chore(deps): replace supertest with @eggjs/supertest (#5483)

Replace the external supertest dependency with the internal
@eggjs/supertest package across the monorepo. This change uses the
workspace's own supertest implementation instead of the external
package.

- Remove supertest and @types/supertest from pnpm catalog
- Update package.json files in koa and egg-bin packages
- Update all import statements from 'supertest' to '@eggjs/supertest'

🤖 Generated with [Claude Code](https://claude.ai/code)

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

## Summary by CodeRabbit

- Chores
- Migrated HTTP testing client to internal @eggjs/supertest across the
workspace.
- Removed external supertest and its type definitions from workspace
configuration and package dependencies.

- Tests
- Updated test suites to import the request helper from
@eggjs/supertest.
- No changes to test behavior or assertions; execution remains the same.

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

Co-authored-by: Claude <noreply@anthropic.com>

Author: fengmk2

packages/koa/package.json

@@ -80,11 +80,10 @@
     "@types/on-finished": "catalog:",
     "@types/parseurl": "catalog:",
     "@types/statuses": "catalog:",
-    "@types/supertest": "catalog:",
+    "@eggjs/supertest": "workspace:*",
     "@types/type-is": "catalog:",
     "@types/vary": "catalog:",
     "mm": "catalog:",
-    "supertest": "catalog:",
     "tsdown": "catalog:",
     "typescript": "catalog:"
   }

packages/koa/test/application/context.test.ts

@@ -1,7 +1,7 @@
 import assert from 'node:assert/strict';
 import { describe, it } from 'vitest';
 
-import request from 'supertest';
+import { request } from '@eggjs/supertest';
 
 import { Application, Context } from '../../src/index.ts';
 

packages/koa/test/application/currentContext.test.ts

@@ -1,7 +1,7 @@
 import assert from 'node:assert/strict';
 import { describe, it } from 'vitest';
 
-import request from 'supertest';
+import { request } from '@eggjs/supertest';
 import Koa from '../../src/index.ts';
 
 describe('app.currentContext', () => {

packages/koa/test/application/index.test.ts

@@ -3,7 +3,7 @@ import { describe, it } from 'vitest';
 import type { ServerResponse, IncomingMessage } from 'node:http';
 import { once } from 'node:events';
 
-import request from 'supertest';
+import { request } from '@eggjs/supertest';
 import createHttpError, { HttpError } from 'http-errors';
 
 import Koa from '../../src/index.ts';

packages/koa/test/application/request.test.ts

@@ -1,7 +1,7 @@
 import assert from 'node:assert/strict';
 import { describe, it } from 'vitest';
 
-import request from 'supertest';
+import { request } from '@eggjs/supertest';
 
 import Koa from '../../src/index.ts';
 

packages/koa/test/application/respond.test.ts

@@ -3,7 +3,7 @@ import { describe, it } from 'vitest';
 import fs from 'node:fs';
 import { scheduler } from 'node:timers/promises';
 
-import request from 'supertest';
+import { request } from '@eggjs/supertest';
 import statuses from 'statuses';
 
 import Koa from '../../src/index.ts';

packages/koa/test/application/response.test.ts

@@ -1,7 +1,7 @@
 import assert from 'node:assert/strict';
 import { describe, it } from 'vitest';
 
-import request from 'supertest';
+import { request } from '@eggjs/supertest';
 
 import Koa from '../../src/index.ts';
 

packages/koa/test/application/use.test.ts

@@ -1,7 +1,7 @@
 import assert from 'node:assert/strict';
 import { describe, it } from 'vitest';
 
-import request from 'supertest';
+import { request } from '@eggjs/supertest';
 
 import Koa, { type MiddlewareFunc } from '../../src/index.ts';
 

packages/koa/test/context/cookies.test.ts

@@ -1,7 +1,7 @@
 import assert from 'node:assert/strict';
 import { describe, it } from 'vitest';
 
-import request from 'supertest';
+import { request } from '@eggjs/supertest';
 
 import Koa, { type Context } from '../../src/index.ts';
 

packages/koa/test/context/onerror.test.ts

@@ -5,7 +5,7 @@ import { once } from 'node:events';
 
 import { describe, it } from 'vitest';
 
-import request from 'supertest';
+import { request } from '@eggjs/supertest';
 
 import Koa, { type Context } from '../../src/index.ts';
 import context from '../test-helpers/context.ts';