added a pingable column to the instances table

db_schema.sql

@@ -1,5 +1,5 @@
 -- Database export via SQLPro (https://www.sqlprostudio.com/)
--- Exported by camille at 27-01-2025 14:35.
+-- Exported by camille at 28-01-2025 14:06.
 -- WARNING: This file may contain descructive statements such as DROPs.
 -- Please ensure that you are running the script at the proper location.
 
@@ -14,6 +14,7 @@ CREATE TABLE IF NOT EXISTS public.instances (
 	record_update_by bigint,
 	record_updated_at timestamp without time zone,
 	vote integer DEFAULT 1 NOT NULL,
+	pingable boolean,
 	PRIMARY KEY(id)
 );