gcloud CLI deployment example code - fix required

[QAInsights]

Describe the bug
A clear and concise description of what the bug is.

To Reproduce
Steps to reproduce the behavior:

1. Follow the steps outlined to deploy the app in Google Cloud
2. The app will not start

Expected behavior
The app should start successfully to serve the requests.

Screenshots
NA

Desktop (please complete the following information):

• OS: macOS
• Python version(python -V): 3.11
• ADK version(pip show google-adk): 0.1.0

Potential Fix

• It should be APP_DIR in agent_dir. Here is the working repo.
• Also the entry point should be CMD ["python", "main.py"]

import os

import uvicorn
from fastapi import FastAPI
from google.adk.cli.fast_api import get_fast_api_app

# Get the directory where main.py is located
APP_DIR = os.path.dirname(os.path.abspath(__file__))
# Example session DB URL (e.g., SQLite)
SESSION_DB_URL = "sqlite:///./sessions.db"
# Example allowed origins for CORS
ALLOWED_ORIGINS = ["http://localhost", "http://localhost:8080", "*"]
# Set web=True if you intend to serve a web interface, False otherwise
SERVE_WEB_INTERFACE = True

# Call the function to get the FastAPI app instance
# Ensure the agent directory name ('capital_agent') matches your agent folder
app: FastAPI = get_fast_api_app(
    agent_dir=APP_DIR,
    session_db_url=SESSION_DB_URL,
    allow_origins=ALLOWED_ORIGINS,
    web=SERVE_WEB_INTERFACE,
)

# You can add more FastAPI routes or configurations below if needed
# Example:
# @app.get("/hello")
# async def read_root():
#     return {"Hello": "World"}

if __name__ == "__main__":
    # Use the PORT environment variable provided by Cloud Run, defaulting to 8000
    uvicorn.run(app, host="0.0.0.0", port=int(os.environ.get("PORT", 8000)))