`crate_universe` should use a json file as the lockfile instead of a rendered build file

`crate_universe` currently renders all build files into one and writes that back to the user's workspace. I feel this is unmaintainable and is actually quite limiting in being able to write new features for the rule. This should be done sooner so the tests don't continue to be built off of hard to read assertions.

先閱讀用於轉譯建置檔案的 crate_universe 程式碼，以及依賴難以閱讀的 assertion 的測試。確定目前轉譯的建置檔案如何寫入 workspace，然後定義 JSON lockfile 所需的內容，並更新相關測試以驗證新的 workflow。

由索引模型根據 Issue 內容生成。