[nexus] fix(audit): resolve integration checker findings — straggler strings, query param pre-fill, orphaned import

ui/src/pages/Approvals.tsx

@@ -1,5 +1,4 @@
 import { useEffect, useState } from "react";
-import { VOCAB } from "@paperclipai/branding";
 import { useNavigate, useLocation } from "@/lib/router";
 import { useQuery, useMutation, useQueryClient } from "@tanstack/react-query";
 import { approvalsApi } from "../api/approvals";