[Feature Request] UI and cross-chain tooling to revoke compromised passkey owners and backup singers SPs

[mhawash]

Description

Currently, when recovering a Coinbase Smart Wallet and generating a new passkey, the old passkey remains an active owner on the contract. There is no user-facing interface to revoke compromised or obsolete owners.

The Problem

If a passkey was generated in a password manager that later becomes compromised, the user's funds are at immediate risk. Revoking the compromised key on-chain is currently a significant UX hurdle:

• There is no UI to call removeOwnerAtIndex.
• Attempting this manually via a block explorer (e.g., BaseScan) yields the error:

  "Self calls are not allowed by the base app signing dialog."

• The workaround requires exporting the underlying signer to a standard EOA wallet to interact with the block explorer.
• Because the wallet is multi-chain, the user must manually replay the removal transaction across every supported network (Base, Optimism, Arbitrum, etc.) to fully secure their assets.

Proposed Solution

Short-term

Provide an official open-source script or developer guide to securely execute and broadcast removeOwnerAtIndex across all networks simultaneously.

Long-term

Implement a "Manage Devices / Keys" dashboard within the Smart Wallet UI that allows users to seamlessly revoke old owners and automatically handles cross-chain signature replay.