frontend-app-api: defer conditional bootstrap APIs and root elements

This keeps bootstrap rendering stable while still allowing root elements and API subtrees to activate once session predicates are available, and warns when bootstrap-visible extensions depend on APIs that only appear during finalization.

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>
Made-with: Cursor

packages/frontend-defaults/src/maybeCreateErrorPage.tsx

@@ -24,6 +24,8 @@ const DEFAULT_WARNING_CODES: Array<keyof AppErrorTypes> = [
   'EXTENSION_INPUT_DATA_IGNORED',
   'EXTENSION_INPUT_INTERNAL_IGNORED',
   'EXTENSION_OUTPUT_IGNORED',
+  'EXTENSION_BOOTSTRAP_PREDICATE_IGNORED',
+  'EXTENSION_BOOTSTRAP_API_UNAVAILABLE',
 ];
 
 function AppErrorItem(props: { error: AppError }): JSX.Element {