Add WalletConnect

[jvonasek]

Description

Add support for connecting wallets via WalletConnect (Reown).

Expected Behavior

Users can connect their wallets using WalletConnect-compatible mobile wallets via QR code.

A single WalletConnect tile in the wallet selection modal should support both:

• EVM wallets (e.g., MetaMask)
• Polkadot wallets (e.g., Nova)

Functional Requirements

• WalletConnect connection via QR code.
• Session establishment and wallet address returned to the dApp.
• Session persistence (after page refresh) and proper disconnect handling (from within dApp and mobile app)

Transaction Support

The following transactions must work via WalletConnect:

Hydration transactions

• Standard Hydration transactions
• EVM Transactions using EVM Permit
• EVM Transactions using WETH as FPA

XCM transactions

• All supported chains, except Myth (unsupported address space)

[hudepe-cl]

Tested on preview - there is an issue when you connect with MetaMask and reload the page

Screen.Recording.2026-04-02.at.11.59.19.mov

[jvonasek]

@hudepe-cl it should be working now for MetaMask, please retest

[hudepe-cl]

Tested on preview - the issue with MetaMask has been fixed. I also tested the functionality in Safari and Firefox browsers.