Fix: Escape on ask_user form now interrupts assistant stream

Previously, pressing Escape to skip an ask_user question only
dismissed the form but the assistant kept running. Now Escape
both skips the question and aborts the assistant stream, returning
the user to the input box.

Author: jahooma

cli/src/chat.tsx

@@ -1525,6 +1525,7 @@ export const Chat = ({
               },
               cwd: getProjectRoot() ?? process.cwd(),
             })}
+            onInterruptStream={chatKeyboardHandlers.onInterruptStream}
           />
         )}
       </box>

cli/src/components/chat-input-bar.tsx

@@ -71,6 +71,7 @@ interface ChatInputBarProps {
   // Handlers
   handleSubmit: () => Promise<void>
   onPaste: (fallbackText?: string) => void
+  onInterruptStream: () => void
 }
 
 export const ChatInputBar = ({
@@ -108,6 +109,7 @@ export const ChatInputBar = ({
   handlePublish,
   handleSubmit,
   onPaste,
+  onInterruptStream,
 }: ChatInputBarProps) => {
   const inputMode = useChatStore((state) => state.inputMode)
   const setInputMode = useChatStore((state) => state.setInputMode)
@@ -290,6 +292,7 @@ export const ChatInputBar = ({
   const handleFormSkip = () => {
     if (!askUserState) return
     skip()
+    onInterruptStream()
   }
 
   const effectivePlaceholder =