The bus module's bussnap moves whole, with the archive package it reads and its tests
(lead answer A-2: busarchive moves with it); the bus module, the recovery module and the
nightly dump import them from here, and no copy stays in mesh-catalog.
Builds: design 47 G §655, A-2 (.work/47-G/dev2-ledger.md)
Claude-Session: https://claude.ai/code/session_01JG73KEq4zoDfM9WtYpcQgZ