增加流式信息中断处理机制

src/lib/chatStream.test.ts

@@ -1,4 +1,9 @@
-import { abortAgentChat, forkAgentChat, streamAgentChat } from "./chatStream";
+import {
+  abortAgentChat,
+  forkAgentChat,
+  resumeAgentChatStream,
+  streamAgentChat,
+} from "./chatStream";
 import { ReadableStream } from "stream/web";
 import { TextEncoder, TextDecoder } from "util";
 
@@ -76,6 +81,51 @@ describe("streamAgentChat", () => {
     ]);
   });
 
+  it("parses state events from a resumed stream", async () => {
+    apiFetch.mockResolvedValue({
+      ok: true,
+      body: makeStream([
+        'event: state\ndata: {"session_id":"s1","messages":[{"id":"a1","role":"assistant","content":"已输出"}],"is_streaming":true,"run_status":"running"}\n\n',
+        'event: token\ndata: {"session_id":"s1","content":"继续"}\n\n',
+        'event: done\ndata: {"session_id":"s1"}\n\n',
+      ]),
+    });
+
+    const events: Array<{
+      type: string;
+      sessionId?: string;
+      messages?: unknown[];
+      isStreaming?: boolean;
+      runStatus?: string;
+      content?: string;
+    }> = [];
+
+    await resumeAgentChatStream({
+      sessionId: "s1",
+      onEvent: (event) => events.push(event),
+    });
+
+    expect(apiFetch).toHaveBeenCalledWith(
+      expect.stringContaining("/api/v1/agent/chat/session/s1/stream"),
+      expect.objectContaining({
+        method: "GET",
+        projectHeaderMode: "include",
+        skipAuthRedirect: true,
+      }),
+    );
+    expect(events).toEqual([
+      {
+        type: "state",
+        sessionId: "s1",
+        messages: [{ id: "a1", role: "assistant", content: "已输出" }],
+        isStreaming: true,
+        runStatus: "running",
+      },
+      { type: "token", sessionId: "s1", content: "继续" },
+      { type: "done", sessionId: "s1" },
+    ]);
+  });
+
   it("parses progress events", async () => {
     apiFetch.mockResolvedValue({
       ok: true,