- Show previously-created custom steps as clickable options on decision
nodes so they remain accessible after going back
- Fix breadcrumb to show custom step titles instead of raw UUIDs
- Fix ContinuationModal to show grandchildren (two levels deep) instead
of immediate children that duplicate option labels
- Remove redundant "Save to Library" checkbox from StepForm since
PostStepActionModal now handles that decision
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Custom steps during tree navigation now support a complete workflow:
- PostStepActionModal: Save for Later / Use Now / Both options
- ContinuationModal: Pick descendant nodes or build custom branch
- ForkTreeModal: Save modified tree as personal copy at completion
- Custom steps are recorded in decisions array for export
- Fix popular-tags API endpoint URL mismatch
- Add aria-labels for accessibility on select/button elements
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>