Record the decisions reached in planning into docs/design/m2-frontend-v2.md:
component library = Mantine; map = Leaflet (react-leaflet + leaflet.heat +
markercluster, isolated behind a component seam for a future MapLibre swap);
OpenAPI typed client committed + CI-checked; CSRF simplified to SameSite=Lax +
a custom write header (no per-session token); heatmap-first map as the home
view with a required time-range picker and an auxiliary paginated list;
record CRUD edits non-PK fields and deletes single rows (no UI create); bare
ingestion endpoints stay until M3; trips optional. Wireframes intentionally
skipped for this milestone.
tliu93