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/pt-BR.ts

@@ -97,6 +97,7 @@ export const ptBR: TranslationResources = {
       interruptAgent: "Interromper agente",
       queueMessage: "Enfileirar mensagem",
       sendAndInterrupt: "Enviar e interromper",
+      sendAndSteer: "Enviar e orientar",
       sendMessage: "Enviar mensagem",
       queue: "Fila",
       send: "Enviar",
@@ -1856,10 +1857,13 @@ export const ptBR: TranslationResources = {
         descriptions: {
           interrupt:
             "Quando o agente está em execução, Enter interrompe. Command/Ctrl+Enter enfileira.",
+          steer:
+            "Quando o agente está em execução, Enter orienta o turno ativo. Command/Ctrl+Enter enfileira.",
           queue: "Quando o agente está em execução, Enter enfileira. Command/Ctrl+Enter envia.",
         },
         options: {
           interrupt: "Interromper",
+          steer: "Orientar",
           queue: "Fila",
         },
       },