core: add history for psdoc,ddoc,drdoc

packages/hydrooj/src/script/upgrade0_1.ts

@@ -1,13 +0,0 @@
-import * as domain from '../model/domain';
-
-export const description = 'Upgrade database from 0 to 1';
-
-export async function run() {
-    const ddoc = await domain.get('system');
-    if (!ddoc) await domain.add('system', 0, 'Hydro', 'Hydro System');
-    // TODO discussion node?
-}
-
-export const validate = {};
-
-global.Hydro.script.upgrade0_1 = { run, description, validate };