aisman

Direct session 53, Step 1: Workflow steps 1-3: issue selection, instructions, and generation improvements:
- Workflow step 1-3 improvements (parent)
- Prevent workflow issue list re-render on main tab switch
- Make workflow issue numbers clickable links to Issues tab
- Move 'Not implemented' button from popup to main button row in workflow
- Show empty state messages in workflow step 1 with contextual icons
- Fix checkbox style: only ready issues get checkmark, rest get exclamation
- Fix note left-border color to be based on note type, not implementation status
- Fix non-ready issue click behavior in workflow step 1
- Fix default story height button and list mode in step 2
- Add Preview button for UserStory Markdown in step 2
- Update story title from SessionStepTitle after processing
- Include only ready-checked issues in step 3 generation
- Show popup message for non-ready issues when generating in step 3
- Fix input JSON generation to match template format