feat: add EVM testnet chains (sepolia, base-sepolia, arbitrum-sepolia, optimism-sepolia, polygon-amoy) - #213

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ygd58:feat/add-evm-testnet-chains

Commits on Apr 19, 2026

feat: add EVM testnet chains (sepolia, base-sepolia, arbitrum-sepolia, optimism-sepolia, polygon-amoy)
ygd58
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Commits on Jun 10, 2026

fix: cargo fmt and add testnet entries to supported-chains docs
ygd58
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