feat(agent): align investigation reports and selected context

tests/product/operationalTaskClient.test.ts

@@ -51,6 +51,21 @@ afterEach(() => {
 });
 
 describe("OperationalTaskClient", () => {
+  it("requests a selected report while retaining the current task snapshot", async () => {
+    let requestedUrl = "";
+    globalThis.fetch = (async (input: Parameters<typeof fetch>[0]) => {
+      requestedUrl = String(input);
+      return Response.json({ task: { ...task, execution_generation: 2, latest_plan: null,
+        latest_report: { revision: 8, execution_generation: 2 }, evidence: [], actions: [], permissions: {} },
+        approved_data_scopes: [], selected_report: { revision: 3, execution_generation: 1, report: { title: "上一轮报告" } } });
+    }) as unknown as typeof fetch;
+    bindOperationalTaskCredential("runtime-1", { authorization: "Bearer transient-secret", projectId: "project-1" });
+    const client = new OperationalTaskClient("http://server.test");
+    const context = await client.getAgentContext("runtime-1", taskId, 3);
+    expect(new URL(requestedUrl).searchParams.get("report_revision")).toBe("3");
+    expect(context.selected_report?.execution_generation).toBe(1);
+    expect(context.task.execution_generation).toBe(2);
+  });
   it("matches proposed action payloads to the generated Server contract", () => {
     const common = {
       request_id: "60000000-0000-4000-8000-000000000001",
@@ -187,6 +202,7 @@ describe("OperationalTaskClient", () => {
         sourceSessionId: "session-1",
         report: {
           title: "失败",
+          stage: "final", outcome: "concluded", stop_reason: null, data_gaps: [],
           current_conclusion: "租约已失效",
           conclusion_boundary: "未继续写回",
           evidence_refs: [],