- Backend: Add display_name to TaskNode and DagNode for human-readable names
- Frontend: Update visualizer and tabs to use display_name
- UX: Implement global scrolling layout for ReportPage
- UX: Add sticky behavior with visual feedback for Workflow Sidebar
- UX: Fix RealtimeLogs scrolling and layout issues
- Fix `simple_test_analysis` template in E2E test setup to align with Orchestrator's data fetch logic.
- Implement and verify additional E2E scenarios:
- Scenario C: Partial Provider Failure (verified error propagation fix in Orchestrator).
- Scenario D: Invalid Symbol input.
- Scenario E: Analysis Module failure.
- Update `WorkflowStateMachine::handle_report_failed` to correctly scope error broadcasting to the specific task instead of failing effectively silently or broadly.
- Update testing strategy documentation to reflect completed Phase 4 testing.
- Skip Scenario B (Orchestrator Restart) as persistence is not yet implemented (decision made to defer persistence).