77wallet

This release focuses on upgrading merchant-side fund management capabilities with the launch of the API Wallet system: * Introduced the API Wallet module, enabling merchants to manage accounts and funds via APIs * Support for sub-account wallets, meeting the needs of fund segregation and multi-scenario account management * Added payout wallets, standardizing payout flows and improving fund allocation efficiency * Enhanced deposit and withdrawal capabilities, completing the end-to-end fund flow lifecycle * Support for fund consolidation (sweeping), enabling automatic aggregation of sub-account balances to the master account * Optimized fund flow architecture, improving overall processing efficiency and success rate Security Mechanism: * Sub-account wallets and payout wallets are created and managed on the mobile client (App) * Private keys are securely stored on the local device and are never uploaded to the server * All transaction signing is performed locally, ensuring full control of funds by merchants * The platform does not access private keys or participate in the signing process, effectively reducing custodial risks