feat: Add support for opt-in and opt-out in Workflow History V2 feature flag

[adhityamamallan]

Summary

• Update return type of HISTORY_PAGE_V2_ENABLED feature flag from simple boolean to enum, to support special behaviour for opting in to and opting out from Workflow History V2
• Create new hook useIsWorkflowHistoryV2Selected that uses the feature flag value and combines it with local storage to decide if History V2 is selected
• Load isWorkflowHistoryV2Selected into Workflow History Context
• Move history v2 selected flag check to separate WorkflowHistoryComponent

Test plan

Updated unit tests + tested in follow-up #1133

[Copilot]

Pull request overview

This PR enhances the Workflow History V2 feature flag from a simple boolean to an enum with four states (DISABLED, OPT_IN, OPT_OUT, ENABLED), enabling a gradual rollout strategy with user opt-in/opt-out capabilities. The implementation introduces a new custom hook that combines the config value with localStorage to track user preferences, and refactors the component structure to separate concerns.

Key changes:

• Feature flag now supports DISABLED, OPT_IN, OPT_OUT, and ENABLED modes
• New useIsWorkflowHistoryV2Enabled hook manages state based on config and localStorage
• Component architecture refactored to move version-switching logic to a dedicated WorkflowHistoryComponent

Reviewed changes

Copilot reviewed 18 out of 18 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
src/config/dynamic/resolvers/history-page-v2-enabled-values.config.ts	Defines the four valid enum values for the feature flag
src/config/dynamic/resolvers/history-page-v2-enabled.types.ts	Exports TypeScript type for the enum values
src/config/dynamic/resolvers/history-page-v2-enabled.ts	Updates resolver to return enum instead of boolean, with env var validation
src/config/dynamic/resolvers/schemas/resolver-schemas.ts	Updates Zod schema to validate enum instead of boolean
src/config/dynamic/dynamic.config.ts	Updates type definition for the config value
src/utils/config/__fixtures__/resolved-config-values.ts	Updates mock fixture from false to 'DISABLED'
src/views/workflow-history-v2/hooks/use-is-workflow-history-v2-enabled.ts	New hook that determines enabled state based on config and localStorage
src/views/workflow-history-v2/hooks/__tests__/use-is-workflow-history-v2-enabled.test.tsx	Comprehensive test coverage for the new hook
src/views/workflow-history/workflow-history-context-provider/workflow-history-context-provider.types.ts	Adds v2 enabled state fields to context type
src/views/workflow-history/workflow-history-context-provider/workflow-history-context-provider.tsx	Integrates the new hook into the context provider
src/views/workflow-history/workflow-history-context-provider/__tests__/workflow-history-context-provider.test.tsx	Mocks the new hook in existing tests
src/views/workflow-history/workflow-history-wrapper/workflow-history-wrapper.tsx	Simplified to delegate version-switching logic to child component
src/views/workflow-history/workflow-history-wrapper/__tests__/workflow-history-wrapper.test.tsx	Deleted - tests moved to new component
src/views/workflow-history/workflow-history-component/workflow-history-component.tsx	New component that handles version switching based on context
src/views/workflow-history/workflow-history-component/__tests__/workflow-history-component.test.tsx	Tests for the new component's conditional rendering
src/views/workflow-history/config/workflow-history-user-preferences.config.ts	Adds localStorage config for v2 enabled preference
src/views/workflow-history/__tests__/workflow-history.test.tsx	Updates test mocks to include new context fields
src/views/workflow-history-v2/__tests__/workflow-history-v2.test.tsx	Updates test mocks to include new context fields

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