feat: Add grouped table with raw JSON of events

[adhityamamallan]

Summary

• Add fetching and grouping logic for Workflow History V2 page & components, based on the existing fetching logic for V1
• Add grouped events table, with JSON placeholder for each event group row

Test plan

Unit tests + ran locally.

[Copilot]

Pull request overview

This PR implements a grouped table view for workflow history v2 that displays raw JSON representations of event groups. The implementation sets up the infrastructure for virtualized rendering of workflow history events with pagination support.

Key Changes:

• Added virtualized table component using react-virtuoso for displaying grouped workflow events
• Integrated data fetching, grouping, and filtering logic from existing workflow history utilities
• Implemented automatic loading behavior based on visible range and missing events

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
src/views/workflow-history-v2/workflow-history-v2.types.ts	Replaced unused color types with new VisibleHistoryRanges type to track visible event indices
src/views/workflow-history-v2/workflow-history-v2.tsx	Added comprehensive data fetching, grouping, filtering logic and conditional rendering for grouped/ungrouped views
src/views/workflow-history-v2/workflow-history-grouped-table/workflow-history-grouped-table.types.ts	Defined props interface for grouped table component including virtuoso ref and event fetching callbacks
src/views/workflow-history-v2/workflow-history-grouped-table/workflow-history-grouped-table.tsx	Implemented virtualized table with temporary JSON.stringify rendering and load more functionality
src/views/workflow-history-v2/workflow-history-grouped-table/__tests__/workflow-history-grouped-table.test.tsx	Added comprehensive test suite covering header rendering, data display, and load more functionality
src/views/workflow-history-v2/__tests__/workflow-history-v2.test.tsx	Enhanced tests with MSW mocking, suspense handling, and scenarios for loading states and view toggling

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