core: export record.pdomain by default

packages/hydrooj/package.json

@@ -1,6 +1,6 @@
 {
     "name": "hydrooj",
-    "version": "2.28.3",
+    "version": "2.28.4",
     "bin": "bin/hydrooj.js",
     "main": "dist/loader.js",
     "typings": "dist/loader.d.ts",
@@ -30,7 +30,7 @@
         "lru-cache": "^6.0.0",
         "minio": "7.0.17",
         "moment-timezone": "^0.5.33",
-        "mongodb": "^3.6.8",
+        "mongodb": "^3.6.9",
         "nodemailer": "^6.6.1",
         "p-queue": "^6.6.2",
         "reflect-metadata": "^0.1.13",
@@ -42,7 +42,7 @@
         "@types/adm-zip": "^0.4.34",
         "@types/fs-extra": "^9.0.11",
         "@types/js-yaml": "^4.0.1",
-        "@types/koa": "^2.13.1",
+        "@types/koa": "^2.13.2",
         "@types/koa-compress": "^4.0.1",
         "@types/koa-router": "^7.4.2",
         "@types/koa-static-cache": "^5.1.0",