- Add CHAIN138_XDC_ZERO_BRIDGE_RUNBOOK and 07-ccip pointer doc - Add config/xdc-zero templates, parent register fragment, README - Add merge-endpointconfig-chain138.sh (jq merge, XDC_ZERO_ENDPOINT_DIR) - Add xdc-zero-chain138-preflight.sh; trim XDC URL vars in load-project-env - Wire AGENTS.md, MASTER_INDEX, verify README, .env.master.example Made-with: Cursor