v12.1.0

What's Changed

• Add typed SDK methods for creating offers, fulfilling listings and offers, and cancelling orders across EVM chains and Solana.
• Preserve exact Solana action response types, including partial transactions used for sponsored fee payers and Jito bundles.
• Cancel rate-limit retry backoff promptly when the caller's AbortSignal fires.
• Preserve signed multipart field names in wallet-auth upload contexts.

Full Changelog: v12.0.1...v12.1.0