B0's shape wins: the running checker asks and records facts, the checking program
decides. The registry's types win: the rules and the program read the generated
checker contract and the domain SDK, and no mesh-sdk delivery import is left.
The registry's series, renames and unparsed seat definitions become facts with
their refusals as rules; the tagged versions ride on the case. The program reads
the heads' seat definitions through sdk/seatdefs and the running checker lays them
over its reader's list by seat, reading no file of the heads: the reader's list
is larger than a run input's bound.
Claude-Session: https://claude.ai/code/session_01NcbgfFSnn24M3GcqttoU7i
