feat(desktop): double-Enter sends the queued turn

apps/desktop/src/app/chat/composer/enter-submit-dom-race.test.tsx

@@ -29,7 +29,8 @@ function Harness({
   onSubmit,
   onQueue,
   onCancel,
-  onDrain
+  onDrain,
+  onSendNow
 }: {
   busy?: boolean
   disabled?: boolean
@@ -38,6 +39,7 @@ function Harness({
   onQueue: (text: string) => void
   onCancel: () => void
   onDrain: () => void
+  onSendNow?: (id: string) => void
 }) {
   const editorRef = useRef<HTMLDivElement>(null)
   const draftRef = useRef('')
@@ -103,6 +105,12 @@ function Harness({
       }
 
       if (busy && !hasLivePayload) {
+        const head = queued[0]
+
+        if (head) {
+          onSendNow?.(head)
+        }
+
         return
       }
 
@@ -167,13 +175,21 @@ describe('composer Enter submit — live DOM vs stale composer state (#39630)',
     expect(onCancel).not.toHaveBeenCalled()
   })
 
-  it('treats an empty Enter while busy as a no-op (never an accidental Stop)', async () => {
+  it('treats an empty Enter while busy with nothing queued as a no-op (never an accidental Stop)', async () => {
     const onCancel = vi.fn()
     const onSubmit = vi.fn()
     const onQueue = vi.fn()
+    const onSendNow = vi.fn()
 
     const { getByTestId } = render(
-      <Harness busy onCancel={onCancel} onDrain={vi.fn()} onQueue={onQueue} onSubmit={onSubmit} />
+      <Harness
+        busy
+        onCancel={onCancel}
+        onDrain={vi.fn()}
+        onQueue={onQueue}
+        onSendNow={onSendNow}
+        onSubmit={onSubmit}
+      />
     )
 
     const editor = getByTestId('editor')
@@ -186,6 +202,35 @@ describe('composer Enter submit — live DOM vs stale composer state (#39630)',
     expect(onCancel).not.toHaveBeenCalled()
     expect(onSubmit).not.toHaveBeenCalled()
     expect(onQueue).not.toHaveBeenCalled()
+    expect(onSendNow).not.toHaveBeenCalled()
+  })
+
+  it('double-send: an empty Enter while busy with a queued turn sends that turn now', async () => {
+    const onCancel = vi.fn()
+    const onSendNow = vi.fn()
+
+    const { getByTestId } = render(
+      <Harness
+        busy
+        onCancel={onCancel}
+        onDrain={vi.fn()}
+        onQueue={vi.fn()}
+        onSendNow={onSendNow}
+        onSubmit={vi.fn()}
+        queued={['queued-1', 'queued-2']}
+      />
+    )
+
+    const editor = getByTestId('editor')
+
+    await act(async () => {
+      editor.textContent = ''
+      fireEvent.keyDown(editor, { key: 'Enter' })
+    })
+
+    // Head of the queue, and NOT a bare cancel — send-now promotes + interrupts.
+    expect(onSendNow).toHaveBeenCalledWith('queued-1')
+    expect(onCancel).not.toHaveBeenCalled()
   })
 
   it('drains the next queued prompt on Enter when idle with a truly empty editor', async () => {

apps/desktop/src/app/chat/composer/index.tsx

@@ -724,12 +724,21 @@ export function ChatBar({
         return
       }
 
-      // Empty Enter while busy is a no-op — interrupting is explicit (Stop/Esc),
-      // never a stray Enter after sending. With a payload, submitDraft queues it.
-      // Gate on the live DOM payload (not the render-lagged composer state) so a
-      // message typed fast / via IME while busy still reaches submitDraft() and
-      // gets queued instead of being mistaken for an empty Enter.
+      // Empty Enter while busy. With prompts queued this is the double-send:
+      // the first Enter put the words in the queue, a second sends them now
+      // (promote + interrupt + drain on settle), mirroring the idle empty-Enter
+      // drain above. With nothing queued it stays a no-op — interrupting is
+      // explicit (Stop/Esc), never a stray Enter after sending. Gate on the live
+      // DOM payload (not the render-lagged composer state) so a message typed
+      // fast / via IME while busy still reaches submitDraft() and gets queued
+      // instead of being mistaken for an empty Enter.
       if (busy && !hasLivePayload) {
+        const head = queuedPrompts.find(entry => entry.id !== queueEdit?.entryId)
+
+        if (head) {
+          sendQueuedNow(head.id)
+        }
+
         return
       }
 

apps/desktop/src/app/chat/composer/queue-panel.tsx

@@ -4,7 +4,7 @@ import { Button } from '@/components/ui/button'
 import { Codicon } from '@/components/ui/codicon'
 import { Tip } from '@/components/ui/tooltip'
 import { type Translations, useI18n } from '@/i18n'
-import { ArrowUp, iconSize, Pencil, Trash2 } from '@/lib/icons'
+import { CornerDownLeft, iconSize, Pencil, Trash2 } from '@/lib/icons'
 import { cn } from '@/lib/utils'
 import type { QueuedPromptEntry } from '@/store/composer-queue'
 
@@ -103,7 +103,7 @@ export function QueuePanel({
                     type="button"
                     variant="ghost"
                   >
-                    <ArrowUp className={iconSize.xs} />
+                    <CornerDownLeft className={iconSize.xs} />
                   </Button>
                 </Tip>
                 <Tip label={c.queueDelete}>

apps/desktop/src/lib/icons.ts

@@ -33,6 +33,7 @@ import {
   IconCommand as Command,
   IconCopy as Copy,
   IconCopy as CopyIcon,
+  IconCornerDownLeft as CornerDownLeft,
   IconCpu as Cpu,
   IconCreditCard as CreditCard,
   IconDownload as Download,
@@ -155,6 +156,7 @@ export {
   Command,
   Copy,
   CopyIcon,
+  CornerDownLeft,
   Cpu,
   CreditCard,
   Download,