feat(app): make the New tab launcher keyboard-first

Cmd/Ctrl+T now opens the focused pane's launcher, while explicit target shortcuts bypass the menu. Dispatcher ownership is scoped to the app tree so retained workspaces cannot intercept commands.

packages/app/src/hooks/use-keyboard-action-handler.ts

@@ -1,10 +1,10 @@
 import { useEffect, useRef } from "react";
 
-import {
-  keyboardActionDispatcher,
-  type KeyboardActionDefinition,
-  type KeyboardActionId,
+import type {
+  KeyboardActionDefinition,
+  KeyboardActionId,
 } from "@/keyboard/keyboard-action-dispatcher";
+import { useKeyboardActionDispatcher } from "@/keyboard/keyboard-action-dispatcher-context";
 
 interface UseKeyboardActionHandlerInput {
   handlerId: string;
@@ -37,6 +37,7 @@ interface UseKeyboardActionHandlerInput {
  *     registration and would otherwise go stale).
  */
 export function useKeyboardActionHandler(input: UseKeyboardActionHandlerInput) {
+  const keyboardActionDispatcher = useKeyboardActionDispatcher();
   const inputRef = useRef(input);
   inputRef.current = input;
 
@@ -58,5 +59,5 @@ export function useKeyboardActionHandler(input: UseKeyboardActionHandlerInput) {
       },
       handle: (action) => inputRef.current.handle(action),
     });
-  }, [input.handlerId, input.priority, actionsKey]);
+  }, [actionsKey, input.handlerId, input.priority, keyboardActionDispatcher]);
 }

packages/app/src/hooks/use-keyboard-shortcuts.ts

@@ -5,7 +5,7 @@ import { useKeyboardShortcutsStore } from "@/stores/keyboard-shortcuts-store";
 import { setCommandCenterFocusRestoreElement } from "@/utils/command-center-focus-restore";
 import { getResidentBrowserWebview } from "@/desktop/browser/resident-webviews";
 import { navigateToWorkspace } from "@/stores/navigation-active-workspace-store";
-import { keyboardActionDispatcher } from "@/keyboard/keyboard-action-dispatcher";
+import { useKeyboardActionDispatcher } from "@/keyboard/keyboard-action-dispatcher-context";
 import {
   type ChordState,
   type KeyboardShortcutInput,
@@ -37,6 +37,7 @@ import {
   navigateToLastWorkspace,
   useActiveWorkspaceSelection,
 } from "@/stores/navigation-active-workspace-store";
+import { dispatchTopWebOverlayKeyDown } from "@/lib/overlay-root";
 
 export function useKeyboardShortcuts({
   enabled,
@@ -55,6 +56,7 @@ export function useKeyboardShortcuts({
   exitFocusMode: () => void;
   cycleTheme?: () => void;
 }) {
+  const keyboardActionDispatcher = useKeyboardActionDispatcher();
   const pathname = usePathname();
   const router = useRouter();
   const resetModifiers = useKeyboardShortcutsStore((s) => s.resetModifiers);
@@ -269,7 +271,6 @@ export function useKeyboardShortcuts({
         },
         bindings,
       });
-
       chordStateRef.current = result.nextChordState;
       if (
         shouldPublishBrowserShortcutPolicy({
@@ -313,6 +314,10 @@ export function useKeyboardShortcuts({
         return;
       }
 
+      if (dispatchTopWebOverlayKeyDown(event)) {
+        return;
+      }
+
       // During IME composition, Enter confirms the candidate selection and must
       // not route through global shortcuts like message send.
       if (isImeComposingKeyboardEvent(event)) {
@@ -405,6 +410,7 @@ export function useKeyboardShortcuts({
     isMac,
     isMobile,
     isWorkspaceFocusModeEnabled,
+    keyboardActionDispatcher,
     openProjectPickerAction,
     pathname,
     publishBrowserShortcutPolicy,