Expand description
Point-lookup executor for sum queries. Parallels count’s
execute_point_lookup.rs.
Two entry points: execute_no_proof (sum the matched value-trees
via grove_get_path_query) and execute_point_lookup_sum_with_proof
(proof bytes via grove.get_proved_path_query). Verifier side:
GroveDb::verify_query + sum_value_or_default() extraction on
each verified SumTree element.