默认启用详细日志输出

[Glavo]

No description provided.

[Copilot]

Pull Request Overview

This PR changes the default behavior for verbose logging output in the HMCL launcher by inverting the logic to enable verbose output by default unless explicitly disabled.

• Changes the verbose output flag logic from opt-in to opt-out behavior
• Now enables verbose logging by default unless the environment variable is explicitly set to "false"

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[Copilot]

The logic change from opt-in to opt-out for verbose output could impact users who rely on the current quiet default behavior. Consider using a more explicit approach like checking for both 'true' and 'false' values, with a clear documented default, to make the behavior more predictable.

Suggested change

	HLVerboseOutput = HLGetEnvVar(L"HMCL_LAUNCHER_VERBOSE_OUTPUT").value_or(L"") != L"false";
	// Explicitly check for "true" or "1" (case-insensitive), default to false
	auto verboseEnv = HLGetEnvVar(L"HMCL_LAUNCHER_VERBOSE_OUTPUT");
	std::wstring verboseValue = verboseEnv.value_or(L"");
	std::transform(verboseValue.begin(), verboseValue.end(), verboseValue.begin(), ::towlower);
	HLVerboseOutput = (verboseValue == L"true" || verboseValue == L"1");