Add root GET endpoint for testing FastAPI serving

modal_whisper_app.py

@@ -49,6 +49,10 @@ app = modal.App(name="video-analysis-gradio-pipeline") # New app name, using App
 
 fastapi_app = FastAPI() # Initialize FastAPI app
 
+@fastapi_app.get("/")
+async def read_root():
+    return {"message": "FastAPI root is alive!"}
+
 # Define allowed origins for CORS
 origins = [
     "https://agents-mcp-hackathon-video-mcp.hf.space", # Your Hugging Face Space