Cleanup: list people with no sex set + inline set

Adds a "People with no sex set" section to the Cleanup page — lists everyone
whose gender is still null with inline ♂ Male / ♀ Female buttons (and a link to
their page). Refreshes after the source-match and first-name guess passes, so
it's the manual mop-up for whatever those leave behind.

Frontend only (reuses person list + PATCH) — no migration.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

frontend/app/trees/[id]/cleanup/page.tsx

@@ -12,6 +12,7 @@ import { Input } from "@/components/ui/input";
 type Deceased = components["schemas"]["DeceasedCandidate"];
 type GenderProp = components["schemas"]["GenderProposal"];
 type NameIssue = components["schemas"]["NameIssue"];
+type Person = components["schemas"]["PersonRead"];
 
 const ISSUE_LABEL: Record<string, string> = {
   date_in_surname: "date in surname",
@@ -36,6 +37,9 @@ export default function CleanupPage() {
   const [genMsg, setGenMsg] = useState<string | null>(null);
   const genFile = useRef<HTMLInputElement>(null);
 
+  // People still missing a sex (manual mop-up)
+  const [unset, setUnset] = useState<Person[] | null>(null);
+
   // 3) Name issues
   const [issues, setIssues] = useState<NameIssue[] | null>(null);
   const [edits, setEdits] = useState<Record<string, { given: string; surname: string; on: boolean }>>({});
@@ -77,6 +81,25 @@ export default function CleanupPage() {
       setGenSel(new Set(data.map((g) => g.person_id)));
     }
   }
+  const loadUnset = useCallback(async () => {
+    const { data } = await api.GET("/api/v1/trees/{tree_id}/persons", {
+      params: { path: { tree_id: treeId } },
+    });
+    setUnset(
+      (data ?? [])
+        .filter((p) => !p.gender)
+        .sort((a, b) => (a.primary_name ?? "").localeCompare(b.primary_name ?? "")),
+    );
+  }, [treeId]);
+
+  async function setSex(personId: string, gender: "male" | "female") {
+    await api.PATCH("/api/v1/trees/{tree_id}/persons/{person_id}", {
+      params: { path: { tree_id: treeId, person_id: personId } },
+      body: { gender },
+    });
+    setUnset((prev) => (prev ? prev.filter((p) => p.id !== personId) : prev));
+  }
+
   async function guessGender() {
     setGenMsg(null);
     const { data } = await api.GET("/api/v1/trees/{tree_id}/cleanup/gender/guess", {
@@ -96,6 +119,7 @@ export default function CleanupPage() {
     });
     setGenMsg(`Set gender on ${data?.updated ?? 0} people.`);
     setGender(null);
+    loadUnset();
   }
 
   const loadNames = useCallback(async () => {
@@ -113,7 +137,8 @@ export default function CleanupPage() {
 
   useEffect(() => {
     loadNames();
-  }, [loadNames]);
+    loadUnset();
+  }, [loadNames, loadUnset]);
 
   async function applyNames() {
     const chosen = (issues ?? []).filter((i) => edits[i.name_id]?.on);
@@ -261,6 +286,49 @@ export default function CleanupPage() {
         </CardContent>
       </Card>
 
+      {/* People still missing a sex */}
+      <Card>
+        <CardHeader>
+          <CardTitle className="text-base">
+            People with no sex set{unset ? ` (${unset.length})` : ""}
+          </CardTitle>
+        </CardHeader>
+        <CardContent className="space-y-3">
+          {unset === null ? (
+            <p className="text-sm text-[var(--muted)]">Loading…</p>
+          ) : unset.length === 0 ? (
+            <p className="text-sm text-[var(--muted)]">Everyone has a sex set. 🎉</p>
+          ) : (
+            <ul className="max-h-80 divide-y divide-[var(--border)] overflow-auto rounded-lg border border-[var(--border)]">
+              {unset.map((p) => (
+                <li key={p.id} className="flex items-center gap-3 px-3 py-1.5 text-sm">
+                  <a
+                    href={`/trees/${treeId}/persons/${p.id}`}
+                    className="flex-1 truncate hover:underline"
+                  >
+                    {p.primary_name ?? "Unnamed"}
+                  </a>
+                  <button
+                    onClick={() => setSex(p.id, "male")}
+                    className="rounded px-2 py-0.5 text-xs"
+                    style={{ color: "rgb(120,159,172)", border: "1px solid rgb(120,159,172)" }}
+                  >
+                    ♂ Male
+                  </button>
+                  <button
+                    onClick={() => setSex(p.id, "female")}
+                    className="rounded px-2 py-0.5 text-xs"
+                    style={{ color: "rgb(196,138,146)", border: "1px solid rgb(196,138,146)" }}
+                  >
+                    ♀ Female
+                  </button>
+                </li>
+              ))}
+            </ul>
+          )}
+        </CardContent>
+      </Card>
+
       {/* 3) Name issues */}
       <Card>
         <CardHeader>