fix: recover Robot configuration loading

tests/unit/ai-hardware-routes.test.ts

@@ -326,6 +326,41 @@ describe('AI hardware Host API route', () => {
     expect(hugeResult.payload).toMatchObject({ success: false, status: 502, code: 'AI_HARDWARE_RESPONSE_TOO_LARGE' });
   });
 
+  it('keeps the upstream deadline active while reading a stalled configuration body', async () => {
+    let bodyController: ReadableStreamDefaultController<Uint8Array> | undefined;
+    const fetchImpl = vi.fn<typeof fetch>((_input, init) => {
+      const body = new ReadableStream<Uint8Array>({
+        start(controller) {
+          bodyController = controller;
+          controller.enqueue(new TextEncoder().encode('{"id":"a-1"'));
+          init?.signal?.addEventListener('abort', () => {
+            controller.error(new DOMException('secret stalled body', 'AbortError'));
+          }, { once: true });
+        },
+      });
+      return Promise.resolve(new Response(body, {
+        headers: { 'content-type': 'application/json', etag: '"0"' },
+      }));
+    });
+    const { handler } = setup(fetchImpl);
+    const pending = invoke(handler, 'GET', '/api/works/ai-hardware/agents/a-1');
+    const result = await Promise.race([
+      pending,
+      new Promise<null>((resolve) => setTimeout(() => resolve(null), 100)),
+    ]);
+
+    if (result === null) {
+      bodyController?.close();
+      await pending;
+    }
+    expect(result?.payload).toMatchObject({
+      success: false,
+      status: 504,
+      code: 'AI_HARDWARE_TIMEOUT',
+      retryable: true,
+    });
+  });
+
   it('bounds request bodies and distinguishes unrelated and unknown hardware routes', async () => {
     const { handler, fetchImpl } = setup();
     const unrelated = response();