Step F8：药品管理（IMP）

frontend/src/api/impInventory.ts

@@ -0,0 +1,16 @@
+import { apiGet } from "./axios";
+import type { AxiosResponse } from "axios";
+import type { ApiListResponse } from "../types/api";
+
+export interface ImpInventoryRow {
+  site_id: string;
+  batch_id: string;
+  quantity_on_hand: number;
+  updated_at: string;
+}
+
+export const fetchImpInventory = (
+  studyId: string,
+  params?: Record<string, any>
+): Promise<AxiosResponse<ApiListResponse<ImpInventoryRow>>> =>
+  apiGet(`/api/v1/studies/${studyId}/imp/inventory/`, { params });