflict and updated this PR with new changes from the main branches.

[duyhungtnn]

• The jsonVariation method has been deprecated. It is not removed to prevent build failures in the current project that uses this method.

[cre8ivejp]

WDYT of renaming the file name to BKTJsonTypes?

[duyhungtnn]

I think it could better if named as BKTValue like Android & iOS

[cre8ivejp]

Sounds good to me.

[duyhungtnn]

I updated it 14c24ac

[duyhungtnn]

Changes

• restore: jsonVariation method
• chore: move BKTValue & BKTEvaluationDetails to new files

[cre8ivejp]

Changes

• restore: jsonVariation method
• chore: move BKTValue & BKTEvaluationDetails to new files

The e2e tests are failing. Can you check?
https://github.com/bucketeer-io/javascript-client-sdk/actions/runs/10732120264/job/29763288615

[cre8ivejp]

Thank you!