tools/lite_send_smoke drives the real SDXL backend's exact GUI send path (newaddr/status/list/tree/send/rescan) for diagnosing shielded sends. scripts/gen-lite-checkpoints.sh generates verified mainnet checkpoints from a synced dragonxd (getblockhash + getblockmerkletree), self-checking against a known checkpoint before emitting. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>