Audit all types for whether they need `readonly` modifier

描述

貢獻者指南

技術棧

typescript

領域

developer experience

議題類型

refactor

難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。

3

預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。

1-2 days

活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。

blocked

清晰度議題是否清楚說明預期改動、驗收標準和下一步。

clear

前置要求

TypeScriptfamiliarity with type festreadonly modifier understanding

新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。

50

研究方向

First, review the changes made in the similar issue #758 to understand the pattern. Then, examine all type definitions in the type fest source (likely in the 'source' directory) to identify types where a `readonly` modifier is missing but could be applied, especially for object types and arrays. Pay attention to utility types that wrap or transform objects, as they may need to preserve or add readonly constraints. Check the GitHub issue comments for any guidance from maintainers or the assignee (@Emiyaaaaa).