Phantom Solana Provider API
Solana wallet provider injected at window.phantom.solana exposing connect, disconnect, signMessage, signIn (Sign-In With Solana), signTransaction, signAllTransactions, and signAndSendTransaction. Implements the Solana Wallet Standard so dApps can also integrate through @solana/wallet-adapter. Supports versioned transactions, priority fees, Token-2022 extensions, and Solana Actions & Blinks. Emits connect, disconnect, and accountChanged events; exposes isPhantom, publicKey, and isConnected properties.