fix: isolate concurrent OpenCode chat runs

tests/unit/opencode-client.test.ts

@@ -113,6 +113,62 @@ describe('opencode client', () => {
     );
   });
 
+  it('lists the live Agent registry scoped to the selected folder', async () => {
+    const agents = [{ name: 'game-design', description: '游戏设计伙伴' }];
+    const fetchImpl = vi.fn(async () => {
+      return new Response(JSON.stringify(agents), {
+        headers: { 'Content-Type': 'application/json' },
+      });
+    });
+    const client = createOpencodeClient({
+      baseUrl: 'http://127.0.0.1:4096',
+      directory: 'D:/work/app',
+      fetchImpl,
+    });
+
+    await expect(client.listAgents()).resolves.toEqual(agents);
+    expect(fetchImpl).toHaveBeenCalledWith(
+      'http://127.0.0.1:4096/agent?directory=D%3A%2Fwork%2Fapp',
+      expect.objectContaining({
+        headers: expect.objectContaining({
+          'Content-Type': 'application/json',
+          'x-opencode-directory': encodeURIComponent('D:/work/app'),
+        }),
+      }),
+    );
+  });
+
+  it('forwards AbortSignal to bounded runtime config, Agent, prompt, command, and summarize requests', async () => {
+    const fetchImpl = vi.fn(async (url: string | URL | Request) => {
+      const pathname = new URL(String(url)).pathname;
+      if (pathname === '/agent') return new Response('[]');
+      if (pathname === '/config') return new Response('{}');
+      if (pathname.endsWith('/prompt_async')) return new Response(null, { status: 204 });
+      return new Response('{}');
+    });
+    const client = createOpencodeClient({
+      baseUrl: 'http://127.0.0.1:4096',
+      directory: 'D:/work/app',
+      fetchImpl,
+    });
+    const controller = new AbortController();
+    const request = { signal: controller.signal };
+
+    await client.getConfig(request);
+    await client.listAgents(request);
+    await client.promptSessionAsync('ses_1', { text: 'Ship it' }, request);
+    await client.executeSessionCommand('ses_1', { command: 'review', arguments: '' }, request);
+    await client.summarizeSession('ses_1', {
+      providerID: 'niancode-user-models',
+      modelID: 'qwen3.7-plus',
+    }, request);
+
+    expect(fetchImpl).toHaveBeenCalledTimes(5);
+    for (const [, init] of fetchImpl.mock.calls) {
+      expect(init?.signal).toBe(controller.signal);
+    }
+  });
+
   it('posts a text message to a session scoped to the selected folder', async () => {
     const fetchImpl = vi.fn(async () => {
       return new Response(JSON.stringify({ id: 'msg_1', role: 'user' }), {