chore: use dotenv for runnable demo locally

Author: ranst91

integrations/llama-index/python/examples/pyproject.toml

@@ -16,6 +16,7 @@ dependencies = [
     "uvicorn>=0.27.0",
     "fastapi>=0.100.0",
     "httpx>=0.24.0",
+    "dotenv>=0.9.9"
 ]
 authors = [
     { name = "Logan Markewich", email = "[email protected]" },

integrations/llama-index/python/examples/server/__init__.py

@@ -1,6 +1,9 @@
 import os
 import uvicorn
 from fastapi import FastAPI
+from dotenv import load_dotenv
+
+load_dotenv()
 
 from .routers.agentic_chat import agentic_chat_router
 from .routers.human_in_the_loop import human_in_the_loop_router