aisman

Direct session 61, Step 1: Unresolved issue pagination, individual issues, load-more, AI session click fix:
- Fix AI session issue click — switch to Issues tab AND select the clicked issue
- Paginate unresolved issues — load 100 at a time with server-side cursor
- Add 'Load more' button for unresolved issues section
- Add 'Individual issues' section for jump-navigation to out-of-range issues
- Merge individually loaded unresolved issues into main list on 'Load more'
- Merge individually loaded resolved issues into resolved list on 'Load more'