feat: 文件预览(MD渲染/TXT/PDF/图片 + 标签去重) + 预设3改左二右一对话 + 服务端MIME补pdf/markdown

01_content/src/client/locales.ts

@@ -61,7 +61,9 @@ export const zh = {
   'pane.open': '打开',
   'pane.wip': '开发中（后续版本接入）',
   'pane.explorerNoCwd': '当前会话没有工作目录',
-  'pane.openLater': '文件打开将在后续版本支持',
+  'pane.openLater': '该类型暂不支持预览',
+  'file.loading': '加载中…',
+  'file.fail': '文件读取失败',
   'pane.gitNotRepo': '当前目录不是 git 仓库',
   'pane.gitClean': '工作区干净',
   'pane.jobsEmpty': '当前会话暂无后台任务',
@@ -137,7 +139,9 @@ export const en = {
   'pane.open': 'Open',
   'pane.wip': 'Coming in a later version',
   'pane.explorerNoCwd': 'No working directory for the current session',
-  'pane.openLater': 'Opening files comes in a later version',
+  'pane.openLater': 'Preview not supported for this type',
+  'file.loading': 'Loading…',
+  'file.fail': 'Failed to read file',
   'pane.gitNotRepo': 'Not a git repository',
   'pane.gitClean': 'Working tree clean',
   'pane.jobsEmpty': 'No background jobs in the current session',