feat: pk;config

PluralKit.Core/Database/Migrations/21.sql

@@ -0,0 +1,29 @@
+-- schema version 21
+-- create `config` table
+
+create table config (
+    system int primary key references systems(id) on delete cascade,
+    ui_tz text not null default 'UTC',
+    pings_enabled bool not null default true,
+    latch_timeout int,
+    member_limit_override int,
+    group_limit_override int
+);
+
+insert into config select
+    id as system,
+    ui_tz,
+    pings_enabled,
+    latch_timeout,
+    member_limit_override,
+    group_limit_override
+from systems;
+
+alter table systems
+    drop column ui_tz,
+    drop column pings_enabled,
+    drop column latch_timeout,
+    drop column member_limit_override,
+    drop column group_limit_override;
+
+update info set schema_version = 21;