Maintenance scripts / 维护脚本

Small, optional helpers live here so that the repository root stays focused on runnable entry points.

这里保存小型、可选的维护工具，让仓库根目录只保留主要运行入口。

Windows

windows/fix-java.ps1 replaces VERSION_21 with VERSION_17 in an explicitly supplied Gradle build file:

.\scripts\windows\fix-java.ps1 -BuildFile .\path\to\build.gradle.kts

The script fails without changing the file when the target does not contain VERSION_21.