feat: update minimax default to M2.7, add zh i18n to workflow templates (#19)

- aliases: minimax default → MiniMax-M2.7, minimax-highspeed → MiniMax-M2.7-highspeed
- workflow templates: add [i18n.zh] section with Chinese name/description

workflows/translate-polish.toml

@@ -4,6 +4,10 @@ description = "Auto-detect language, translate, and review for naturalness"
 category = "language"
 tags = ["translation", "language", "localization"]
 
+[i18n.zh]
+name = "翻译与润色"
+description = "自动检测语言，翻译文本，并审校译文的自然度"
+
 [[parameters]]
 name = "source_text"
 description = "The text to translate"