feat(ui): 条目管理增强 — 重命名/删除/重排序

每行右侧增加 ⋯ 按钮，弹出菜单支持重命名、删除、上移、下移。
- renameEntry / deleteEntry / moveEntry 三个 appState 方法
- rowActionMenu 弹出菜单 + renameDialog + confirmDeleteDialog
- 删除自动注销快捷键，所有操作触发配置保存
- 保留顶栏 Add/Remove 全局按钮不变

internal/i18n/locales/en.toml

@@ -467,3 +467,41 @@ other = "Minimize to tray when closing the window"
 
 [hint_minimize_to_tray]
 other = "Closing the window hides it to the system tray instead of exiting."
+
+# --- Entry actions (rename / delete / reorder) ---
+
+[btn_more]
+other = "⋯"
+
+[btn_delete]
+other = "Delete"
+
+[dialog_row_actions_title]
+other = "Entry actions"
+
+[action_rename]
+other = "Rename..."
+
+[action_delete]
+other = "Delete..."
+
+[action_move_up]
+other = "Move up"
+
+[action_move_down]
+other = "Move down"
+
+[dialog_rename_title]
+other = "Rename entry"
+
+[label_entry_name]
+other = "New name"
+
+[msg_empty_name]
+other = "Name cannot be empty."
+
+[dialog_confirm_delete_title]
+other = "Confirm delete"
+
+[msg_confirm_delete]
+other = "Delete the entry \"%s\"? This cannot be undone."