The eNAV keeps listing exited members each quarter, so the admin needs
the exit control where the statements live:
- Capital Accounts table gains a Status column with the same
Exited-badge / mark / undo flow as the Partners tab (keyed per
investor+fund pair — marking any statement row marks them all)
- set_partner_exited now creates the access row (flag set) when a
manually-entered investor has statements but no roster entry yet;
clearing a never-set exit stays 404
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>