now working proper types

server/src/shared/schema_qualifier.rs

@@ -1,6 +1,9 @@
  // src/shared/schema_qualifier.rs
 use sqlx::PgPool;
 use tonic::Status;
+
+// TODO in the future, remove database query on every request and implement caching for scalable
+// solution with many data and requests
  
 /// Qualifies a table name by checking for its existence in the table_definitions table.
 /// This is the robust, "source of truth" approach.