feat(apiv2): database changes

PluralKit.Core/Database/Migrations/18.sql

@@ -0,0 +1,18 @@
+-- schema version 18: 2021-09-26 --
+-- Add UUIDs for APIs
+
+create extension if not exists pgcrypto;
+
+alter table systems add column uuid uuid default gen_random_uuid();
+create index systems_uuid_idx on systems(uuid);
+
+alter table members add column uuid uuid default gen_random_uuid();
+create index members_uuid_idx on members(uuid);
+
+alter table switches add column uuid uuid default gen_random_uuid();
+create index switches_uuid_idx on switches(uuid);
+
+alter table groups add column uuid uuid default gen_random_uuid();
+create index groups_uuid_idx on groups(uuid);
+
+update info set schema_version = 18;