Use structured location data in matching

[willdaly]

Summary

The whiteboard calls out location as a key data input. The current onboarding flow has a freeform location field, but the app needs a clearer strategy for storing and using location as a matching signal.

Scope

• decide how location should be represented for testing and matching
• improve collection and normalization of location data
• incorporate location into compatibility logic or filtering where appropriate

Acceptance criteria

• location is stored in a format that is useful beyond plain text
• location can influence filtering or compatibility logic
• the team can test nearby versus distant match scenarios