The six integration tests that broke when a language's build module became the module claiming the seat whose acts is step build on that language now keep node-build-go and node-build-node as the seat definitions have them, and mesh-build-go and mesh-build-node as the catalog's manifests claim them; no indexer code changes. Claude-Session: https://claude.ai/code/session_01JG73KEq4zoDfM9WtYpcQgZ Builds: design 47 G §364, §428, §535