Meta Game-Audit

State variables that never change should be declared as `constant` to save gas. ```solidity=17 uint256 public supply = 13500000 * (10 ** 18); ``` - `supply` should be declared `constant`.

The contract is serving as the underlying entity to interact with one or more third party protocols, including `ammRouter`, `_ammPair`, `feeReceiver`, etc.. The scope of the audit treats third party entities as black boxes and assumes their functional correctness. However, in the real world, third parties can be compromised and this may lead to lost or stolen assets. In addition, upgrades of third parties can possibly create severe impacts, such as increasing fees of third parties, migrating to new LP pools, etc.