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/pages/CapitalAccounts.tsx

@@ -7,6 +7,10 @@ export default function CapitalAccounts() {
   const [users, setUsers] = useState<User[]>([]);
   const [rows, setRows] = useState<CapitalAccount[]>([]);
   const [error, setError] = useState("");
+  // Exit status is per investor+fund (from the eNAV the admin keeps re-importing), so the
+  // inline picker is keyed on that pair — marking any statement row marks them all.
+  const [exitingKey, setExitingKey] = useState<string | null>(null);
+  const [exitDate, setExitDate] = useState(() => new Date().toISOString().slice(0, 10));
 
   const investors = useMemo(() => users.filter((u) => u.role === "investor"), [users]);
   const userById = useMemo(() => new Map(users.map((u) => [u.id, u])), [users]);
@@ -15,6 +19,17 @@ export default function CapitalAccounts() {
   const load = () => {
     api.listCapitalAccounts().then(setRows).catch((e) => setError(e.message));
   };
+
+  const saveExit = async (r: CapitalAccount, exitedOn: string | null) => {
+    setError("");
+    try {
+      await api.setPartnerExited(r.entity_id, r.investor_user_id, exitedOn);
+      setExitingKey(null);
+      load();
+    } catch (e: any) {
+      setError(e.message || "Failed to update exit status");
+    }
+  };
   useEffect(() => {
     api.listEntities().then(setEntities).catch(() => {});
     api.listUsers().then(setUsers).catch(() => {});
@@ -48,13 +63,14 @@ export default function CapitalAccounts() {
               <th className="px-4 py-2 font-medium text-right">Contributions</th>
               <th className="px-4 py-2 font-medium text-right">Distributions</th>
               <th className="px-4 py-2 font-medium text-right">Ending balance</th>
+              <th className="px-4 py-2 font-medium">Status</th>
               <th className="px-4 py-2"></th>
             </tr>
           </thead>
           <tbody>
             {rows.map((r) => (
               <tr key={r.id} className="border-t border-gray-100">
-                <td className="px-4 py-2 text-gray-900">
+                <td className={`px-4 py-2 ${r.exited_on ? "text-gray-500" : "text-gray-900"}`}>
                   {userById.get(r.investor_user_id)?.name ?? r.investor_user_id}
                 </td>
                 <td className="px-4 py-2 text-gray-600">{entityById.get(r.entity_id)?.name ?? r.entity_id}</td>
@@ -64,6 +80,49 @@ export default function CapitalAccounts() {
                 <td className="px-4 py-2 text-right text-gray-900 font-medium">
                   {formatMoneyExact(r.ending_balance_cents)}
                 </td>
+                <td className="px-4 py-2 whitespace-nowrap">
+                  {r.exited_on ? (
+                    <span>
+                      <span className="text-xs font-medium uppercase text-gray-500 bg-gray-100 px-1.5 py-0.5 rounded">
+                        Exited {formatDate(r.exited_on)}
+                      </span>
+                      <button
+                        onClick={() => saveExit(r, null)}
+                        className="ml-2 text-xs text-accent-600 hover:text-accent-700"
+                      >
+                        Undo
+                      </button>
+                    </span>
+                  ) : exitingKey === `${r.entity_id}:${r.investor_user_id}` ? (
+                    <span className="flex items-center gap-1.5">
+                      <input
+                        type="date"
+                        value={exitDate}
+                        onChange={(e) => setExitDate(e.target.value)}
+                        className="px-1.5 py-0.5 border border-gray-300 rounded text-xs"
+                      />
+                      <button
+                        onClick={() => exitDate && saveExit(r, exitDate)}
+                        className="text-xs text-accent-600 hover:text-accent-700 font-medium"
+                      >
+                        Save
+                      </button>
+                      <button
+                        onClick={() => setExitingKey(null)}
+                        className="text-xs text-gray-400 hover:text-gray-600"
+                      >
+                        Cancel
+                      </button>
+                    </span>
+                  ) : (
+                    <button
+                      onClick={() => setExitingKey(`${r.entity_id}:${r.investor_user_id}`)}
+                      className="text-xs text-gray-400 hover:text-gray-600"
+                    >
+                      Mark exited
+                    </button>
+                  )}
+                </td>
                 <td className="px-4 py-2 text-right">
                   <button
                     onClick={() => {
@@ -79,7 +138,7 @@ export default function CapitalAccounts() {
             ))}
             {rows.length === 0 && (
               <tr>
-                <td colSpan={7} className="px-4 py-6 text-center text-gray-400">
+                <td colSpan={8} className="px-4 py-6 text-center text-gray-400">
                   No statements yet.
                 </td>
               </tr>