Redirect root to FastAPI docs (/docs)

app.py

@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 from fastapi import FastAPI, HTTPException
+from fastapi.responses import RedirectResponse
 from pydantic import BaseModel, Field
 
 from rag.chain import aanswer
@@ -30,6 +31,12 @@ async def health() -> dict[str, str]:
     return {"status": "ok"}
 
 
+@app.get("/", include_in_schema=False)
+async def root() -> RedirectResponse:
+    """Redirect root to the Swagger UI so Spaces shows the API docs at '/'."""
+    return RedirectResponse(url="/docs")
+
+
 @app.post("/chat", response_model=ChatResponse)
 async def chat(payload: ChatRequest) -> ChatResponse:
     try: