fix(discord): remove dead fields, timeChanged invoke loop, and unsupported {paused} placeholder

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/locales/zh.ts

@@ -533,7 +533,7 @@ export const zhTranslation = {
     discordAppleCovers: '通过 Apple Music 为 Discord 获取封面',
     discordAppleCoversDesc: '将艺术家和专辑名称发送至 Apple 搜索 API，以为 Discord 个人资料查找封面图片。出于隐私考虑，默认禁用。',
     discordTemplates: '自定义文本模板',
-    discordTemplatesDesc: '自定义在 Discord 个人资料上显示的信息。变量：{title}, {artist}, {album}, {paused}',
+    discordTemplatesDesc: '自定义在 Discord 个人资料上显示的信息。变量：{title}, {artist}, {album}',
     discordTemplateDetails: '主行 (details)',
     discordTemplateState: '副行 (state)',
     discordTemplateLargeText: '专辑提示 (largeText)',