Add active-turn steering (#3394)

* feat(agents): add active-turn steering

Let users choose whether an immediate prompt interrupts or joins the active turn. The daemon owns exact-turn admission, provider delivery, safe fallback, and canonical timeline identity while queueing remains client-side.

* fix(agents): stabilize steering history and replay QA

* fix(agents): preserve steering timeline order

* fix(agents): reconcile resumed provider history

* fix(agents): serialize steering with cancellation

* test(agents): prove Claude multi-tool steering

* test(agents): force explicit history hydration

* fix(agents): flush output before steer admission

packages/app/src/i18n/resources/ko.ts

@@ -97,6 +97,7 @@ export const ko: TranslationResources = {
       interruptAgent: "에이전트 중단",
       queueMessage: "메시지 대기열에 추가",
       sendAndInterrupt: "보내고 중단",
+      sendAndSteer: "보내고 지시 추가",
       sendMessage: "메시지 보내기",
       queue: "대기열",
       send: "보내기",
@@ -1836,11 +1837,14 @@ export const ko: TranslationResources = {
         descriptions: {
           interrupt:
             "에이전트가 실행 중일 때 Enter는 중단합니다. Command/Ctrl+Enter는 대기열에 추가합니다.",
+          steer:
+            "에이전트가 실행 중일 때 Enter는 현재 턴에 지시합니다. Command/Ctrl+Enter는 대기열에 추가합니다.",
           queue:
             "에이전트가 실행 중일 때 Enter는 대기열에 추가합니다. Command/Ctrl+Enter는 제출합니다.",
         },
         options: {
           interrupt: "중단",
+          steer: "지시",
           queue: "대기열",
         },
       },