feat(fls): a project's own applications through the editor model

The model carries the captured beans of a project's own applications
(ownApplicationsByNodeId); the export writes them again on the system
software of their node, and their classes go with the archive's other
entries. Checked by Java: from the exported files FILIUS loads
Accumulator and Broadcast as from the original; the export test no longer
leaves own applications out, and a probe that drops them is caught.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

packages/fls/test/ownApplications.ts

@@ -11,7 +11,7 @@ export const OWN_APPLICATION_FILES = ['java-examples/anwendung_komplett.fls', 'j
 type View = { nodes?: { system: Record<string, unknown> }[] };
 
 /** Java's view without the applications FILIUS does not ship. */
-export function withoutOwnApplications<T>(view: T): T {
+function withoutOwnApplications<T>(view: T): T {
   const { nodes } = view as View;
   if (nodes === undefined) return view;
   return {