Sandbox runner I/O requirements are recorded only.
RogueGrid Platform Registry
Owner Execution Sandbox Runner Contract Platform Refresh V1
Registers Owner Execution Sandbox Runner Contract V1 as locked runner-contract-definition-only infrastructure. No runnable sandbox engine, production execution, mutation, audit write, send, payment, filing, credential, or promotion path is created.
No sandbox runner executes here.
Backend Dry-Run Packet Generator Contract V1 should come next.