The pass computes the assignment graph revision (assigngraph.Compute) from the catalog halves it follows, the placements,
the first branch of each registration and each node's capability reading, keeps it in the objects assignment-revisions
through a bus adapter modelled on the indexer's, says assignment-revision, and holds the kept revision and its catalog
source for the wants.
Builds: design 47 G A-67, §292, G-5 "the wants follow the trunk's assignment graph"
Claude-Session: https://claude.ai/code/session_01NcbgfGKaxw984XyAPfLm4h
jschoubben
5d33692d7f