BL6 (ba43e400) kept KeyPart and ParseKeyPart in meshcatalogclient until the callers moved; they have, so the wrappers and their duplicate test go.
Builds: design 47 G §670
Claude-Session: https://claude.ai/code/session_01JG73KEq4zoDfM9WtYpcQgZ
A member's go.mod names the oldest version a module accepts; the check builds the group's own heads whatever it names. go.sum lines of mesh packages are left out.
Claude-Session: https://claude.ai/code/session_01NcbgfFSnn24M3GcqttoU7i