Add monitoring return control tests

agent-studio-mini/apps/web/tests/monitoring.test.tsx

@@ -0,0 +1,21 @@
+import {afterEach,it,expect,vi} from "vitest";
+import {cleanup,render,screen,fireEvent} from "@testing-library/react";
+import "@testing-library/jest-dom/vitest";
+import {Monitoring} from "../src/Monitoring.js";
+afterEach(()=>{cleanup();vi.unstubAllGlobals();});
+it("shows creative evidence separately and preserves failure warnings",async()=>{
+  vi.stubGlobal("fetch",vi.fn(async()=>({ok:true,json:async()=>({settings:{enabled:false,minSpend:100,minOrders:5,minImpressions:1000,staleHours:12,fatigueCtrDrop:25,fatigueViewDrop:20,fatigueMinClicks:30},rows:[],accounts:[{id:"a",tenant:"t",name:"Test account",count:0,excluded:0,fatigueError:"素材结果被截断"}],fatigueRows:[{key:"k",id:"video-1",campaignId:"c",variant:"ADS_AND_ORGANIC",state:"creative_decline",reason:"疲劳证据不足",suggestions:["人工核实"],handled:false,period:"3日对比7日",account:{id:"a",tenant:"t",name:"Test account"},ctrDrop:50,viewDrop:null,recent:{ctr:.05,impressions:3000,clicks:150,days:3},baseline:{ctr:.1,impressions:7000,clicks:700,days:7}}]})})));
+  render(<Monitoring onClose={()=>{}}/>);
+  await screen.findByText("素材 CTR 相对降幅（%）");
+  fireEvent.click(screen.getByRole("button",{name:"素材疲劳预警"}));
+  expect(screen.getByText(/素材 video-1/)).toBeInTheDocument();
+  expect(screen.getByText(/素材结果被截断/)).toBeInTheDocument();
+  expect(screen.getByText(/6秒观看率相对降幅 无有效数据/)).toBeInTheDocument();
+});
+it("returns to the workspace from the monitoring dialog",()=>{
+  vi.stubGlobal("fetch",vi.fn(async()=>({ok:true,json:async()=>({settings:{enabled:false,minSpend:100,minOrders:5,minImpressions:1000,staleHours:12,fatigueCtrDrop:25,fatigueViewDrop:20,fatigueMinClicks:30},rows:[],accounts:[],fatigueRows:[],newAlerts:0})})));
+  const onClose=vi.fn();
+  render(<Monitoring onClose={onClose}/>);
+  fireEvent.click(screen.getByRole("button",{name:"返回工作台"}));
+  expect(onClose).toHaveBeenCalledOnce();
+});