KAVA EVM does not support EIP-1559 dynamic fee transactions.
Changed from EIP-1559 (Type 2) to Legacy (Type 0) format:
- prepareTransaction: Use [nonce, gasPrice, gasLimit, to, value, data, chainId, 0, 0]
- finalizeTransaction: Use EIP-155 v calculation (chainId * 2 + 35 + recoveryId)
- Remove type prefix (0x02) as Legacy transactions don't need it
- Update Home.tsx and CoSignSession.tsx to use gasPrice instead of maxFeePerGas
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
hailin
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