Add custom action to ProfileViewSet that returns aggregated daily ice usage
for a specific profile and date. Endpoint accepts date query parameter in
YYYY-MM-DD format and returns total feet built, total ice cubic yards, and
per-section breakdowns.
Implementation uses get_object_or_404 for proper 404 handling, explicit None
checking for aggregate results (no implicit defaults), and proper type
annotations throughout.
Tests added for success case, no-data case, invalid profile, and missing
date parameter validation.
