feat(P25-2/P25-3/P26-2/P28-1/P24-2/P29-3): 落地内部OA够用版前端入口与运营页面

关联 Issue: P25-2, P25-3, P25-4, P26-2, P26-4, P28-1, P28-2, P28-3, P28-4, P24-2, P29-3

client/src/api/search.ts

@@ -0,0 +1,17 @@
+import { apiRequestData } from "./http";
+
+export type GlobalSearchHit = {
+  entityType: "reimbursement" | "leave" | "purchase_request" | "travel_request" | "asset";
+  entityId: string;
+  title: string;
+  subtitle: string | null;
+  status: string | null;
+  href: string;
+  matchedBy: "exact" | "prefix" | "contains";
+  updatedAt: string | null;
+};
+
+export async function searchGlobal(q: string, limit = 10) {
+  const params = new URLSearchParams({ q, limit: String(limit) });
+  return apiRequestData<{ items: GlobalSearchHit[] }>(`/api/search?${params.toString()}`);
+}