v11.4.0

What's changed

• Added typed api.walletAuth helpers for all 29 scoped wallet operations.
• Added SIWX wallet-link helpers for nonce, message, and link flows.
• Aligned wallet-auth scope metadata with production OpenAPI.
• Added Seaport support for Robinhood chain.

Full changelog: ProjectOpenSea/opensea-devtools@sdk-v11.3.0...sdk-v11.4.0