This PR adds a decentralized payment gateway feature using the Solana blockchain and Anchor framework. The gateway allows users to transfer SOL between wallets by entering a recipient's address (UPI ID mapped to Solana) and an amount. The backend is powered by a Solana smart contract that handles the transfer, while the frontend provides a simple UI for input and transaction processing.
This PR adds a decentralized payment gateway feature using the Solana blockchain and Anchor framework. The gateway allows users to transfer SOL between wallets by entering a recipient's address (UPI ID mapped to Solana) and an amount. The backend is powered by a Solana smart contract that handles the transfer, while the frontend provides a simple UI for input and transaction processing.
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