Stacklist Positioning Bridge: v4.0.1 → v5 (Outline)

Stacklist's proposed repositioning from v4.0.1 to v5 redefines it from a "social curation network" to a "discovery network" where AI is a first-class structural participant alongside humans. This outline details the core reframe, checks governance triggers for the major version change, and specifies which elements of the previous positioning will be retained or altered, particularly the category sentence and the explicit role of AI.