feat(vscode): add archive all sessions action (#1262)

* feat(vscode): add archive all sessions action

* Update packages/ui/src/components/layout/VSCodeLayout.tsx

Signed-off-by: Jake <101855602+jjdubski@users.noreply.github.com>

* fix: Fail-open default archives all sessions when workspace can't be resolved

* fix: Already-archived descendants are included in the archive call

* fix: add i18n for the newly added toasts

* Restore icon name from 'add-line' to 'add'

Signed-off-by: Jake <101855602+jjdubski@users.noreply.github.com>

* update: fix merge conflict and update code structure into components

---------

Signed-off-by: Jake <101855602+jjdubski@users.noreply.github.com>
Co-authored-by: Bohdan Triapitsyn <artmore@protonmail.com>

packages/ui/src/lib/i18n/messages/zh-TW.ts

@@ -2384,6 +2384,11 @@ export const dict: Record<I18nKey, string> = {
   'vscodeLayout.title.sessions': '會話',
   'vscodeLayout.title.sessionFallback': '會話',
   'vscodeLayout.actions.backToSessionsAria': '返回會話清單',
+  'vscodeLayout.actions.archiveAllAria': '封存所有會話',
+  'vscodeLayout.actions.archiveAllConfirm': '全部封存',
+  'vscodeLayout.actions.archiveAllSuccess': '已封存 {count} 個會話',
+  'vscodeLayout.actions.archiveAllError': '封存 {count} 個會話失敗',
+  'vscodeLayout.actions.cancel': '取消',
   'vscodeLayout.actions.newSessionAria': '新增會話',
   'vscodeLayout.actions.openAgentManagerAria': '開啟 Agent 管理器',
   'vscodeLayout.actions.resizeSessionsSidebarAria': '調整會話側邊欄大小',