修复：项目语言验证信息统一

app/models/project_language.rb

@@ -13,5 +13,5 @@
 class ProjectLanguage < ApplicationRecord
   include Projectable
 
-  validates :name, uniqueness: true
+  validates :name, uniqueness: { message: "已存在" }
 end

config/locales/zh-CN.yml

@@ -223,6 +223,8 @@ zh-CN:
         platform: '直播平台'
         live_time: '开播时间'
         duration: '直播时长'
+      project_language:
+        name: '项目语言'
       license: 
         name: '许可证名称'
         content: '许可证内容'