Incorrect Confidence Calculation in Ticket Minting

In the calculateTicketsToMint function of the MonadexV1Library contract, there is a critical error in the calculation of the confidence value. The function is using _pythPrice.price instead of _pythPrice.conf for the confidence calculation. This mistake leads to an incorrect subtraction of the confidence from the price, resulting in zero or negative ticket amounts.

Incorrect code:

uint256 confidence = _pythPrice.expo < 0
    ? uint256(uint64(_pythPrice.price)) * decimals / 10 ** uint256(uint32(-1 * _pythPrice.expo))
    : uint256(uint64(_pythPrice.price)) * decimals * 10 ** uint256(uint32(-1 * _pythPrice.expo));

The current implementation:

uint256 ticketsToMint = (price - confidence) * _amount / _pricePerTicket;

The function will always calculate zero or negative tickets to mint, causing all ticket purchase transactions to revert with MonadexV1Raffle__ZeroTickets error. The raffle system becomes non-functional as no user can purchase tickets.

Correct code should use _pythPrice.conf:

uint256 confidence = _pythPrice.expo < 0
    ? uint256(uint64(_pythPrice.conf)) * decimals / 10 ** uint256(uint32(-1 * _pythPrice.expo))
    : uint256(uint64(_pythPrice.conf)) * decimals * 10 ** uint256(uint32(-1 * _pythPrice.expo));