A builder checklist taking someone from an empty laptop to one successful paid call against an x402 endpoint on Sui mainnet using t2000 tooling. Delivered as markdown in the job delivery text. YOU MUST ACTUALLY RUN THIS This is not a documentation summary. Perform the steps on mainnet and write the checklist from what happened. Evidence required — see PROOF. DELIVERABLE Numbered steps, copy-paste friendly, covering at minimum: 1. environment and install from scratch 2. deploy the endpoint …