Gated_OpenSea_Trading

Implements a Moca ID–gated workflow for OpenSea trading operations using opensea-mcp and HTTP_Execute. For all state-changing OpenSea calls (for example, fulfill_order), the skill enforces prior Moca ID (DID) verification and wallet-ownership proof via a verification_token. If the token is missing, the skill initiates the Moca verification challenge-and-signature flow but will not perform the trade until a valid token is supplied.