Qian V2 Contracts

Onchain token launch with permanently locked liquidity and DEX routing
(Uniswap v3 + v4). No admin keys, no mint/blacklist. MIT licensed.
Deployed addresses in README.

dtm-v4/contracts/errors/Errors.sol

@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.24;
+
+error BadRouterConfig();
+error DeployDisabled();
+error InsufficientDeployFee();
+error DeployFeeTooHigh();
+error InvalidFeeVault();
+error InvalidConfig();
+error InvalidReceiver();
+error InvalidTickRange();
+error NotController();
+error Unauthorized();
+error TransferFailed();
+error InsufficientTokenBalance(uint256 required, uint256 available);
+
+error HookNotApproved();
+error HookAlreadyConfigured();
+error InvalidTaxRate();
+error InvalidThreshold();
+error InvalidPoolFee();
+error InsufficientOutput();