test: trigger Etap 4 corporate site deployment

Update timestamp to test automatic GitHub Pages deployment
for corporate site via notify-hub workflow.

Part of task 010 Etap 4 testing.

Author: Claude-InfoTech

docs/content/_index.md

@@ -163,5 +163,5 @@ Flexible framework for rapid creation of Hugo-based static sites with various te
 
 *Ready to contribute? Check out our [Developer Guide](/open-source/onboarding/) to get started!*
 
-<!-- Test build: 2025-09-23 16:20 -->
-<!-- Trigger build -->
+<!-- Test build: 2025-09-28 18:05 -->
+<!-- Trigger deployment test for Etap 4 -->