15c1976472
Three ui-conversation spec conflicts resolve to master's SlotTestRuntime rewrites. Adaptation to the new outward session face: ISession gains the command verb (the composer chip and the /permission picker submit through it), FixtureSession grows the matching fail-loud stub plus the waitingApproval summary default, and the picker reads the projection through projections.faceOf (the ProjectionsFace shape) instead of the retired store getter.