feat: add housekeeper task interceptor trigger and update docs

postgresql/procedures/02_enable_partitioning.sql

@@ -57,3 +57,10 @@ BEGIN
         END IF;
     END LOOP;
 END $$;
+
+-- Attach trigger to housekeeper table to silently discard tasks for partitioned tables
+DROP TRIGGER IF EXISTS housekeeper_filter ON housekeeper;
+CREATE TRIGGER housekeeper_filter
+BEFORE INSERT ON housekeeper
+FOR EACH ROW
+EXECUTE FUNCTION partitions.housekeeper_insert_trigger();