Add scalafmt (plugin) to scala (client/server) generators

描述

贡献者指南

技术栈

scala

领域

api

议题类型

feature

难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。

3

预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。

half day

活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。

fresh

清晰度议题是否清楚说明期望改动、验收标准和下一步。

clear

前置要求

Basic knowledge of ScalaFamiliarity with OpenAPI generator's template systemUnderstanding of how code generation plugins work

新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。

70

研究方向

Start by reviewing the reference PR #23273 which added a similar plugin for TypeScript generators. Look at the Scala generator classes in the codebase, such as `ScalaClientCodegen` and `ScalaServerCodegen`, to understand how existing plugins are configured. Also check the build configuration (e.g., `build.gradle`) to see how dependencies and tasks are added. The issue requires adding scalafmt as a plugin that runs formatting on generated Scala code, similar to how the TypeScript counterpart is done.