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- wallet.js: fetch correct EIP-1559 fees from the network (Amoy/Polygon Bor enforce a ~25-30 gwei priority floor MetaMask's estimate misses) via new /api/gas; hard chain-guard before signing so a tx never lands on the wrong network; accept the wallet's usual networks in AppKit so its modal stops looping and drive add+switch ourselves. - chain.js: suggestedFees() from eth_maxPriorityFeePerGas + base fee. - Dashboard: move the Site links (Ad packages / Live ledger / The contract) out of the sidebar into a page footer; hide the sidebar scrollbar. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>