Make the command center stable and workspace-aware (#2749)

* feat(app): expand command center actions

Keep command center navigation stable by revealing only clipped rows without smooth centering. Prioritize a concise default list while making workspace, Git, pane, and creation actions searchable through the existing contribution and action-policy paths.

* test(app): search for query-only command action

Add project is intentionally absent from the unfiltered command center. Exercise the overlay flow through search before selecting it.

packages/app/src/keyboard/keyboard-action-dispatcher.ts

@@ -27,6 +27,7 @@ export type KeyboardActionId =
   | "workspace.pane.close"
   | "workspace.focus.toggle"
   | "workspace.terminal.new"
+  | "workspace.browser.new"
   | "sidebar.toggle.right"
   | "workspace.new"
   | "workspace.project.pick"
@@ -61,6 +62,7 @@ export type KeyboardActionDefinition =
   | { id: "workspace.pane.close"; scope: KeyboardActionScope }
   | { id: "workspace.focus.toggle"; scope: KeyboardActionScope }
   | { id: "workspace.terminal.new"; scope: KeyboardActionScope }
+  | { id: "workspace.browser.new"; scope: KeyboardActionScope }
   | { id: "sidebar.toggle.right"; scope: KeyboardActionScope }
   | { id: "workspace.new"; scope: KeyboardActionScope }
   | { id: "workspace.project.pick"; scope: KeyboardActionScope }

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

@@ -6,6 +6,7 @@ import type {
   MessageInputKeyboardActionKind,
 } from "@/keyboard/actions";
 import { type KeyCombo, parseChordString } from "@/keyboard/shortcut-string";
+import { chordStringToShortcutKeys } from "@/keyboard/shortcut-string";
 
 export type { KeyCombo } from "@/keyboard/shortcut-string";
 
@@ -1406,6 +1407,19 @@ export function getDefaultKeysForAction(
   return null;
 }
 
+export function resolveShortcutKeysForAction(
+  actionId: string,
+  overrides: Readonly<Record<string, string>>,
+  platform: { isMac: boolean; isDesktop: boolean },
+): ShortcutKey[][] | null {
+  const bindingId = getBindingIdForAction(actionId, platform);
+  if (!bindingId) return null;
+  const override = overrides[bindingId];
+  if (override) return chordStringToShortcutKeys(override);
+  const defaultKeys = getDefaultKeysForAction(actionId, platform);
+  return defaultKeys ? [defaultKeys] : null;
+}
+
 /**
  * The `KeyboardEvent.key` whose hold reveals the sidebar workspace-jump number
  * badges. It must match the modifier of the active `workspace.navigate.index`