fix: add missing tsd on application (#5406)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **Chores**
- Updated a development dependency to its latest minor release for
improved stability.

- **New Features**
- Enhanced server operations with improved error handling and background
processing capabilities, offering richer configuration support.

- **Tests**
  - Refined configuration validations to strengthen testing reliability.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Author: fengmk2

package.json

@@ -55,7 +55,7 @@
     "@arethetypeswrong/cli": "^0.17.3",
     "@eggjs/bin": "^7.0.2",
     "@eggjs/koa": "^2.20.6",
-    "@eggjs/mock": "^6.0.6",
+    "@eggjs/mock": "^6.0.7",
     "@eggjs/supertest": "^8.2.0",
     "@eggjs/tsconfig": "1",
     "@types/koa-bodyparser": "^4.3.12",

src/lib/application.ts

@@ -294,3 +294,15 @@ export class Application extends EggApplicationCore {
   }
 }
 
+declare module '@eggjs/core' {
+  // add EggApplicationCore overrides types
+  interface EggCore {
+    onClientError(err: any, socket: Socket): void;
+    onServer(server: http.Server): void;
+    locals: Record<string, any>;
+    runInBackground(scope: (ctx: Context) => Promise<void>, req?: unknown): void;
+    toAsyncFunction(fn: (...args: any[]) => any): (...args: any[]) => any;
+    dumpConfig(): void;
+    get keys(): string[];
+  }
+}

test/index.test-d.ts

@@ -9,6 +9,8 @@ import {
   start, SingleModeApplication, SingleModeAgent,
   MiddlewareFunc,
   Singleton,
+  PowerPartial,
+  EggAppConfig,
 } from '../src/index.js';
 import { HttpClient } from '../src/urllib.js';
 import { IMessenger } from '../src/lib/core/messenger/IMessenger.js';
@@ -18,6 +20,9 @@ expectType<IMessenger>(app.messenger);
 expectType<IMessenger>(app.messenger.broadcast('test'));
 expectType<void>(app.loggers.reload());
 
+const config = {} as PowerPartial<EggAppConfig>;
+expectType<boolean | undefined>(config.static?.gzip);
+
 const ctx = app.createAnonymousContext();
 
 expectType<Promise<void>>(app.runInAnonymousContextScope(async ctx => {