Disable prettyPrint by default for Google Sheets API responses

Large Google Sheets API responses are currently pretty-printed by default. For machine-to-machine use, the additional whitespace and line breaks provide no benefit while increasing response size and I/O. When processing large responses, this can also contribute to unnecessary memory usage.

Describe the solution you'd like

Change the default value of prettyPrint from true to false for the Sheets API discovery document
and send prettyPrint=false unless the caller says otherwise.

Describe alternatives you've considered

The current workaround is to explicitly pass prettyPrint=False to every request. This works, but requires application code to opt out of an unnecessary default and is easy to miss, especially in codebases making many Sheets API requests.

Another option would be to modify the client code to inject prettyPrint=False, but changing the API discovery document's default seems simpler and more consistent with the intended API behavior.

Additional context

This is particularly relevant for applications processing large Sheets responses programmatically. Avoiding pretty printing would reduce the amount of data transferred and processed, as well as the memory required to hold the response in memory. For large responses, this can also help reduce peak process RSS.

As a bonus, this would make the default more appropriate for API clients, where responses are consumed programmatically rather than displayed directly to users.

在 repository 中定位 Sheets API discovery document，並搜尋 prettyPrint 參數及其預設值。將文件中記載的預設值變更為 false，同時保留呼叫端明確提供的值，然後執行相關測試套件或 discovery document 測試，以驗證要求預設使用 prettyPrint=false。