feat: add project-aware agent workspace

tests/browser/support/answer-ui-demo.ts

@@ -0,0 +1,72 @@
+export const answerUiDemoBlock = {
+  version: "answer-ui@1",
+  block_id: "pressure",
+  fallback_text: "演练压力读数，仍待现场核验。",
+  spec: {
+    root: "root",
+    elements: {
+      root: {
+        type: "Stack",
+        props: { columns: "one", gap: "normal" },
+        children: ["metrics", "chart", "evidence", "location", "form"]
+      },
+      metrics: {
+        type: "Stack",
+        props: { columns: "two", gap: "compact" },
+        children: ["pressure", "flow"]
+      },
+      pressure: {
+        type: "Metric",
+        props: { label: "压力", value: "0.30", unit: "MPa", source: "演练数据" },
+        children: []
+      },
+      flow: {
+        type: "Metric",
+        props: { label: "流量", value: "18", unit: "m³/h", source: "演练数据" },
+        children: []
+      },
+      chart: {
+        type: "Chart",
+        props: {
+          title: "演练监测趋势",
+          chart_type: "line",
+          x_data: ["08:00", "09:00"],
+          series: [{ name: "压力（MPa）", data: [0.3, 0.28] }, { name: "参考压力（MPa）", data: [0.29, 0.26] }],
+          source: "浏览器验收演练数据"
+        },
+        children: []
+      },
+      evidence: {
+        type: "Evidence",
+        props: {
+          title: "查看演练证据",
+          summary: "仅用于组件验收，不代表已核验现场事实。",
+          source: "浏览器演练",
+          evidence_id: "DEMO-001",
+          observed_at: null,
+          kind: "demo"
+        },
+        children: []
+      },
+      location: {
+        type: "MapLocation",
+        props: {
+          label: "定位演练监测点",
+          layer: "scada",
+          feature_ids: ["DEMO-P001"],
+          source: "演练监测点"
+        },
+        children: []
+      },
+      form: {
+        type: "FollowUpForm",
+        props: {
+          title: "补充核验资料",
+          description: "填写后由你主动发送给 Agent。",
+          fields: [{ name: "location", label: "现场位置", kind: "text", required: true }]
+        },
+        children: []
+      }
+    }
+  }
+};

tests/browser/support/mock-agent-api.ts

@@ -34,6 +34,9 @@ export async function mockAgentApi(page: Page, options: MockAgentApiOptions = {}
     }
 
     const pathname = new URL(route.request().url()).pathname;
+    if (pathname.endsWith("/topics") && route.request().method() === "GET") {
+      await route.fulfill({ headers: corsHeaders, json: { topics: [] } }); return;
+    }
 
     if (pathname.endsWith("/suggestions") && route.request().method() === "POST") {
       await route.fulfill({ headers: corsHeaders, json: {
@@ -94,13 +97,14 @@ export async function mockAgentApi(page: Page, options: MockAgentApiOptions = {}
     const sessionMatch = pathname.match(/\/session\/([^/]+)$/);
     if (sessionMatch && route.request().method() === "GET") {
       const collaboration = sessionMatch[1].startsWith("collaboration-");
+      const stored = options.sessions?.find((session) => (session.session_id ?? session.id) === sessionMatch[1]);
       await route.fulfill({
         headers: corsHeaders,
         json: {
           id: sessionMatch[1],
           session_id: sessionMatch[1],
-          title: collaboration ? "任务协作问答" : "水质投诉事件调查",
-          purpose: collaboration ? "task_collaboration" : "ordinary_chat",
+          title: stored?.title ?? (collaboration ? "任务协作问答" : "水质投诉事件调查"),
+          purpose: stored?.purpose ?? (collaboration ? "task_collaboration" : "ordinary_chat"),
           task_id: collaboration ? sessionMatch[1].slice("collaboration-".length) : undefined,
           status: "active",
           created_at: "2026-09-22T02:00:00Z",

tests/browser/support/reading-geometry.ts

@@ -0,0 +1,20 @@
+import type { Locator, TestInfo } from "@playwright/test";
+
+/** Measure the actual reading surface so density changes can be compared with screenshots. */
+export async function captureReadingGeometry(workspace: Locator, testInfo: TestInfo) {
+  const geometry = await workspace.evaluate((element) => {
+    const scroll = element.querySelector("[data-reading-scroll]")!;
+    const metrics = element.querySelector(".answer-ui-stack-comparison")!;
+    const chart = element.querySelector('.answer-ui-chart [role="img"]')!;
+    const bounds = scroll.getBoundingClientRect();
+    return {
+      viewportWidth: window.innerWidth,
+      readingWidth: Math.round(bounds.width),
+      metricsHeight: Math.round(metrics.getBoundingClientRect().height),
+      chartOffset: Math.round(chart.getBoundingClientRect().top - bounds.top + scroll.scrollTop),
+      horizontalOverflow: document.documentElement.scrollWidth > window.innerWidth,
+    };
+  });
+  await testInfo.attach("reading-geometry", { body: JSON.stringify(geometry, null, 2), contentType: "application/json" });
+  return geometry;
+}

tests/browser/support/responses-fixture.ts

@@ -1,6 +1,6 @@
 // Translate existing UI scenarios into Responses wire fixtures. Production
 // clients accept Responses only; this helper belongs exclusively to tests.
-export function responseFixtureWriter() {
+export function responseFixtureWriter(conversationId?: string) {
   let sequence = 0;
   let id = "resp_browser_fixture";
   let messageId = "msg_browser_fixture";
@@ -13,7 +13,7 @@ export function responseFixtureWriter() {
   return (chunk: Record<string, unknown>) => {
     if (chunk.type === "start") {
       messageId = String(chunk.messageId); id = `resp_${messageId}`;
-      return event("response.created", { response: { id, object: "response", status: "in_progress" } })
+      return event("response.created", { response: { id, object: "response", status: "in_progress", ...(conversationId ? { conversation: { id: conversationId } } : {}) } })
         + event("response.output_item.added", { output_index: 0, item: { type: "message", role: "assistant", id: messageId, content: [] } });
     }
     if (chunk.type === "text-start") {