fix(app): keep dictation shortcuts responsive (#2268)

The composer mirrored dictation state in a second ref that could remain stale after the recording surface changed. Route shortcut decisions through the dictation lifecycle's synchronous state so finishing or rejecting a recording cannot leave Command-D latched.

packages/app/src/composer/input/state.test.ts

@@ -4,12 +4,40 @@ import {
   resolveComposerSurfacePresentation,
   runAlternateSendAction,
   runDefaultSendAction,
+  runMessageInputKeyboardAction,
   stopRealtimeVoice,
 } from "./state";
 
 const connected = { isConnected: true } as never;
 const disconnected = { isConnected: false } as never;
 
+function createDictationKeyboard({ startsRecording }: { startsRecording: boolean }) {
+  let isRecording = false;
+  const actions: string[] = [];
+
+  return {
+    actions,
+    pressDictationShortcut: () =>
+      runMessageInputKeyboardAction("dictation-toggle", {
+        focusInput: () => undefined,
+        isDictationRecording: () => isRecording,
+        markTranscriptForSend: () => actions.push("send transcript"),
+        startDictation: () => {
+          actions.push("start");
+          isRecording = startsRecording;
+        },
+        confirmDictation: () => {
+          actions.push("confirm");
+          isRecording = false;
+        },
+        cancelDictation: () => undefined,
+        toggleRealtimeVoice: () => undefined,
+        isRealtimeVoiceActive: false,
+        toggleRealtimeVoiceMute: () => undefined,
+      }),
+  };
+}
+
 describe("composer surface presentation", () => {
   it("shows only the input when no voice overlay is active", () => {
     expect(resolveComposerSurfacePresentation(false)).toEqual({
@@ -114,6 +142,27 @@ describe("computeCanStartDictation", () => {
   });
 });
 
+describe("dictation keyboard behavior", () => {
+  it("starts dictation again after the previous dictation finishes", () => {
+    const keyboard = createDictationKeyboard({ startsRecording: true });
+
+    keyboard.pressDictationShortcut();
+    keyboard.pressDictationShortcut();
+    keyboard.pressDictationShortcut();
+
+    expect(keyboard.actions).toEqual(["start", "send transcript", "confirm", "start"]);
+  });
+
+  it("can retry when starting dictation does not enter the recording state", () => {
+    const keyboard = createDictationKeyboard({ startsRecording: false });
+
+    keyboard.pressDictationShortcut();
+    keyboard.pressDictationShortcut();
+
+    expect(keyboard.actions).toEqual(["start", "start"]);
+  });
+});
+
 describe("composer send behavior", () => {
   function actions() {
     const calls: string[] = [];