0.2.34: manage exited status from the Capital Accounts view

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>

frontend/src/version.ts

@@ -1,4 +1,4 @@
 // Bumped each release so the running build is visible in the UI.
 // If the number shown in the app doesn't match the installed s9pk version,
 // the new frontend isn't actually being served.
-export const APP_VERSION = "0.2.33";
+export const APP_VERSION = "0.2.34";