feat(tools): bump-cocos 批量升级引擎版本字段

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

cocoscreator_projects/scripts/test/bump-cocos.test.mjs

@@ -0,0 +1,36 @@
+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import { join } from 'node:path';
+import { readFileSync, writeFileSync } from 'node:fs';
+import { makeTempMonorepo, makeGameProject, cleanup } from './helpers.mjs';
+import { bumpVersion } from '../bump-cocos.mjs';
+
+test('bumpVersion 改写各工程 creator.version 并报告 from/to', () => {
+  const mono = makeTempMonorepo();
+  try {
+    const a = makeGameProject(mono.games, 'a', '3.8.8');
+    const changed = bumpVersion([mono.host, a], '3.8.9');
+    assert.equal(changed.length, 2);
+    assert.equal(changed[1].from, '3.8.8');
+    assert.equal(changed[1].to, '3.8.9');
+    const pkgA = JSON.parse(readFileSync(join(a, 'package.json'), 'utf8'));
+    assert.equal(pkgA.creator.version, '3.8.9');
+    const pkgHost = JSON.parse(readFileSync(join(mono.host, 'package.json'), 'utf8'));
+    assert.equal(pkgHost.creator.version, '3.8.9');
+  } finally {
+    cleanup(mono.root);
+  }
+});
+
+test('bumpVersion 对缺 creator 字段的工程补建后写入', () => {
+  const mono = makeTempMonorepo();
+  try {
+    const a = makeGameProject(mono.games, 'a', '3.8.8');
+    writeFileSync(join(a, 'package.json'), JSON.stringify({ name: 'a' }));
+    bumpVersion([a], '3.8.9');
+    const pkgA = JSON.parse(readFileSync(join(a, 'package.json'), 'utf8'));
+    assert.equal(pkgA.creator.version, '3.8.9');
+  } finally {
+    cleanup(mono.root);
+  }
+});