v1.3.0

Added

• Scheduled autonomous transactions — listScheduledTransactions(), getScheduledTransaction(), createScheduledTransaction(), cancelScheduledTransaction() (GET/POST /agents/:agentId/transactions/scheduled).
• MCP on-chain tools accept optional executeAt (ISO 8601) and timezone to schedule future execution when autonomous is enabled in delegated context.
• Webhook events: transaction.scheduled.created, transaction.scheduled.cancelled, transaction.scheduled.due, transaction.scheduled.failed.
• Extended AutonomousTxConfig with maxScheduleHorizonDays, maxActiveSchedules, minScheduleLeadSeconds.