Geographic Map View for Peer Mentor Matching

Geographic matching is a coordination bottleneck for organizations operating across large Norwegian regions. Coordinators currently match mentors to contacts based on mental maps or spreadsheets, leading to suboptimal pairings that increase travel burden and reduce engagement frequency. A visual map view reduces matching time from hours to minutes and improves match quality by surfacing proximity-based options that text-based lists obscure. For Blindeforbundet specifically, the assignment dispatch feature (encrypted-assignment-dispatch) depends on accurate geographic matching to route sensitive assignments to the nearest qualified mentor, making this feature a prerequisite for that workflow's efficiency. The map also has secondary value for coordinators planning regional coverage and identifying gaps in mentor availability.

The MapViewScreen uses a Flutter map plugin (flutter_map with OpenStreetMap tiles as the privacy-respecting default, or Mapbox for richer styling) wrapped by the MapIntegrationInfrastructure component. The LocationService handles address-to-coordinate geocoding via the backend, which calls a geocoding API server-side to avoid exposing API keys on the client. Mentor locations are stored as lat/lng coordinates in the peer_mentors table, populated during profile creation or edit. The map renders clustered markers using the flutter_map_marker_cluster package. Tapping a cluster expands it; tapping a mentor pin opens a bottom sheet with the PeerMentorCardWidget and a 'View Profile' action. WCAG 2.2 AA compliance requires a non-map alternative list view accessible via a toggle button, since maps are inherently inaccessible to screen reader users. Location data is only stored with explicit user consent, aligned with GDPR requirements.