VS-07 Map Vertical Slice v1 (Base Map + One Premium Layer)

[CherryClairette]

What to build

Ship the first full map slice with map rendering, navigation controls, one standard layer, and one premium-gated layer. The slice must demonstrate real user value and policy behavior end-to-end with role-aware UI responses.

Acceptance criteria

• Base map renders and supports pan and zoom
• One non-premium data layer can be toggled on and off
• One premium layer is gated according to user role
• Loading and error states are handled for map data
• Map slice has test coverage for core interactions

Blocked by

VS-03 Tailwind + Design Token Foundation
VS-06 Authorization Gate v1 (Free vs Premium)