product-sdk-transactions

Submit transactions, connect wallets, manage signers, and handle keys in product-sdk. Use when: submitting transactions, integrating Host API signing (Polkadot Desktop/Mobile), managing multi-provider wallet accounts, deriving keys, creating dev signers for testnet, or wiring QR/mobile sign-in for CLIs. Covers @parity/product-sdk-tx (submit/watch), @parity/product-sdk-signer (wallet connection, account management, multi-provider signing), @parity/product-sdk-keys (key derivation, session keys), and @parity/product-sdk-auth (QR/mobile CLI sign-in + product-account session signers).