Fix demo login credentials and form encoding

backend/app/routes/auth.py

@@ -2,13 +2,17 @@ from datetime import timedelta
 from fastapi import APIRouter, Depends, HTTPException, status
 from fastapi.security import OAuth2PasswordRequestForm
 from app.auth import ACCESS_TOKEN_EXPIRE_MINUTES, Token, authenticate_user, create_access_token, get_current_active_user
-router = APIRouter(prefix='/auth', tags=['auth'])
-@router.post('/token', response_model=Token)
+
+router = APIRouter(prefix="/auth", tags=["auth"])
+
+@router.post("/token", response_model=Token)
 async def login(form_data: OAuth2PasswordRequestForm = Depends()):
     user = authenticate_user(form_data.username, form_data.password)
-    if not user: raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail='Incorrect username or password')
-    access_token = create_access_token({'sub': user.username, 'role': user.role}, timedelta(minutes=ACCESS_TOKEN_EXPIRE_MINUTES))
+    if not user:
+        raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Incorrect username or password")
+    access_token = create_access_token({"sub": user.username, "role": user.role}, timedelta(minutes=ACCESS_TOKEN_EXPIRE_MINUTES))
     return Token(access_token=access_token)
-@router.get('/me')
+
+@router.get("/me")
 async def me(current_user=Depends(get_current_active_user)):
-    return {'username': current_user.username, 'role': current_user.role, 'disabled': current_user.disabled}
+    return {"username": current_user.username, "role": current_user.role, "disabled": current_user.disabled}