[FEATURE] Add OpenAI-Compatible LoRA Adapter Selection (#11570)

docs/advanced_features/lora.ipynb

@@ -59,6 +59,17 @@
     "### Serving Single Adaptor"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "**Note:** SGLang supports LoRA adapters through two APIs:\n",
+    "\n",
+    "1. **OpenAI-Compatible API** (`/v1/chat/completions`, `/v1/completions`): Use the `model:adapter-name` syntax. See [OpenAI API with LoRA](../basic_usage/openai_api_completions.ipynb#Using-LoRA-Adapters) for examples.\n",
+    "\n",
+    "2. **Native API** (`/generate`): Pass `lora_path` in the request body (shown below)."
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -379,6 +390,15 @@
     "print(f\"Output from lora1 (updated): \\n{response.json()[1]['text']}\\n\")"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### OpenAI-compatible API usage\n",
+    "\n",
+    "You can use LoRA adapters via the OpenAI-compatible APIs by specifying the adapter in the `model` field using the `base-model:adapter-name` syntax (for example, `qwen/qwen2.5-0.5b-instruct:adapter_a`). For more details and examples, see the “Using LoRA Adapters” section in the OpenAI API documentation: [openai_api_completions.ipynb](../basic_usage/openai_api_completions.ipynb).\n"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,