[WIP] Fix generation of compound surnames in utils.js

[Copilot]

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Original prompt

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This section details on the original issue you should resolve

<issue_title>复姓不能正常生成</issue_title>
<issue_description>

OItrainer/lib/utils.js

Lines 301 to 306 in b4ec9c7

	if (getRandom() < 0.02) {
	const cs = compoundSurnames[uniformInt(0, compoundSurnames.length - 1)];
	let n = namesPool[uniformInt(0, namesPool.length - 1)];
	if (getRandom() > 0.4) n += namesPool[uniformInt(0, namesPool.length - 1)];
	return cs + n;
	}

以上代码中的 compoundSurnames 数组并没有定义。</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes 复姓不能正常生成 #17

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