Support for Hedera Network in WalletConnect Integration for Blade Wallet

[adjuric-symphony]

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Describe the bug

Description

When using WalletConnect with wagmi, Blade Wallet is listed as an option. It only seems to allow connections to Ethereum Mainnet and Sepolia, with no option available for the Hedera network.

The current implementation uses the eip155 namespace by default, which is only compatible with Ethereum-based chains:

wagmi/packages/connectors/src/walletConnect.ts

Line 104 in 5275810

const NAMESPACE = 'eip155'

However, the Hedera network (per HIP-30) uses the hedera:<network> format, such as hedera:testnet or hedera:296 for the testnet. Currently, this results in Blade Wallet only connecting to Ethereum Mainnet or Sepolia, with no option for the Hedera network.

Proposed Change

To make the WalletConnect integration with Hedera work seamlessly, I propose updating the default namespace to include a configurable namespace option (e.g., hedera). Specifically, the chain ID for Hedera should follow the format hedera:<network>.

For example:

For Hedera Testnet: hedera:testnet or hedera:296
This would align with the standard HIP-30 and allow for proper connectivity to the Hedera network in Blade Wallet.

Additional Notes:

It would be great if the session proposal logic could be updated to support multiple namespaces (e.g., eip155, hedera) and allow users to specify the correct chain format for their network.

Link to Minimal Reproducible Example

No response

Steps To Reproduce

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What Wagmi package(s) are you using?

wagmi

Wagmi Package(s) Version(s)

2.14.9

Viem Version

2.22.21

TypeScript Version

5.7.3

Anything else?

No response