aisman

Direct session 2, Step 1: Settings UI, diff comparison, loading overlay, project counters

Issues implemented:
- Settings tabs: show/hide Save and Cancel buttons based on text changes
- Update 'Update to latest version' button text and tooltip
- Fix Update local version flow: use server endpoint instead of file download
- Server endpoint for rendered template content with token data
- Dev/admin-only Tokens button visibility
- Fix 3-column checkbox behavior in version comparison
- Fix diff comparison: intelligent gap insertion for added/removed lines
- Fix double-click scroll in diff panel
- Fix root folder selection to show full path
- Add button separator CSS class for project detail
- Improve loading overlay backdrop with circular gradient
- Add Unprocessed issues counter to project detail
- Add Unprocessed sessions counter to project detail
- Add Unprocessed steps counter to project detail
- Settings UI improvements
- Diff comparison panel improvements
- Project detail unprocessed counters
- Fix Aisman instructions update review title casing

Direct session 2, Step 2: Issue catalog and global renumbering

Issues implemented:
- Create .aisman/outputs/settings/ directory for catalog persistence
- Create catalog.json — global issue number tracker and title index
- Renumber all issues in existing output files to be globally sequential
- Fix cross-file reference errors in 000_001-03.json after renumbering
- Update Num Management rules in instructions.md and template to use catalog.json

Direct session 3, Step 1: Catalog simplification + session-numbering rule
Issues implemented:
- Add new-chat = new direct session rule to template Rule 6
- Rewrite catalog.json to simplified compact format
- Update template Rule 2 for simplified catalog schema and after-write workflow