Add robots.txt disallowing all scrapers

src/meal_manager/main.py

@@ -7,7 +7,7 @@ from typing import Annotated
 
 import starlette.status as status
 from fastapi import Depends, FastAPI, HTTPException, Request, Response
-from fastapi.responses import RedirectResponse
+from fastapi.responses import RedirectResponse, FileResponse
 from fastapi.staticfiles import StaticFiles
 from fastapi.templating import Jinja2Templates
 from sqlalchemy import create_engine, select
@@ -109,6 +109,11 @@ async def index(request: Request, session: SessionDep, user: UserDep):
     )
 
 
+@app.get("/robots.txt")
+async def robots_txt():
+    return FileResponse("src/meal_manager/static/robots.txt", media_type="text/plain")
+
+
 @app.get("/past_events")
 async def past_events(request: Request, session: SessionDep):
     now = datetime.now()