refactor(native-chat): remove retry UI

Remove unused retry functionality for failed message delivery from the native chat status component. The retryableOutboxEntry state is no longer managed, so the retry button and associated handling can be safely removed.

src/renderer/src/components/native-chat/NativeChatStructuredSession.tsx

@@ -299,8 +299,6 @@ export function NativeChatStructuredSession(
         sessionId={props.sessionId}
         error={controller.error}
         composerError={composerError}
-        retryableOutboxEntry={null}
-        onRetry={controller.retry}
         isVisible={props.isVisible}
         backgroundTasks={controller.backgroundTasks}
         stopBackgroundTask={controller.stopBackgroundTask}

src/renderer/src/components/native-chat/NativeChatStructuredSessionStatus.tsx

@@ -1,10 +1,6 @@
 import { useState } from 'react'
-import { RotateCcw } from 'lucide-react'
-import type { StructuredAgentSessionOutboxEntry } from '../../../../shared/structured-agent-session-outbox'
-import { Button } from '@/components/ui/button'
 import { NativeChatBackgroundTasksStatus } from './NativeChatBackgroundTasksStatus'
 import type { StructuredSessionBackgroundTasksView } from './structured-session-background-tasks-view'
-import { translate } from '@/i18n/i18n'
 
 type StoppingBackgroundTasks = {
   sessionId: string
@@ -18,8 +14,6 @@ export function NativeChatStructuredSessionStatus(props: {
   sessionId: string
   error: string | null
   composerError: string | null
-  retryableOutboxEntry: StructuredAgentSessionOutboxEntry | null
-  onRetry: (clientMessageId: string) => void
   isVisible: boolean
   backgroundTasks: StructuredSessionBackgroundTasksView
   stopBackgroundTask: (taskId?: string) => Promise<unknown>
@@ -60,33 +54,6 @@ export function NativeChatStructuredSessionStatus(props: {
 
   return (
     <>
-      {props.retryableOutboxEntry ? (
-        <div className="mx-auto flex w-full max-w-4xl items-center justify-between gap-3 px-4 py-1 text-xs text-muted-foreground">
-          <span>
-            {props.retryableOutboxEntry.state === 'unconfirmed'
-              ? translate(
-                  'auto.components.native.chat.NativeChatStructuredSession.1f772bb5d0',
-                  'Message delivery is unconfirmed.'
-                )
-              : translate(
-                  'auto.components.native.chat.NativeChatStructuredSession.93ef441197',
-                  'Message was not sent.'
-                )}
-          </span>
-          <Button
-            type="button"
-            variant="ghost"
-            size="xs"
-            onClick={() => props.onRetry(props.retryableOutboxEntry!.clientMessageId)}
-          >
-            <RotateCcw className="size-3" />
-            {translate(
-              'auto.components.native.chat.NativeChatStructuredSession.a5e7f14068',
-              'Retry'
-            )}
-          </Button>
-        </div>
-      ) : null}
       {props.error || props.composerError ? (
         <p className="mx-auto w-full max-w-4xl px-4 py-1 text-xs text-destructive">
           {props.error ?? props.composerError}