Reuse the attendee contact-picker mechanism for the location field: a Contacts button beside the location input opens the system picker scoped to postal-address rows, and the chosen contact's formatted address is dropped into the field (multi-line addresses collapsed to one line). Same no-permission guarantee as the guest picker — ACTION_PICK grants temporary read access, so no READ_CONTACTS is required. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>