add LangSmith observability, partner endpoint callout, and QA fixes to getting started notebook (#137)

* feat: add LangSmith observability section, partner endpoint callout, and QA fixes to getting started notebook

Author: aadesoba-nv

docs/notebooks/0_Getting_Started_with_AIQ.ipynb

@@ -698,29 +698,66 @@
    "cell_type": "markdown",
    "id": "mp3fa80d86",
    "metadata": {},
+   "source": "**3. Add LangSmith tracing to your config**\n\nRun the cell below to automatically update `config_simple_researcher.yml` with LangSmith tracing:"
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "ls_config_writer",
+   "metadata": {},
+   "outputs": [],
    "source": [
-    "**3. Add LangSmith tracing to your config**\n",
+    "config_path = \"config_simple_researcher.yml\"\n",
     "\n",
-    "Add the `tracing` block under `general.telemetry` in your config file (e.g. `config_simple_researcher.yml`):\n",
+    "with open(config_path) as f:\n",
+    "    content = f.read()\n",
     "\n",
-    "```yaml\n",
-    "general:\n",
-    "  use_uvloop: true\n",
-    "  telemetry:\n",
-    "    logging:\n",
-    "      console:\n",
-    "        _type: console\n",
-    "        level: WARN\n",
-    "    tracing:\n",
-    "      langsmith:\n",
-    "        _type: langsmith\n",
-    "        project: langsmith-project\n",
-    "        api_key: ${LANGSMITH_API_KEY}\n",
-    "```\n",
-    "\n",
-    "Then re-run the agent as before. Traces will appear in your LangSmith project dashboard at [smith.langchain.com](https://smith.langchain.com/)."
+    "if \"tracing:\" not in content:\n",
+    "    content = content.replace(\n",
+    "        \"        level: INFO\\n\",\n",
+    "        \"        level: INFO\\n\\n\"\n",
+    "        \"    tracing:\\n\"\n",
+    "        \"      langsmith:\\n\"\n",
+    "        \"        _type: langsmith\\n\"\n",
+    "        \"        project: ${LANGSMITH_PROJECT}\\n\"\n",
+    "        \"        api_key: ${LANGSMITH_API_KEY}\\n\",\n",
+    "        1,\n",
+    "    )\n",
+    "    with open(config_path, \"w\") as f:\n",
+    "        f.write(content)\n",
+    "    print(f\"Tracing config added to {config_path}\")\n",
+    "else:\n",
+    "    print(\"Tracing config already present — no changes made.\")"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "id": "ls_verify_md",
+   "metadata": {},
+   "source": "**4. Run the agent and verify traces**\n\nRe-run the agent with the updated config:"
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "ls_run_agent",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "!.venv/bin/nat run --config_file config_simple_researcher.yml --input \"What is NVIDIA Spectrum-X?\" | sed 's/\\\\n/\\n/g'"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "ls_check_md",
+   "metadata": {},
+   "source": "After the run completes, go to [smith.langchain.com](https://smith.langchain.com/), open your project, and you should see a new trace for the query above. Click into it to explore the agent's steps, LLM calls, and tool usage."
+  },
+  {
+   "cell_type": "markdown",
+   "id": "together_lightweight_md",
+   "metadata": {},
+   "source": "## (Optional) Use a Partner LLM Endpoint\n\nYou can swap the LLM provider in `config_simple_researcher.yml` with any OpenAI-compatible API.\n\nFor example, to use [Together.ai](https://www.together.ai/) with the [Nemotron model](https://www.together.ai/models/nvidia-nemotron-3-nano) — sign up at [together.ai](https://www.together.ai/), generate an API key, and update the three Nemotron LLM blocks (`nemotron_llm_intent`, `nemotron_llm`, `nemotron_llm_deep`) following this pattern:\n\n```yaml\nllms:\n  nemotron_llm:\n    _type: openai\n    model_name: nvidia/NVIDIA-Nemotron-3-Nano-30B-A3B-BF16\n    base_url: \"https://api.together.xyz/v1\"\n    api_key: ${TOGETHER_API_KEY}\n    temperature: 0.1\n    top_p: 0.3\n    max_tokens: 16384\n    num_retries: 5\n```\n\nKey changes from the default NIM config:\n- `_type: nim` → `_type: openai`\n- `base_url` → partner endpoint URL\n- `api_key` → your `TOGETHER_API_KEY`\n- Remove `chat_template_kwargs: enable_thinking: true` (NIM-specific)\n\n> More provider guides coming soon."
+  },
   {
    "cell_type": "markdown",
    "id": "ed4b4431",