fix(ui): detect VS Code from bootstrap config in shared runtime helpers

d2efa707 fixed projects-store detection via __VSCODE_CONFIG__, but
lib/desktop.isVSCodeRuntime (used by useDirectoryStore) still required
RuntimeAPIs. At webview startup that left directory init on stale
localStorage paths from other windows (#2359).

Share bootstrap detection in lib/vscodeBootstrap and use it from both
desktop runtime checks and the projects-store helper.

Co-authored-by: Serhii Dziupin <makeittech@users.noreply.github.com>

packages/ui/src/lib/desktop.ts

@@ -4,6 +4,7 @@ import type { DraftStarterRef } from '@/lib/draftStarters';
 import type { MobileKeyboardMode } from '@/lib/mobileKeyboardMode';
 import { getRuntimeApiBaseUrl, getRuntimeKey } from '@/lib/runtime-switch';
 import { getRegisteredRuntimeAPIs } from '@/contexts/runtimeAPIRegistry';
+import { isVSCodeBootstrapPresent } from '@/lib/vscodeBootstrap';
 
 type ManagedRemoteTunnelPreset = {
   id: string;
@@ -538,6 +539,12 @@ export const startDesktopWindowDrag = async (): Promise<boolean> => {
 };
 
 export const isVSCodeRuntime = (): boolean => {
+  // Prefer extension-host bootstrap config: it is injected in webview HTML
+  // before any store module evaluates, so startup does not depend on
+  // RuntimeAPIs registration order (see #2359).
+  if (isVSCodeBootstrapPresent()) {
+    return true;
+  }
   const apis = getRegisteredRuntimeAPIs();
   return apis?.runtime?.isVSCode === true;
 };