fix(ui): LongBridge 超时/未知状态给出专属处置建议，横幅不再误报「需要安装」

apps/electron/src/main/kernelHost.test.ts

@@ -511,6 +511,57 @@ describe('AgentKernelHost', () => {
     host.dispose();
   });
 
+  it('leaves the LongBridge action empty while the CLI is available', async () => {
+    const host = new AgentKernelHost();
+
+    const result = await host.getLongBridgeStatus();
+
+    expect(result.status).toBe('available');
+    expect(result.action).toBeUndefined();
+    host.dispose();
+  });
+
+  it('maps a LongBridge timeout to a retry action, not an install prompt', async () => {
+    const host = new AgentKernelHost();
+    const marketData = lastMarketData as unknown as {
+      getLongBridgeStatus: () => Promise<Record<string, unknown>>;
+    };
+    marketData.getLongBridgeStatus = async () => ({
+      installed: true,
+      authed: true,
+      available: false,
+      status: 'timeout',
+      error: { code: 'LONGBRIDGE_TIMEOUT', message: 'LongBridge CLI timed out.' },
+    });
+
+    const result = await host.getLongBridgeStatus();
+
+    expect(typeof result.action).toBe('string');
+    expect(result.action).toContain('timed out');
+    expect(result.action).not.toContain('Install the LongBridge CLI');
+    host.dispose();
+  });
+
+  it('maps an unrecognised LongBridge failure to its own action', async () => {
+    const host = new AgentKernelHost();
+    const marketData = lastMarketData as unknown as {
+      getLongBridgeStatus: () => Promise<Record<string, unknown>>;
+    };
+    marketData.getLongBridgeStatus = async () => ({
+      installed: true,
+      authed: false,
+      available: false,
+      status: 'unknown',
+      error: { code: 'LONGBRIDGE_UNKNOWN', message: 'Unexpected failure.' },
+    });
+
+    const result = await host.getLongBridgeStatus();
+
+    expect(typeof result.action).toBe('string');
+    expect(result.action).not.toContain('Install the LongBridge CLI');
+    host.dispose();
+  });
+
   it('wraps market data errors into IPC results', async () => {
     const host = new AgentKernelHost();
     const { toIpcResult } = await import('./kernelHost.ts');

apps/electron/src/main/kernelHost.ts

@@ -2591,6 +2591,10 @@ function getLongBridgeStatusAction(status: string) {
       return 'Run longbridge auth login to authenticate the LongBridge CLI.';
     case 'rate_limited':
       return 'LongBridge is rate-limited; market data requests are paused. Try again later.';
+    case 'timeout':
+      return 'LongBridge CLI timed out; market data requests are paused. Check your network or proxy and retry.';
+    case 'unknown':
+      return 'LongBridge CLI reported an unexpected error; run `longbridge --version` in a terminal to verify the install and retry.';
     default:
       return undefined;
   }

packages/ui/src/components/layout/AppShell.tsx

@@ -70,7 +70,10 @@ const LongBridgeBanner: React.FC = () => {
 
   const message = error ?? status?.message ?? 'LongBridge CLI status is unavailable.';
   const action = status?.action ?? 'Install LongBridge CLI and run longbridge auth login.';
-  const title = status?.status === 'rate_limited' ? 'LongBridge paused: ' : 'LongBridge setup needed: ';
+  // `timeout` is a transient pause, not a setup problem: the CLI is installed
+  // and authenticated, the call just did not come back in time.
+  const paused = status?.status === 'rate_limited' || status?.status === 'timeout';
+  const title = paused ? 'LongBridge paused: ' : 'LongBridge setup needed: ';
 
   return (
     <div className="folio-banner border-b px-4 py-2">