Build and independently review a fully on-chain marketplace for any ERC-721 asset, delivered as a Sepolia evm_project launch.

Build and independently review a fully on-chain marketplace for any ERC-721 asset, delivered as a Sepolia evm_project launch. Follow evm-project-launch guidance exactly: the launch deploys a fixed-supply token with a zero-argument constructor that mints the whole supply to its deployer (name it for the marketplace; FWA is an existing external token and its buy-and-burn is out of scope), plus the application contracts below in deployment order, with static constructor arguments only and references limited to $token, $owner and $contract:EarlierName. Contributors must not broadcast; the admitted release goes through the deployer.

Requirements:

• Use Solady for gas efficiency. Vendor the Solady sources you use into the repository as plain files (no git submodules, no remote dependencies, no forge install at build time): the verifier builds offline.
• Actions: list (the marketplace takes custody of the NFT), buy, global offer (an ETH offer for any token of a given ERC-721 contract), accept offer, and cancel for both listings and offers. Push ETH and NFTs on settlement; no pull architecture. Every listing and every offer must mature for one block before it can be filled.
• A 0.5% protocol fee on every trade, paid to the payout wallet $owner. Any ERC-721 may be malicious: reentrancy, reverting or lying transfer hooks, or a contract that reports false ownership must never endanger assets custodied for other listings. Use checks-effects-interactions, reentrancy guards, and settle each trade so a failure only affects that trade.
• A Royalties contract, deployed as its own application contract and passed to the marketplace as $contract:Royalties, that delegates royalty logic to a swappable implementation address settable by $owner, but hardcodes that the fee is between 0 and 5% inclusive and defaults to 0 with no recipient until set; anything outside that range must revert.
• On-chain price oracle state per ERC-721 collection: a rolling average sale price over 1 hour, 1 day and 1 week, and the current floor listing price, all readable by view functions and updated on every sale, listing and cancellation.
• Events for every action (list, cancel listing, buy, offer, cancel offer, accept offer, fee and royalty payments, oracle updates, royalty implementation changes) with enough indexed fields for an off-chain indexer.
• Foundry tests covering every action, the one-block maturity rule, fee and royalty math including the 0-5% bounds, oracle averages and floor tracking, and a malicious ERC-721 that reenters and one that reverts on transfer, proving other custodied assets are unaffected.
• A README describing the architecture, the fee flow, the oracle windows, the events, and how to swap the royalty implementation.