feat: Workflow History V2 - Ungrouped Event Table

[adhityamamallan]

Summary

Implement basic ungrouped table with placeholders for ungrouped events

Test plan

Unit tests + ran locally.

[Copilot]

Pull request overview

This PR implements the basic infrastructure for an ungrouped event table view in Workflow History V2. It creates a new table component that flattens event groups into individual events, sorts them appropriately (non-pending events by ID, pending events by time), and provides the foundation for displaying workflow history events in an ungrouped format.

Key changes:

• Added WorkflowHistoryUngroupedTable component with virtualized scrolling support
• Implemented event sorting logic that handles both pending and non-pending events
• Created placeholder WorkflowHistoryUngroupedEvent component for individual event rendering

Reviewed changes

Copilot reviewed 12 out of 12 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
workflow-history-v2.tsx	Integrated ungrouped table component with conditional rendering based on view mode
workflow-history-ungrouped-table.tsx	Main table component with event flattening, sorting, and virtualized list rendering
workflow-history-ungrouped-table.types.ts	Type definitions for table props and ungrouped event information
workflow-history-ungrouped-table.styles.ts	Responsive grid-based table header styling
workflow-history-ungrouped-table.constants.ts	Grid template columns configuration for 8-column layout
compare-ungrouped-events.ts	Sorting logic for ordering non-pending events by ID and pending events by timestamp
compare-ungrouped-events.test.ts	Comprehensive test coverage for the sorting function
workflow-history-ungrouped-table.test.tsx	Integration tests for the table component with various scenarios
workflow-history-ungrouped-event.tsx	Placeholder component that currently renders event data as JSON
workflow-history-ungrouped-event.types.ts	Type definitions for individual event props
workflow-history-ungrouped-event.styles.ts	Temporary styling for the placeholder event component
workflow-history-v2.test.tsx	Updated tests to verify ungrouped table rendering conditions

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[Copilot]

[nitpick] The component receives multiple props (workflowStartTimeMs, decodedPageUrlParams, isExpanded, toggleIsExpanded, animateOnEnter, onReset) but only destructures and uses eventInfo. While this is a placeholder implementation, consider at least destructuring the unused props to avoid ESLint warnings, or using a rest parameter pattern if they're genuinely not needed yet.

Suggested change

	export default function WorkflowHistoryUngroupedEvent({ eventInfo }: Props) {
	export default function WorkflowHistoryUngroupedEvent({
	workflowStartTimeMs,
	decodedPageUrlParams,
	isExpanded,
	toggleIsExpanded,
	animateOnEnter,
	onReset,
	eventInfo,
	}: Props) {

[Assem-Uber]

Interesting, does this shows a warning ?

[adhityamamallan]

Nope, it would show a warning if I implemented Copilot's suggestion though.
I think this is a good argument in favour of having inline "Props" instead of keeping them in a separate file.

[Assem-Uber]

How does inline props help here ?

[Assem-Uber]

Interesting, does this shows a warning ?

[Assem-Uber]

Nit: the name eventGroupsById got me for a second thinking it is a map.

[adhityamamallan]

True, I see that we call the Array<[string, Type]> type "Entries" in some other places