Update: Multi-Chain Wallet Integration Improvements

[0xLou1s]

Description

Following the successful implementation of the multi-chain wallet integration foundation, this issue focuses on enhancing and refining the wallet connectivity system to provide a seamless, robust, and production-ready experience across both EVM and Substrate ecosystems.

The current implementation supports:

• EVM Chains: Ethereum, Sepolia, Base Sepolia
• Substrate Chains: Polkadot, Kusama, Westend
• Wallet Support: SubWallet, Metamask, Polkadot.js, Talisman, WalletConnect (EVM & Polkadot), Injected Wallets

This update will address technical debt, improve user experience, and add missing features to ensure the wallet integration is production-ready.

Key Improvements

1. Complete EVM Balance Fetching - Implement full balance fetching for EVM wallets using viem (currently commented out in use-wallet.ts)

2. Wallet State Management - Improve wallet state synchronization between SubWallet Connect and Wagmi, add connection status indicators

3. Network Validation - Add network validation before transactions, automatic network detection, and better chain ID mismatch handling

4. Substrate API Reliability - Add connection retry logic, timeout handling, and better error messages for Substrate API connections

5. Chain Configuration - Move hardcoded chain configs to centralized config file, support dynamic chain addition, and environment-based configuration

Reference issue

• Update: AI DeFi Assistant - Conversational DeFi UI with Calltool Support #29

[zxstim]

Hmmm... currently we are not as keen to this and would like to focus more on the EVM side since our main app is handling the crosschain feature itself. There is little for you to do after bridging to Bifrost as it is an app chain.

But take a look at our new vETH mint for integration and growth.