perf: use subproject/query-lite for selected project group hydration

Full /segment/subproject/query returns integrations, mapped-repo flags,
and all segment fields per subproject — 222 MB for large project groups.
query-lite returns only id, name, url, slug, description which is all
the frontend needs for segment filtering and display.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Joana Maia <jmaia@contractor.linuxfoundation.org>

Author: joanagmaia

frontend/src/modules/lf/segments/lf-segments-service.js

@@ -89,9 +89,9 @@ export class LfService {
     return response.data;
   }
 
-  static async querySubprojects(body) {
+  static async querySubprojectsLite(body) {
     const response = await authAxios.post(
-      '/segment/subproject/query',
+      '/segment/subproject/query-lite',
       {
         ...body,
         excludeSegments: true,

frontend/src/modules/lf/segments/store/actions.js

@@ -277,7 +277,7 @@ export default {
       return;
     }
     try {
-      const response = await LfService.querySubprojects({
+      const response = await LfService.querySubprojectsLite({
         limit: null,
         offset: 0,
         filter: { grandparentSlug },