core: 压缩响应内容

packages/hydrooj/package.json

@@ -1,6 +1,6 @@
 {
     "name": "hydrooj",
-    "version": "2.20.36",
+    "version": "2.20.37",
     "bin": "bin/hydrooj.js",
     "main": "dist/loader.js",
     "typings": "dist/loader.d.ts",
@@ -20,6 +20,7 @@
         "js-yaml": "^4.0.0",
         "koa": "^2.13.1",
         "koa-body": "^4.2.0",
+        "koa-compress": "^5.0.1",
         "koa-proxies": "^0.11.0",
         "koa-router": "^10.0.0",
         "koa-static-cache": "^5.1.3",