Map CRE listing research to existing customer validation
docs: map MR-10 to first customer validation
Align product direction and first-workflow research scope
docs: map MR-07 media consistency to conditional validation
docs: map MR-06 newsletter evidence to bounded validation
docs: define MR-04 image review target validation
docs: map MR-03 review exchange to PMF validation
docs: connect brand scope and PMF findings to feature issues