Get Task Workflow Groups

Retrieves comprehensive workflow progress information for a TaskItem.

Returns detailed progress data including:

• Overall completion statistics (total steps, completed steps, percentage)
• All workflow steps with current status and assignments
• Available steps that can be worked on next
• Steps grouped by workflow groups for organized display

Use this endpoint to:

• Display workflow progress dashboards
• Show step-by-step task execution status
• Identify bottlenecks and available work
• Track overall workflow completion

Example Response:
{
"totalSteps": 8,
"completedSteps": 3,
"progressPercentage": 37.5,
"allSteps": [...],
"availableSteps": [...],
"groupedSteps": [...]
}