The runner's step enum gains build; Place puts the build first, required whatever the policy names, and asks it of the seat mesh-builds naming the module's own entry by fingerprint; the hearer takes mesh-builds' step-ended as the other seats' ends, held to its one entry. Builds: design 47 G §230, A-91, A-97, A-99 Claude-Session: https://claude.ai/code/session_01NcbgfGKaxw984XyAPfLm4h