Add wallet_addEthereumChain fallback for unknown chains#4
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Add wallet_addEthereumChain fallback for unknown chains#4
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When MetaMask doesn't have a chain configured, wallet_switchEthereumChain fails with error code 4902. Now we catch this error and add the chain using wallet_addEthereumChain with predefined configurations for: - Base Mainnet (8453) - Base Sepolia (84532) - Ethereum Mainnet (1) - Ethereum Sepolia (11155111) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Summary
wallet_switchEthereumChainfails with error code 4902, now callswallet_addEthereumChainto add the chain firstTest plan
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