feat(annotate): 指哪打哪标注 MVP——窗格折叠键旁标注按钮 → 蓝色冒泡光标 → 点击弹输入框(✓/✕) → 打包(窗口N+屏幕/窗口内坐标+元素上下文+要求)注入宿主输入框不发送，失败回退剪贴板

01_content/src/client/locales.ts

@@ -181,6 +181,10 @@ export const zh = {
   'pane.termFail': '终端不可用（宿主缺少 node-pty/ws 或连接失败）',
   'pane.closeTab': '关闭标签页',
   'pane.collapse': '折叠窗格',
+  'annot.label': '标注：点击窗口中的位置提要求',
+  'annot.placeholder': '对这里提要求…（Enter 确认，Shift+Enter 换行，Esc 取消）',
+  'annot.ok': '确认：注入对话框输入框（不发送）',
+  'annot.cancel': '取消',
   'pane.expand': '展开窗格',
   'pane.jobsTitle': '后台任务',
   'pane.subagents': '子代理',
@@ -386,6 +390,10 @@ export const en = {
   'pane.termFail': 'Terminal unavailable (host missing node-pty/ws, or connection failed)',
   'pane.closeTab': 'Close tab',
   'pane.collapse': 'Collapse pane',
+  'annot.label': 'Annotate: click a spot in the window',
+  'annot.placeholder': 'Describe what to change here… (Enter to confirm, Shift+Enter newline, Esc cancel)',
+  'annot.ok': 'Confirm: put into chat input (not sent)',
+  'annot.cancel': 'Cancel',
   'pane.expand': 'Expand pane',
   'pane.jobsTitle': 'Background jobs',
   'pane.subagents': 'Subagents',