修复: force_send单锁竞态+classify unknown不重试(撤销误判)+UX交互批

src/i18n/en/aiChat.ts

@@ -107,6 +107,8 @@ export default {
 
     // ── Confirm dialog ──
     confirmDeleteConversation: 'Delete chat "{title}"? This cannot be undone.',
+    // UX-260617-24: stronger warning when deleting the currently active conversation
+    confirmDeleteActiveConversation: '"{title}" is the chat you are currently viewing. Deleting it will clear the current view and cannot be undone. Continue?',
     clearChat: 'Clear',
     confirmClearChat: 'Are you sure you want to clear all messages in this chat? This cannot be undone.',
     // UX-08 §3.4: generate-in-progress confirm when starting a new chat (only when generating, otherwise no behavior change)