Tick the four Phase B checkboxes (B.1-B.4) and append a Phase B
completion log inline (per the "append phase logs to design docs"
memory rule). Captures per-primitive confidence ranges, source
signals, and the PII-discipline regression that all four
primitives uphold.
Phase A + Phase B = 10 primitives emitting on every shard;
PHASE_AB_PRIMITIVES is binding for every subsequent phase.
Phase C (motor.shell_mastery.*) lands next.