fix(ts): forward timeout config to OpenAI client in JS OSS LLM providers (#4770)

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-authored-by: Kartik <kartik.labhshetwar@mem0.ai>

mem0-ts/src/oss/tests/openai-structured-llm.test.ts

@@ -0,0 +1,59 @@
+/// <reference types="jest" />
+/**
+ * OpenAI Structured LLM — unit tests (mocked openai).
+ *
+ * Sibling fix for #4707: OpenAIStructuredLLM had the same timeout gap.
+ */
+
+let capturedConstructorArgs: any;
+const mockCreate = jest.fn();
+
+jest.mock("openai", () => {
+  return jest.fn().mockImplementation((args: any) => {
+    capturedConstructorArgs = args;
+    return {
+      chat: { completions: { create: mockCreate } },
+    };
+  });
+});
+
+import { OpenAIStructuredLLM } from "../src/llms/openai_structured";
+
+describe("OpenAIStructuredLLM (unit)", () => {
+  beforeEach(() => {
+    capturedConstructorArgs = undefined;
+    mockCreate.mockClear();
+  });
+
+  it("forwards timeout to the OpenAI client constructor", () => {
+    new OpenAIStructuredLLM({
+      apiKey: "test-key",
+      timeout: 15000,
+    });
+
+    expect(capturedConstructorArgs).toMatchObject({
+      apiKey: "test-key",
+      timeout: 15000,
+    });
+  });
+
+  it("forwards timeout: 0 to the OpenAI client (explicit zero is valid)", () => {
+    new OpenAIStructuredLLM({
+      apiKey: "test-key",
+      timeout: 0,
+    });
+
+    expect(capturedConstructorArgs.timeout).toBe(0);
+  });
+
+  it("omits timeout from the OpenAI client when not configured", () => {
+    new OpenAIStructuredLLM({
+      apiKey: "test-key",
+    });
+
+    expect(capturedConstructorArgs).toMatchObject({
+      apiKey: "test-key",
+    });
+    expect(capturedConstructorArgs).not.toHaveProperty("timeout");
+  });
+});