feat: Workflow History V2 - ungrouped event row

[adhityamamallan]

Summary

Implement WorkflowHistoryUngroupedEvent component

Test plan

Unit tests + ran locally.

[Copilot]

Pull request overview

This PR implements a new ungrouped event row component for Workflow History V2, transitioning from a temporary placeholder to a fully functional UI component with collapsible event details, status badges, and reset functionality.

Key Changes

• Replaced placeholder implementation with a complete accordion-based event row using BaseUI Panel component
• Added comprehensive styling with responsive grid layouts and animation support for event highlighting
• Implemented thorough test coverage with 15+ test cases covering expansion states, reset functionality, and detail rendering

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
workflow-history-ungrouped-event.tsx	Implements the main component with event display, status badges, duration calculations, and expandable group details
workflow-history-ungrouped-event.styles.ts	Defines styled components and overrides for the Panel component with responsive grid layouts and hover animations
workflow-history-ungrouped-event.test.tsx	Adds comprehensive test suite covering event rendering, expansion behavior, reset functionality, and edge cases

Comments suppressed due to low confidence (1)

src/views/workflow-history-v2/workflow-history-ungrouped-event/workflow-history-ungrouped-event.styles.ts:165

• The badge property in the overrides object is never used in the component. Only overrides.panel is referenced in workflow-history-ungrouped-event.tsx (line 116). Consider removing this unused code to reduce maintenance burden, or if it's intended for future use, add a comment explaining its purpose.

        whiteSpace: 'nowrap',
        marginLeft: $theme.sizing.scale100,
      }),
    },
  } satisfies BadgeOverrides,
});

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